---
_id: '59872'
abstract:
- lang: eng
text: Lightweight design is a driving concept in modern automotive engineering to
minimize resource consumption over a vehicle's lifecycle through multi-material
design, which relies on the use of joining techniques in car body fabrication.
Multi-material design and the increasing trend towards producing large structural
components using the megacasting process pose considerable challenges, particularly
in the mechanical joining of aluminium-silicon (AlSi) castings. These castings
typically exhibit low ductility and are prone to cracking when mechanically joined.
Based on the excellent castability of hypoeutectic AlSi alloys, these are applied
in sand casting and die casting as well as in megacasting. With a silicon content
between 7 wt% and 12 wt%, these AlSi-alloys have a plate-like silicon phase that
initiates cracks during mechanical joining. To enhance the joinability of castings,
the research hypothesis is that improved solidification conditions enable a significant
modification in the microstructure and therefore, increase the mechanical properties.
During the manufacture of the castings using the sand casting process, the solidification
conditions within the structural elements are varied to modify the microstructure
to obtain castings with graded microstructure. The castings are evaluated using
mechanical, microstructural and joining testing methods and finally, a microstructure-joinability
correlation is established.
article_number: '01081'
article_type: original
author:
- first_name: Moritz
full_name: Neuser, Moritz
id: '32340'
last_name: Neuser
- first_name: Malte Christian
full_name: Schlichter, Malte Christian
id: '61977'
last_name: Schlichter
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
id: '48411'
last_name: Hoyer
- first_name: Mathias
full_name: Bobbert, Mathias
id: '7850'
last_name: Bobbert
- first_name: Gerson
full_name: Meschut, Gerson
id: '32056'
last_name: Meschut
orcid: 0000-0002-2763-1246
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: Neuser M, Schlichter MC, Hoyer K-P, Bobbert M, Meschut G, Schaper M. Mechanical
joinability of microstructurally graded structural components manufactured from
hypoeutectic aluminium casting alloys. 44th Conference of the International
Deep Drawing Research Group (IDDRG 2025). 2025;408. doi:10.1051/matecconf/202540801081
apa: Neuser, M., Schlichter, M. C., Hoyer, K.-P., Bobbert, M., Meschut, G., &
Schaper, M. (2025). Mechanical joinability of microstructurally graded structural
components manufactured from hypoeutectic aluminium casting alloys. 44th Conference
of the International Deep Drawing Research Group (IDDRG 2025), 408,
Article 01081. https://doi.org/10.1051/matecconf/202540801081
bibtex: '@article{Neuser_Schlichter_Hoyer_Bobbert_Meschut_Schaper_2025, title={Mechanical
joinability of microstructurally graded structural components manufactured from
hypoeutectic aluminium casting alloys}, volume={408}, DOI={10.1051/matecconf/202540801081},
number={01081}, journal={44th Conference of the International Deep Drawing Research
Group (IDDRG 2025)}, author={Neuser, Moritz and Schlichter, Malte Christian and
Hoyer, Kay-Peter and Bobbert, Mathias and Meschut, Gerson and Schaper, Mirko},
year={2025} }'
chicago: Neuser, Moritz, Malte Christian Schlichter, Kay-Peter Hoyer, Mathias Bobbert,
Gerson Meschut, and Mirko Schaper. “Mechanical Joinability of Microstructurally
Graded Structural Components Manufactured from Hypoeutectic Aluminium Casting
Alloys.” 44th Conference of the International Deep Drawing Research Group (IDDRG
2025) 408 (2025). https://doi.org/10.1051/matecconf/202540801081.
ieee: 'M. Neuser, M. C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, and M.
Schaper, “Mechanical joinability of microstructurally graded structural components
manufactured from hypoeutectic aluminium casting alloys,” 44th Conference of
the International Deep Drawing Research Group (IDDRG 2025), vol. 408, Art.
no. 01081, 2025, doi: 10.1051/matecconf/202540801081.'
mla: Neuser, Moritz, et al. “Mechanical Joinability of Microstructurally Graded
Structural Components Manufactured from Hypoeutectic Aluminium Casting Alloys.”
44th Conference of the International Deep Drawing Research Group (IDDRG 2025),
vol. 408, 01081, 2025, doi:10.1051/matecconf/202540801081.
short: M. Neuser, M.C. Schlichter, K.-P. Hoyer, M. Bobbert, G. Meschut, M. Schaper,
44th Conference of the International Deep Drawing Research Group (IDDRG 2025)
408 (2025).
conference:
end_date: 2025-06-05
location: Lissabon (Portugal)
name: 44th Conference of the International Deep Drawing Research Group (IDDRG 2025)
start_date: 2025-06-02
date_created: 2025-05-12T15:21:06Z
date_updated: 2026-02-24T13:41:58Z
department:
- _id: '43'
- _id: '158'
- _id: '157'
- _id: '9'
- _id: '321'
doi: 10.1051/matecconf/202540801081
intvolume: ' 408'
keyword:
- Joining
- Casting
- Self-pierce riveting
- Aluminium casting alloy
language:
- iso: eng
main_file_link:
- open_access: '1'
url: "\thttps://doi.org/10.1051/matecconf/202540801081"
oa: '1'
project:
- _id: '131'
name: 'TRR 285 - A: TRR 285 - Project Area A'
- _id: '136'
name: 'TRR 285 – A02: TRR 285 - Subproject A02'
- _id: '135'
name: 'TRR 285 – A01: TRR 285 - Subproject A01'
- _id: '130'
name: 'TRR 285: Methodenentwicklung zur mechanischen Fügbarkeit in wandlungsfähigen
Prozessketten'
publication: 44th Conference of the International Deep Drawing Research Group (IDDRG
2025)
publication_status: published
quality_controlled: '1'
status: public
title: Mechanical joinability of microstructurally graded structural components manufactured
from hypoeutectic aluminium casting alloys
type: journal_article
user_id: '7850'
volume: 408
year: '2025'
...
---
_id: '36335'
abstract:
- lang: eng
text: Transformation of Fe- and Cu-rich primary phase particles was studied in an
Al-Li-based alloy prepared by twin-roll casting. Thin foils for combined STEM
and SEM experiments were prepared by electrolytic twin-jet polishing. They were
in-situ heated in a TEM heating stage and observed at 200 kV in the JEOL JEM 2200FS
electron microscope equipped with STEM HAADF and BF detectors and SEM BSE and
SE detectors working both in composition and topographic modes. The resulting
structures were combined with EDS mapping performed directly in the heating holder.
Dissolution and transformation of Cu- and Fe-rich particles occur above 500 °C.
EDS maps acquired on the foil cooled down to room temperature show that Cu and
Fe are both still present in newly formed particles, most likely indicating the
presence of the Al7Cu2Fe phase.
author:
- first_name: Miroslav
full_name: CIESLAR, Miroslav
last_name: CIESLAR
- first_name: Barbora
full_name: KŘIVSKÁ, Barbora
last_name: KŘIVSKÁ
- first_name: Rostislav
full_name: KRÁLÍK, Rostislav
last_name: KRÁLÍK
- first_name: Lucia
full_name: BAJTOŠOVÁ, Lucia
last_name: BAJTOŠOVÁ
- first_name: Olexandr
full_name: Grydin, Olexandr
id: '43822'
last_name: Grydin
- first_name: Mykhailo
full_name: STOLBCHENKO, Mykhailo
last_name: STOLBCHENKO
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: 'CIESLAR M, KŘIVSKÁ B, KRÁLÍK R, et al. HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED
ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY. In: METAL 2022 Conference Proeedings.
TANGER Ltd.; 2022. doi:10.37904/metal.2022.4438'
apa: CIESLAR, M., KŘIVSKÁ, B., KRÁLÍK, R., BAJTOŠOVÁ, L., Grydin, O., STOLBCHENKO,
M., & Schaper, M. (2022). HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY
STUDIED BY IN-SITU ELECTRON MICROSCOPY. METAL 2022 Conference Proeedings.
Metal 2022, Brno. https://doi.org/10.37904/metal.2022.4438
bibtex: '@inproceedings{CIESLAR_KŘIVSKÁ_KRÁLÍK_BAJTOŠOVÁ_Grydin_STOLBCHENKO_Schaper_2022,
title={HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON
MICROSCOPY}, DOI={10.37904/metal.2022.4438},
booktitle={METAL 2022 Conference Proeedings}, publisher={TANGER Ltd.}, author={CIESLAR,
Miroslav and KŘIVSKÁ, Barbora and KRÁLÍK, Rostislav and BAJTOŠOVÁ, Lucia and Grydin,
Olexandr and STOLBCHENKO, Mykhailo and Schaper, Mirko}, year={2022} }'
chicago: CIESLAR, Miroslav, Barbora KŘIVSKÁ, Rostislav KRÁLÍK, Lucia BAJTOŠOVÁ,
Olexandr Grydin, Mykhailo STOLBCHENKO, and Mirko Schaper. “HOMOGENIZATION OF TWIN-ROLL
CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON MICROSCOPY.” In METAL 2022
Conference Proeedings. TANGER Ltd., 2022. https://doi.org/10.37904/metal.2022.4438.
ieee: 'M. CIESLAR et al., “HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY
STUDIED BY IN-SITU ELECTRON MICROSCOPY,” presented at the Metal 2022, Brno, 2022,
doi: 10.37904/metal.2022.4438.'
mla: CIESLAR, Miroslav, et al. “HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY
STUDIED BY IN-SITU ELECTRON MICROSCOPY.” METAL 2022 Conference Proeedings,
TANGER Ltd., 2022, doi:10.37904/metal.2022.4438.
short: 'M. CIESLAR, B. KŘIVSKÁ, R. KRÁLÍK, L. BAJTOŠOVÁ, O. Grydin, M. STOLBCHENKO,
M. Schaper, in: METAL 2022 Conference Proeedings, TANGER Ltd., 2022.'
conference:
end_date: 2022-05-19
location: Brno
name: Metal 2022
start_date: 2022-05-18
date_created: 2023-01-12T09:39:41Z
date_updated: 2023-01-12T09:44:17Z
department:
- _id: '158'
- _id: '321'
doi: 10.37904/metal.2022.4438
keyword:
- Al-Li-based alloy
- in-situ TEM
- homogenization
- phase transformation
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.confer.cz/metal/2022/4438-homogenization-of-twin-roll-cast-al-li-based-alloy-studied-by-in-situ-electron-microscopy
oa: '1'
publication: METAL 2022 Conference Proeedings
publication_identifier:
issn:
- 2694-9296
publication_status: published
publisher: TANGER Ltd.
status: public
title: HOMOGENIZATION OF TWIN-ROLL CAST Al-Li-BASED ALLOY STUDIED BY IN-SITU ELECTRON
MICROSCOPY
type: conference
user_id: '43822'
year: '2022'
...
---
_id: '36339'
abstract:
- lang: eng
text: Al-Li-based alloys are an attractive material for aircraft and aerospace applications.
Preparation of these alloys by twin-roll casting (TRC), which combines rapid metal
solidification and subsequent plastic reduction in a single processing step, could
improve the properties of the alloys compared to materials prepared by conventional
direct-chill casting. A commonly used approach for identifying primary phases
is a chemical analysis by energy dispersive spectroscopy (EDS). More accurate
results can be achieved by combining the method with diffraction analysis. This
process can be considerably simplified in microscopes equipped with automated
crystal orientation and phase mapping (ACOM-TEM). Al-Cu-Li-Mg-Zr alloy was prepared
by twin-roll casting. A combination of TEM and STEM images with chemical analysis
by EDS and ACOM-TEM was used to obtain complex information about phases of boundary
primary particles. The efficiency of the individual methods for the phase identification
in TRC Al-Li-based alloys is discussed.
author:
- first_name: Lucia
full_name: BAJTOŠOVÁ, Lucia
last_name: BAJTOŠOVÁ
- first_name: Olexandr
full_name: Grydin, Olexandr
id: '43822'
last_name: Grydin
- first_name: Mykhailo
full_name: STOLBCHENKO, Mykhailo
last_name: STOLBCHENKO
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
- first_name: Barbora
full_name: KŘIVSKÁ, Barbora
last_name: KŘIVSKÁ
- first_name: Rostislav
full_name: KRÁLÍK, Rostislav
last_name: KRÁLÍK
- first_name: Michaela
full_name: ŠLAPÁKOVÁ, Michaela
last_name: ŠLAPÁKOVÁ
- first_name: Miroslav
full_name: CIESLAR, Miroslav
last_name: CIESLAR
citation:
ama: 'BAJTOŠOVÁ L, Grydin O, STOLBCHENKO M, et al. Phase identification in twin-roll
cast Al-Li alloys. In: METAL 2022 Conference Proeedings. TANGER Ltd.; 2022.
doi:10.37904/metal.2022.4437'
apa: BAJTOŠOVÁ, L., Grydin, O., STOLBCHENKO, M., Schaper, M., KŘIVSKÁ, B., KRÁLÍK,
R., ŠLAPÁKOVÁ, M., & CIESLAR, M. (2022). Phase identification in twin-roll
cast Al-Li alloys. METAL 2022 Conference Proeedings. Metal 2022, Brno.
https://doi.org/10.37904/metal.2022.4437
bibtex: '@inproceedings{BAJTOŠOVÁ_Grydin_STOLBCHENKO_Schaper_KŘIVSKÁ_KRÁLÍK_ŠLAPÁKOVÁ_CIESLAR_2022,
title={Phase identification in twin-roll cast Al-Li alloys}, DOI={10.37904/metal.2022.4437},
booktitle={METAL 2022 Conference Proeedings}, publisher={TANGER Ltd.}, author={BAJTOŠOVÁ,
Lucia and Grydin, Olexandr and STOLBCHENKO, Mykhailo and Schaper, Mirko and KŘIVSKÁ,
Barbora and KRÁLÍK, Rostislav and ŠLAPÁKOVÁ, Michaela and CIESLAR, Miroslav},
year={2022} }'
chicago: BAJTOŠOVÁ, Lucia, Olexandr Grydin, Mykhailo STOLBCHENKO, Mirko Schaper,
Barbora KŘIVSKÁ, Rostislav KRÁLÍK, Michaela ŠLAPÁKOVÁ, and Miroslav CIESLAR. “Phase
Identification in Twin-Roll Cast Al-Li Alloys.” In METAL 2022 Conference Proeedings.
TANGER Ltd., 2022. https://doi.org/10.37904/metal.2022.4437.
ieee: 'L. BAJTOŠOVÁ et al., “Phase identification in twin-roll cast Al-Li
alloys,” presented at the Metal 2022, Brno, 2022, doi: 10.37904/metal.2022.4437.'
mla: BAJTOŠOVÁ, Lucia, et al. “Phase Identification in Twin-Roll Cast Al-Li Alloys.”
METAL 2022 Conference Proeedings, TANGER Ltd., 2022, doi:10.37904/metal.2022.4437.
short: 'L. BAJTOŠOVÁ, O. Grydin, M. STOLBCHENKO, M. Schaper, B. KŘIVSKÁ, R. KRÁLÍK,
M. ŠLAPÁKOVÁ, M. CIESLAR, in: METAL 2022 Conference Proeedings, TANGER Ltd., 2022.'
conference:
end_date: 2022-05-19
location: Brno
name: Metal 2022
start_date: 2022-05-18
date_created: 2023-01-12T09:42:02Z
date_updated: 2023-04-27T16:35:42Z
department:
- _id: '158'
- _id: '321'
doi: 10.37904/metal.2022.4437
keyword:
- Al-Cu-Li-M-Zr-Fe alloy
- twin-roll casting
- phase identification
- ACOM-TEM
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.confer.cz/metal/2022/4437-phase-identification-in-twin-roll-cast-al-li-alloys
oa: '1'
publication: METAL 2022 Conference Proeedings
publication_identifier:
issn:
- 2694-9296
publication_status: published
publisher: TANGER Ltd.
quality_controlled: '1'
status: public
title: Phase identification in twin-roll cast Al-Li alloys
type: conference
user_id: '43720'
year: '2022'
...
---
_id: '29196'
abstract:
- lang: eng
text: In biomedical engineering, laser powder bed fusion is an advanced manufacturing
technology, which enables, for example, the production of patient-customized implants
with complex geometries. Ti-6Al-7Nb shows promising improvements, especially regarding
biocompatibility, compared with other titanium alloys. The biocompatible features
are investigated employing cytocompatibility and antibacterial examinations on
Al2O3-blasted and untreated surfaces. The mechanical properties of additively
manufactured Ti-6Al-7Nb are evaluated in as-built and heat-treated conditions.
Recrystallization annealing (925 °C for 4 h), β annealing (1050 °C for 2 h), as
well as stress relieving (600 °C for 4 h) are applied. For microstructural investigation,
scanning and transmission electron microscopy are performed. The different microstructures
and the mechanical properties are compared. Mechanical behavior is determined
based on quasi-static tensile tests and strain-controlled low cycle fatigue tests
with total strain amplitudes εA of 0.35%, 0.5%, and 0.8%. The as-built and stress-relieved
conditions meet the mechanical demands for the tensile properties of the international
standard ISO 5832-11. Based on the Coffin–Manson–Basquin relation, fatigue strength
and ductility coefficients, as well as exponents, are determined to examine fatigue
life for the different conditions. The stress-relieved condition exhibits, overall,
the best properties regarding monotonic tensile and cyclic fatigue behavior.
article_number: '122'
article_type: original
author:
- first_name: Maxwell
full_name: Hein, Maxwell
id: '52771'
last_name: Hein
orcid: 0000-0002-3732-2236
- first_name: David
full_name: Kokalj, David
last_name: Kokalj
- first_name: Nelson Filipe
full_name: Lopes Dias, Nelson Filipe
last_name: Lopes Dias
- first_name: Dominic
full_name: Stangier, Dominic
last_name: Stangier
- first_name: Hilke
full_name: Oltmanns, Hilke
last_name: Oltmanns
- first_name: Sudipta
full_name: Pramanik, Sudipta
last_name: Pramanik
- first_name: Manfred
full_name: Kietzmann, Manfred
last_name: Kietzmann
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
id: '48411'
last_name: Hoyer
- first_name: Jessica
full_name: Meißner, Jessica
last_name: Meißner
- first_name: Wolfgang
full_name: Tillmann, Wolfgang
last_name: Tillmann
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: Hein M, Kokalj D, Lopes Dias NF, et al. Low Cycle Fatigue Performance of Additively
Processed and Heat-Treated Ti-6Al-7Nb Alloy for Biomedical Applications. Metals.
2022;12(1). doi:10.3390/met12010122
apa: Hein, M., Kokalj, D., Lopes Dias, N. F., Stangier, D., Oltmanns, H., Pramanik,
S., Kietzmann, M., Hoyer, K.-P., Meißner, J., Tillmann, W., & Schaper, M.
(2022). Low Cycle Fatigue Performance of Additively Processed and Heat-Treated
Ti-6Al-7Nb Alloy for Biomedical Applications. Metals, 12(1), Article
122. https://doi.org/10.3390/met12010122
bibtex: '@article{Hein_Kokalj_Lopes Dias_Stangier_Oltmanns_Pramanik_Kietzmann_Hoyer_Meißner_Tillmann_et
al._2022, title={Low Cycle Fatigue Performance of Additively Processed and Heat-Treated
Ti-6Al-7Nb Alloy for Biomedical Applications}, volume={12}, DOI={10.3390/met12010122},
number={1122}, journal={Metals}, publisher={MDPI AG}, author={Hein, Maxwell and
Kokalj, David and Lopes Dias, Nelson Filipe and Stangier, Dominic and Oltmanns,
Hilke and Pramanik, Sudipta and Kietzmann, Manfred and Hoyer, Kay-Peter and Meißner,
Jessica and Tillmann, Wolfgang and et al.}, year={2022} }'
chicago: Hein, Maxwell, David Kokalj, Nelson Filipe Lopes Dias, Dominic Stangier,
Hilke Oltmanns, Sudipta Pramanik, Manfred Kietzmann, et al. “Low Cycle Fatigue
Performance of Additively Processed and Heat-Treated Ti-6Al-7Nb Alloy for Biomedical
Applications.” Metals 12, no. 1 (2022). https://doi.org/10.3390/met12010122.
ieee: 'M. Hein et al., “Low Cycle Fatigue Performance of Additively Processed
and Heat-Treated Ti-6Al-7Nb Alloy for Biomedical Applications,” Metals,
vol. 12, no. 1, Art. no. 122, 2022, doi: 10.3390/met12010122.'
mla: Hein, Maxwell, et al. “Low Cycle Fatigue Performance of Additively Processed
and Heat-Treated Ti-6Al-7Nb Alloy for Biomedical Applications.” Metals,
vol. 12, no. 1, 122, MDPI AG, 2022, doi:10.3390/met12010122.
short: M. Hein, D. Kokalj, N.F. Lopes Dias, D. Stangier, H. Oltmanns, S. Pramanik,
M. Kietzmann, K.-P. Hoyer, J. Meißner, W. Tillmann, M. Schaper, Metals 12 (2022).
date_created: 2022-01-10T08:25:58Z
date_updated: 2023-04-27T16:42:19Z
ddc:
- '620'
department:
- _id: '158'
doi: 10.3390/met12010122
file:
- access_level: closed
content_type: application/pdf
creator: maxhein
date_created: 2022-01-10T08:27:11Z
date_updated: 2022-01-10T08:27:11Z
file_id: '29197'
file_name: Hein et al - 2022 - Low Cycle Fatigue Performance of Additively Processed
and Heat-Treated Ti-6Al-7Nb Alloy for Biomedical Applications.pdf
file_size: 6222748
relation: main_file
success: 1
file_date_updated: 2022-01-10T08:27:11Z
has_accepted_license: '1'
intvolume: ' 12'
issue: '1'
keyword:
- General Materials Science
- Metals and Alloys
- laser powder bed fusion
- Ti-6Al-7Nb
- titanium alloy
- biomedical engineering
- low cycle fatigue
- microstructure
- nanostructure
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://www.mdpi.com/2075-4701/12/1/122
oa: '1'
publication: Metals
publication_identifier:
issn:
- 2075-4701
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Low Cycle Fatigue Performance of Additively Processed and Heat-Treated Ti-6Al-7Nb
Alloy for Biomedical Applications
type: journal_article
user_id: '43720'
volume: 12
year: '2022'
...
---
_id: '28017'
abstract:
- lang: eng
text: Processing aluminum alloys employing powder bed fusion of metals (PBF-LB/M)
is becoming more attractive for the industry, especially if lightweight applications
are needed. Unfortunately, high-strength aluminum alloys such as AA7075 are prone
to hot cracking during PBF-LB/M, as well as welding. Both a large solidification
range promoted by the alloying elements zinc and copper and a high thermal gradient
accompanied with the manufacturing process conditions lead to or favor hot cracking.
In the present study, a simple method for modifying the powder surface with titanium
carbide nanoparticles (NPs) as a nucleating agent is aimed. The effect on the
microstructure with different amounts of the nucleating agent is shown. For the
aluminum alloy 7075 with 2.5 ma% titanium carbide nanoparticles, manufactured
via PBF-LB/M, crack-free samples with a refined microstructure having no discernible
melt pool boundaries and columnar grains are observed. After using a two-step
ageing heat treatment, ultimate tensile strengths up to 465 MPa and an 8.9% elongation
at break are achieved. Furthermore, it is demonstrated that not all nanoparticles
used remain in the melt pool during PBF-LB/M.
author:
- first_name: Steffen
full_name: Heiland, Steffen
id: '77250'
last_name: Heiland
- first_name: Benjamin
full_name: Milkereit, Benjamin
last_name: Milkereit
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
last_name: Hoyer
- first_name: Evgeny
full_name: Zhuravlev, Evgeny
last_name: Zhuravlev
- first_name: Olaf
full_name: Keßler, Olaf
last_name: Keßler
- first_name: Mirko
full_name: Schaper, Mirko
last_name: Schaper
citation:
ama: Heiland S, Milkereit B, Hoyer K-P, Zhuravlev E, Keßler O, Schaper M. Requirements
for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free
and Dense Parts. Materials. Published online 2021. doi:https://doi.org/10.3390/ma14237190
apa: Heiland, S., Milkereit, B., Hoyer, K.-P., Zhuravlev, E., Keßler, O., &
Schaper, M. (2021). Requirements for Processing High-Strength AlZnMgCu Alloys
with PBF-LB/M to Achieve Crack-Free and Dense Parts. Materials. https://doi.org/10.3390/ma14237190
bibtex: '@article{Heiland_Milkereit_Hoyer_Zhuravlev_Keßler_Schaper_2021, title={Requirements
for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve Crack-Free
and Dense Parts}, DOI={https://doi.org/10.3390/ma14237190},
journal={Materials}, author={Heiland, Steffen and Milkereit, Benjamin and Hoyer,
Kay-Peter and Zhuravlev, Evgeny and Keßler, Olaf and Schaper, Mirko}, year={2021}
}'
chicago: Heiland, Steffen, Benjamin Milkereit, Kay-Peter Hoyer, Evgeny Zhuravlev,
Olaf Keßler, and Mirko Schaper. “Requirements for Processing High-Strength AlZnMgCu
Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts.” Materials,
2021. https://doi.org/10.3390/ma14237190.
ieee: 'S. Heiland, B. Milkereit, K.-P. Hoyer, E. Zhuravlev, O. Keßler, and M. Schaper,
“Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to Achieve
Crack-Free and Dense Parts,” Materials, 2021, doi: https://doi.org/10.3390/ma14237190.'
mla: Heiland, Steffen, et al. “Requirements for Processing High-Strength AlZnMgCu
Alloys with PBF-LB/M to Achieve Crack-Free and Dense Parts.” Materials,
2021, doi:https://doi.org/10.3390/ma14237190.
short: S. Heiland, B. Milkereit, K.-P. Hoyer, E. Zhuravlev, O. Keßler, M. Schaper,
Materials (2021).
date_created: 2021-11-29T08:23:43Z
date_updated: 2022-01-06T06:57:50Z
ddc:
- '620'
department:
- _id: '9'
- _id: '158'
- _id: '219'
doi: https://doi.org/10.3390/ma14237190
file:
- access_level: closed
content_type: application/pdf
creator: heilands
date_created: 2021-11-29T08:19:19Z
date_updated: 2021-11-29T08:19:19Z
file_id: '28018'
file_name: 2021_Heiland_MDPI Materials_Requirements for Processing High-Strength
AlZnMgCu Alloys with PBF-LBM to Achieve Crack-Free and Dense Parts_print.pdf
file_size: 2202343
relation: main_file
success: 1
file_date_updated: 2021-11-29T08:19:19Z
has_accepted_license: '1'
keyword:
- grain refinement
- crack reduction
- laser beam melting
- aluminum alloy
- titanium carbide
- nanoparticle
- PBF-LB/M
language:
- iso: eng
main_file_link:
- url: https://www.mdpi.com/1996-1944/14/23/7190/htm
publication: Materials
status: public
title: Requirements for Processing High-Strength AlZnMgCu Alloys with PBF-LB/M to
Achieve Crack-Free and Dense Parts
type: journal_article
user_id: '77250'
year: '2021'
...
---
_id: '24589'
abstract:
- lang: eng
text: "Additive manufacturing, e.g. by laser powder bed fusion (LPBF), is very attractive
for lightweight constructions, as complex and stress-optimised structures integrating
multiple functions can be produced within one process. Unfortunately, high strength
AlZnMgCu alloys tend to hot cracking during LPBF\r\nand thus have not so far been
applicable. In this work the melting and solidification behaviour of\r\nAlZnMgCu
alloy powder variants with particle surface inoculation was analysed by Differential
Fast\r\nScanning Calorimetry. The aim is to establish a method that makes it possible
to assess powder modifications in terms of their suitability for LPBF on a laboratory
scale requiring only small amounts of powder.\r\nTherefore, solidification undercooling
is evaluated at cooling rates relevant for LPBF. A method for the\r\ntemperature
correction and normalisation of the DFSC results is proposed. Two ways of powder
modification were tested for the powder particles surface inoculation by titanium
carbide (TiC) nanoparticles:\r\nvia wet-chemical deposition and via mechanical
mixing.\r\nA low undercooling from DFSC correlates with a low number of cracks
of LPBF-manufactured cubes. It\r\nappears that a reduced undercooling combined
with reduced solidification onset scatter indicates the\r\npossibility of crack-free
LPBF of alloys that otherwise tend to hot cracking."
article_number: '109677'
article_type: original
author:
- first_name: Evgeny
full_name: Zhuravlev, Evgeny
last_name: Zhuravlev
- first_name: Benjamin
full_name: Milkereit, Benjamin
last_name: Milkereit
- first_name: Bin
full_name: Yang, Bin
last_name: Yang
- first_name: Steffen
full_name: Heiland, Steffen
last_name: Heiland
- first_name: Pascal
full_name: Vieth, Pascal
last_name: Vieth
- first_name: Markus
full_name: Voigt, Markus
last_name: Voigt
- first_name: Mirko
full_name: Schaper, Mirko
last_name: Schaper
- first_name: Guido
full_name: Grundmeier, Guido
last_name: Grundmeier
- first_name: Christoph
full_name: Schick, Christoph
last_name: Schick
- first_name: Olaf
full_name: Kessler, Olaf
last_name: Kessler
citation:
ama: Zhuravlev E, Milkereit B, Yang B, et al. Assessment of AlZnMgCu alloy powder
modification for crack-free laser powder bed fusion by differential fast scanning
calorimetry. Materials & Design. Published online 2021. doi:10.1016/j.matdes.2021.109677
apa: Zhuravlev, E., Milkereit, B., Yang, B., Heiland, S., Vieth, P., Voigt, M.,
Schaper, M., Grundmeier, G., Schick, C., & Kessler, O. (2021). Assessment
of AlZnMgCu alloy powder modification for crack-free laser powder bed fusion by
differential fast scanning calorimetry. Materials & Design, Article
109677. https://doi.org/10.1016/j.matdes.2021.109677
bibtex: '@article{Zhuravlev_Milkereit_Yang_Heiland_Vieth_Voigt_Schaper_Grundmeier_Schick_Kessler_2021,
title={Assessment of AlZnMgCu alloy powder modification for crack-free laser powder
bed fusion by differential fast scanning calorimetry}, DOI={10.1016/j.matdes.2021.109677},
number={109677}, journal={Materials & Design}, author={Zhuravlev, Evgeny and
Milkereit, Benjamin and Yang, Bin and Heiland, Steffen and Vieth, Pascal and Voigt,
Markus and Schaper, Mirko and Grundmeier, Guido and Schick, Christoph and Kessler,
Olaf}, year={2021} }'
chicago: Zhuravlev, Evgeny, Benjamin Milkereit, Bin Yang, Steffen Heiland, Pascal
Vieth, Markus Voigt, Mirko Schaper, Guido Grundmeier, Christoph Schick, and Olaf
Kessler. “Assessment of AlZnMgCu Alloy Powder Modification for Crack-Free Laser
Powder Bed Fusion by Differential Fast Scanning Calorimetry.” Materials &
Design, 2021. https://doi.org/10.1016/j.matdes.2021.109677.
ieee: 'E. Zhuravlev et al., “Assessment of AlZnMgCu alloy powder modification
for crack-free laser powder bed fusion by differential fast scanning calorimetry,”
Materials & Design, Art. no. 109677, 2021, doi: 10.1016/j.matdes.2021.109677.'
mla: Zhuravlev, Evgeny, et al. “Assessment of AlZnMgCu Alloy Powder Modification
for Crack-Free Laser Powder Bed Fusion by Differential Fast Scanning Calorimetry.”
Materials & Design, 109677, 2021, doi:10.1016/j.matdes.2021.109677.
short: E. Zhuravlev, B. Milkereit, B. Yang, S. Heiland, P. Vieth, M. Voigt, M. Schaper,
G. Grundmeier, C. Schick, O. Kessler, Materials & Design (2021).
date_created: 2021-09-17T08:38:58Z
date_updated: 2022-01-06T06:56:29Z
department:
- _id: '9'
- _id: '158'
- _id: '219'
doi: 10.1016/j.matdes.2021.109677
keyword:
- Aluminium alloy 7075
- Differential fast scanning calorimetry
- Solidification
- Undercooling
- Additive manufacturing
language:
- iso: eng
publication: Materials & Design
publication_identifier:
issn:
- 0264-1275
publication_status: published
status: public
title: Assessment of AlZnMgCu alloy powder modification for crack-free laser powder
bed fusion by differential fast scanning calorimetry
type: journal_article
user_id: '77250'
year: '2021'
...
---
_id: '37579'
abstract:
- lang: ger
text: 'Leichtmetalle mit einem breiten Eigenschaftsspektrum gewährleisten die Realisierung
ressourcenschonender Produkte und ermöglichen die Intensivierung sortenreiner
Kreislaufwirtschaften. Die vorliegende Arbeit untersucht einen wärmeunterstützten
Ansatz zur Erhöhung der Formgebungsgrenzen stark kaltverfestigter AlMg4,5 Blechwerkstoffe
bei gleichzeitiger Beschränkung des Festigkeitsverlustes durch Erholungseffekte.
Experimentelle Untersuchungen stellen eine wissenschaftlich fundierte Erkenntnisbasis
über die werkstofftechnischen Wirkzusammenhänge des untersuchten Prozesses dar.
Gepaart mit an realen Bauteilgeometrien validierten numerischen Simulationsmodellen
legt diese Arbeit einen methodischen Grundstein für die industrielle Umsetzung
des hier untersuchten Blechumformprozesses. Die erzielte mittlere Dehngrenze des
exemplarisch untersuchten Bauteils übersteigt die Dehngrenze eines konventionellen
AlMg4,5 Werkstoffes um 190 %. Mit 320 MPa entspricht sie dem Festigkeitsniveau
des walzharten Blechhalbzeuges im Lieferzustand, ein Wert, der nach dem aktuellen
Stand der Technik auf Bauteilebene ausschließlich mit aushärtbaren AlMgSi Legierungen
darstellbar ist. '
author:
- first_name: Alan Adam
full_name: Camberg, Alan Adam
id: '60544'
last_name: Camberg
citation:
ama: Camberg AA. Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie
durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe.
Vol 2021,52. Shaker Verlag; 2021. doi:10.2370/9783844082715
apa: 'Camberg, A. A. (2021). Festigkeitssteigerung von Aluminiumblechformteilen
der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter
Ausgangswerkstoffe: Vol. 2021,52. Shaker Verlag. https://doi.org/10.2370/9783844082715'
bibtex: '@book{Camberg_2021, series={Schriftenreihe Institut für Leichtbau mit Hybridsystemen},
title={Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch
Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe},
volume={2021,52}, DOI={10.2370/9783844082715},
publisher={Shaker Verlag}, author={Camberg, Alan Adam}, year={2021}, collection={Schriftenreihe
Institut für Leichtbau mit Hybridsystemen} }'
chicago: Camberg, Alan Adam. Festigkeitssteigerung von Aluminiumblechformteilen
der 5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter
Ausgangswerkstoffe. Vol. 2021,52. Schriftenreihe Institut für Leichtbau mit
Hybridsystemen. Shaker Verlag, 2021. https://doi.org/10.2370/9783844082715.
ieee: A. A. Camberg, Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie
durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe,
vol. 2021,52. Shaker Verlag, 2021.
mla: Camberg, Alan Adam. Festigkeitssteigerung von Aluminiumblechformteilen der
5000-Serie durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe.
Shaker Verlag, 2021, doi:10.2370/9783844082715.
short: A.A. Camberg, Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie
durch Erweiterung der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe,
Shaker Verlag, 2021.
date_created: 2023-01-19T11:38:04Z
date_updated: 2023-01-19T11:38:10Z
department:
- _id: '9'
- _id: '149'
- _id: '321'
doi: 10.2370/9783844082715
extern: '1'
keyword:
- Aluminium
- Blechumformung
- AlMg
- Materialmodellierung
- Duktiles Versagen
- Halbwarmumformung
- Automobil
- Leichtbau
- Uni-Alloy
- 5000-Serie
- '5182'
- GISSMO
language:
- iso: ger
page: '230'
publication_identifier:
isbn:
- 978-3-8440-8271-5
publication_status: published
publisher: Shaker Verlag
series_title: Schriftenreihe Institut für Leichtbau mit Hybridsystemen
status: public
supervisor:
- first_name: Thomas
full_name: Tröster, Thomas
id: '553'
last_name: Tröster
title: Festigkeitssteigerung von Aluminiumblechformteilen der 5000-Serie durch Erweiterung
der Formgebungsgrenzen stark kaltverfestigter Ausgangswerkstoffe
type: dissertation
user_id: '15952'
volume: 2021,52
year: '2021'
...
---
_id: '24086'
abstract:
- lang: eng
text: "Laser beam melting (LBM) is an advanced manufacturing technology providing\r\nspecial
features and the possibility to produce complex and individual parts directly\r\nfrom
a CAD model. TiAl6V4 is the most common used titanium alloy particularly\r\nin
biomedical applications. TiAl6Nb7 shows promising improvements especially\r\nregarding
biocompatible properties due to the substitution of the hazardous\r\nvanadium.
This work focuses on the examination of laser beam melted TiAl6Nb7.\r\nFor microstructural
investigation scanning electron microscopy including energydispersive\r\nx-ray
spectroscopy as well as electron backscatter diffraction are utilized.\r\nThe
laser beam melted related acicular microstructure as well as the corresponding\r\nmechanical
properties, which are determined by hardness measurements\r\nand tensile tests,
are investigated. The laser beam melted alloy meets,\r\nexcept of breaking elongation
A, the mechanical demands like ultimate tensile\r\nstrength Rm, yield strength
Rp0.2, Vickers hardness HV of international standard\r\nISO 5832-11. Next steps
contain comparison between TiAl6Nb7 and TiAl6V4 in\r\ndifferent conditions. Further
investigations aim at improving mechanical properties\r\nof TiAl6Nb7 by heat treatments
and assessment of their influence on the microstructure\r\nas well as examination
regarding the corrosive behavior in human bodylike\r\nconditions."
article_type: original
author:
- first_name: Maxwell
full_name: Hein, Maxwell
id: '52771'
last_name: Hein
orcid: 0000-0002-3732-2236
- first_name: Kay-Peter
full_name: Hoyer, Kay-Peter
id: '48411'
last_name: Hoyer
- first_name: Mirko
full_name: Schaper, Mirko
id: '43720'
last_name: Schaper
citation:
ama: Hein M, Hoyer K-P, Schaper M. Additively processed TiAl6Nb7 alloy for biomedical
applications. Materialwissenschaft und Werkstofftechnik. 2021;52:703-716.
doi:10.1002/mawe.202000288
apa: Hein, M., Hoyer, K.-P., & Schaper, M. (2021). Additively processed TiAl6Nb7
alloy for biomedical applications. Materialwissenschaft Und Werkstofftechnik,
52, 703–716. https://doi.org/10.1002/mawe.202000288
bibtex: '@article{Hein_Hoyer_Schaper_2021, title={Additively processed TiAl6Nb7
alloy for biomedical applications}, volume={52}, DOI={10.1002/mawe.202000288},
journal={Materialwissenschaft und Werkstofftechnik}, author={Hein, Maxwell and
Hoyer, Kay-Peter and Schaper, Mirko}, year={2021}, pages={703–716} }'
chicago: 'Hein, Maxwell, Kay-Peter Hoyer, and Mirko Schaper. “Additively Processed
TiAl6Nb7 Alloy for Biomedical Applications.” Materialwissenschaft Und Werkstofftechnik
52 (2021): 703–16. https://doi.org/10.1002/mawe.202000288.'
ieee: 'M. Hein, K.-P. Hoyer, and M. Schaper, “Additively processed TiAl6Nb7 alloy
for biomedical applications,” Materialwissenschaft und Werkstofftechnik,
vol. 52, pp. 703–716, 2021, doi: 10.1002/mawe.202000288.'
mla: Hein, Maxwell, et al. “Additively Processed TiAl6Nb7 Alloy for Biomedical Applications.”
Materialwissenschaft Und Werkstofftechnik, vol. 52, 2021, pp. 703–16, doi:10.1002/mawe.202000288.
short: M. Hein, K.-P. Hoyer, M. Schaper, Materialwissenschaft Und Werkstofftechnik
52 (2021) 703–716.
date_created: 2021-09-09T15:40:08Z
date_updated: 2023-06-01T14:38:03Z
department:
- _id: '158'
doi: 10.1002/mawe.202000288
intvolume: ' 52'
keyword:
- Laser beam melting
- titanium alloy
- TiAl6Nb7
- biomedical engineering
- implants
language:
- iso: eng
page: 703-716
publication: Materialwissenschaft und Werkstofftechnik
publication_identifier:
issn:
- 0933-5137
- 1521-4052
publication_status: published
quality_controlled: '1'
status: public
title: Additively processed TiAl6Nb7 alloy for biomedical applications
type: journal_article
user_id: '43720'
volume: 52
year: '2021'
...