---
_id: '34000'
abstract:
- lang: eng
text: "Abstract\r\n This paper presents
the characterization of the microstructure evolution during flow forming of austenitic
stainless steel AISI 304L. Due to plastic deformation of metastable austenitic
steel, phase transformation from γ-austenite into α’-martensite occurs. This is
initiated by the formation of shear bands as product of the external stresses.
By means of coupled microscopic and micromagnetic investigations, a characterization
of the microstructure was carried out. In particular, this study shows the distribution
of the strain-induced α’-martensite and its influence on material properties like
hardness at different depths. The microstructural analyses by means of electron
backscattered diffraction (EBSD) technique, evidence a higher amount of α’-martensite
(ca. 23 %) close to the outer specimen surface, where the plastic deformation
and the direct contact with the forming tool take place. In the middle area (ca.
1.5 mm depth from the outer surface), the portion of transformed α’-martensite
drops to 7 % and in the inner surface to 2 %. These results are well correlated
with microhardness and micromagnetic measurements at different depths. EBSD and
atomic force microscopy (AFM) were used to make a detailed characterization of
the topography and degree of deformation of the shear bands. Likewise, the mechanisms
of nucleation of α’-martensite were discussed. This research contributes to the
development of micromagnetic sensors to monitor the evolution of properties during
flow forming. This makes them more suitable for closed-loop property control,
which offers possibilities for an application-oriented and more efficient production."
author:
- first_name: Julian
full_name: Rozo Vasquez, Julian
last_name: Rozo Vasquez
- first_name: Hanigah
full_name: Kanagarajah, Hanigah
last_name: Kanagarajah
- first_name: Bahman
full_name: Arian, Bahman
id: '36287'
last_name: Arian
- first_name: Lukas
full_name: Kersting, Lukas
last_name: Kersting
- first_name: Werner
full_name: Homberg, Werner
id: '233'
last_name: Homberg
- first_name: Ansgar
full_name: Trächtler, Ansgar
id: '552'
last_name: Trächtler
- first_name: Frank
full_name: Walther, Frank
last_name: Walther
citation:
ama: Rozo Vasquez J, Kanagarajah H, Arian B, et al. Coupled microscopic and micromagnetic
depth-specific analysis of plastic deformation and phase transformation of metastable
austenitic steel AISI 304L by flow forming. Practical Metallography. 2022;59(11):660-675.
doi:10.1515/pm-2022-0064
apa: Rozo Vasquez, J., Kanagarajah, H., Arian, B., Kersting, L., Homberg, W., Trächtler,
A., & Walther, F. (2022). Coupled microscopic and micromagnetic depth-specific
analysis of plastic deformation and phase transformation of metastable austenitic
steel AISI 304L by flow forming. Practical Metallography, 59(11),
660–675. https://doi.org/10.1515/pm-2022-0064
bibtex: '@article{Rozo Vasquez_Kanagarajah_Arian_Kersting_Homberg_Trächtler_Walther_2022,
title={Coupled microscopic and micromagnetic depth-specific analysis of plastic
deformation and phase transformation of metastable austenitic steel AISI 304L
by flow forming}, volume={59}, DOI={10.1515/pm-2022-0064},
number={11}, journal={Practical Metallography}, publisher={Walter de Gruyter GmbH},
author={Rozo Vasquez, Julian and Kanagarajah, Hanigah and Arian, Bahman and Kersting,
Lukas and Homberg, Werner and Trächtler, Ansgar and Walther, Frank}, year={2022},
pages={660–675} }'
chicago: 'Rozo Vasquez, Julian, Hanigah Kanagarajah, Bahman Arian, Lukas Kersting,
Werner Homberg, Ansgar Trächtler, and Frank Walther. “Coupled Microscopic and
Micromagnetic Depth-Specific Analysis of Plastic Deformation and Phase Transformation
of Metastable Austenitic Steel AISI 304L by Flow Forming.” Practical Metallography
59, no. 11 (2022): 660–75. https://doi.org/10.1515/pm-2022-0064.'
ieee: 'J. Rozo Vasquez et al., “Coupled microscopic and micromagnetic depth-specific
analysis of plastic deformation and phase transformation of metastable austenitic
steel AISI 304L by flow forming,” Practical Metallography, vol. 59, no.
11, pp. 660–675, 2022, doi: 10.1515/pm-2022-0064.'
mla: Rozo Vasquez, Julian, et al. “Coupled Microscopic and Micromagnetic Depth-Specific
Analysis of Plastic Deformation and Phase Transformation of Metastable Austenitic
Steel AISI 304L by Flow Forming.” Practical Metallography, vol. 59, no.
11, Walter de Gruyter GmbH, 2022, pp. 660–75, doi:10.1515/pm-2022-0064.
short: J. Rozo Vasquez, H. Kanagarajah, B. Arian, L. Kersting, W. Homberg, A. Trächtler,
F. Walther, Practical Metallography 59 (2022) 660–675.
date_created: 2022-11-04T08:29:21Z
date_updated: 2023-05-02T08:19:27Z
department:
- _id: '156'
- _id: '153'
- _id: '241'
doi: 10.1515/pm-2022-0064
intvolume: ' 59'
issue: '11'
keyword:
- Metals and Alloys
- Mechanics of Materials
- Condensed Matter Physics
- Electronic
- Optical and Magnetic Materials
language:
- iso: eng
page: 660-675
publication: Practical Metallography
publication_identifier:
issn:
- 2195-8599
- 0032-678X
publication_status: published
publisher: Walter de Gruyter GmbH
quality_controlled: '1'
status: public
title: Coupled microscopic and micromagnetic depth-specific analysis of plastic deformation
and phase transformation of metastable austenitic steel AISI 304L by flow forming
type: journal_article
user_id: '36287'
volume: 59
year: '2022'
...