---
_id: '37200'
abstract:
- lang: eng
  text: <jats:p>(1) This work answers the question of whether and to what extent there
    is a significant difference in mechanical properties when different additive manufacturing
    processes are applied to the material 1.2709. The Laser-Powder-Bed-Fusion (L-PBF)
    and Laser-Metal-Deposition (LMD) processes are considered, as they differ fundamentally
    in the way a part is manufactured. (2) Known process parameters for low-porosity
    parts were used to fabricate tensile strength specimens. Half of the specimens
    were heat-treated, and all specimens were tested for mechanical properties in
    a quasi-static tensile test. In addition, the material hardness was determined.
    (3) It was found that, firstly, heat treatment resulted in a sharp increase in
    mechanical properties such as hardness, elastic modulus, yield strength and ultimate
    strength. In addition to the increase in these properties, the elongation at break
    also decreases significantly after heat treatment. The choice of process, on the
    other hand, does not give either process a clear advantage in terms of mechanical
    properties but shows that it is necessary to consider the essential mechanical
    properties for a desired application.</jats:p>
article_number: '157'
article_type: original
author:
- first_name: Stefan
  full_name: Gnaase, Stefan
  id: '25730'
  last_name: Gnaase
- first_name: Dennis
  full_name: Niggemeyer, Dennis
  id: '77214'
  last_name: Niggemeyer
- first_name: Dennis
  full_name: Lehnert, Dennis
  id: '90491'
  last_name: Lehnert
- first_name: Christian
  full_name: Bödger, Christian
  id: '93904'
  last_name: Bödger
- first_name: Thomas
  full_name: Tröster, Thomas
  id: '553'
  last_name: Tröster
citation:
  ama: Gnaase S, Niggemeyer D, Lehnert D, Bödger C, Tröster T. Comparative Study of
    the Influence of Heat Treatment and Additive Manufacturing Process (LMD &#38;amp;
    L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709. <i>Crystals</i>.
    2023;13(2). doi:<a href="https://doi.org/10.3390/cryst13020157">10.3390/cryst13020157</a>
  apa: Gnaase, S., Niggemeyer, D., Lehnert, D., Bödger, C., &#38; Tröster, T. (2023).
    Comparative Study of the Influence of Heat Treatment and Additive Manufacturing
    Process (LMD &#38;amp; L-PBF) on the Mechanical Properties of Specimens Manufactured
    from 1.2709. <i>Crystals</i>, <i>13</i>(2), Article 157. <a href="https://doi.org/10.3390/cryst13020157">https://doi.org/10.3390/cryst13020157</a>
  bibtex: '@article{Gnaase_Niggemeyer_Lehnert_Bödger_Tröster_2023, title={Comparative
    Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD
    &#38;amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709},
    volume={13}, DOI={<a href="https://doi.org/10.3390/cryst13020157">10.3390/cryst13020157</a>},
    number={2157}, journal={Crystals}, publisher={MDPI AG}, author={Gnaase, Stefan
    and Niggemeyer, Dennis and Lehnert, Dennis and Bödger, Christian and Tröster,
    Thomas}, year={2023} }'
  chicago: Gnaase, Stefan, Dennis Niggemeyer, Dennis Lehnert, Christian Bödger, and
    Thomas Tröster. “Comparative Study of the Influence of Heat Treatment and Additive
    Manufacturing Process (LMD &#38;amp; L-PBF) on the Mechanical Properties of Specimens
    Manufactured from 1.2709.” <i>Crystals</i> 13, no. 2 (2023). <a href="https://doi.org/10.3390/cryst13020157">https://doi.org/10.3390/cryst13020157</a>.
  ieee: 'S. Gnaase, D. Niggemeyer, D. Lehnert, C. Bödger, and T. Tröster, “Comparative
    Study of the Influence of Heat Treatment and Additive Manufacturing Process (LMD
    &#38;amp; L-PBF) on the Mechanical Properties of Specimens Manufactured from 1.2709,”
    <i>Crystals</i>, vol. 13, no. 2, Art. no. 157, 2023, doi: <a href="https://doi.org/10.3390/cryst13020157">10.3390/cryst13020157</a>.'
  mla: Gnaase, Stefan, et al. “Comparative Study of the Influence of Heat Treatment
    and Additive Manufacturing Process (LMD &#38;amp; L-PBF) on the Mechanical Properties
    of Specimens Manufactured from 1.2709.” <i>Crystals</i>, vol. 13, no. 2, 157,
    MDPI AG, 2023, doi:<a href="https://doi.org/10.3390/cryst13020157">10.3390/cryst13020157</a>.
  short: S. Gnaase, D. Niggemeyer, D. Lehnert, C. Bödger, T. Tröster, Crystals 13
    (2023).
date_created: 2023-01-18T05:44:59Z
date_updated: 2025-03-18T12:45:57Z
ddc:
- '670'
department:
- _id: '149'
- _id: '9'
- _id: '321'
doi: 10.3390/cryst13020157
file:
- access_level: closed
  content_type: application/pdf
  creator: cboedger
  date_created: 2024-11-22T15:55:07Z
  date_updated: 2024-11-22T15:55:07Z
  file_id: '57334'
  file_name: crystals-13-00157.pdf
  file_size: 5838834
  relation: main_file
  success: 1
file_date_updated: 2024-11-22T15:55:07Z
intvolume: '        13'
issue: '2'
keyword:
- Inorganic Chemistry
- Condensed Matter Physics
- General Materials Science
- General Chemical Engineering
language:
- iso: eng
publication: Crystals
publication_identifier:
  issn:
  - 2073-4352
publication_status: published
publisher: MDPI AG
quality_controlled: '1'
status: public
title: Comparative Study of the Influence of Heat Treatment and Additive Manufacturing
  Process (LMD &amp; L-PBF) on the Mechanical Properties of Specimens Manufactured
  from 1.2709
type: journal_article
user_id: '90491'
volume: 13
year: '2023'
...