Details
| Original language | English |
|---|---|
| Article number | 480 |
| Journal | Metals |
| Volume | 9 |
| Issue number | 4 |
| Early online date | 25 Apr 2019 |
| Publication status | Published - Apr 2019 |
Abstract
Residual stresses in components are a central issue in almost every manufacturing process, as they influence the performance of the final part. Regarding hot forming processes, there is a great potential for defining a targeted residual stress state, as many adjustment parameters, such as deformation state or temperature profile, are available that influence residual stresses. To ensure appropriate numerical modeling of residual stresses in hot forming processes, comprehensive material characterization and suitable multiscale Finite Element (FE) simulations are required. In this paper, experimental and numerical investigations of thermo-mechanically processed steel alloy 1.3505 (DIN 100Cr6) are presented that serve as a basis for further optimization of numerically modeled residual stresses. For this purpose, cylindrical upsetting tests at high temperature with subsequently cooling of the parts in the media air or water are carried out. Additionally, the process is simulated on the macroscale and compared to the results based on the experimental investigations. Therefore, the experimentally processed specimens are examined regarding the resulting microstructure, distortions, and residual stresses. For the investigation on a smaller scale, a numerical model is set up based on the state-data of the macroscopic simulation and experiments, simulating the transformation of the microstructure using phase-field theory and FE analysis on micro- and meso-scopic level.
Keywords
- Distortions, Fe2-method, Martensite transformation, Microstructure, Multi-phase-field, Multiscale simulation, Residual stresses, Thermo-mechanical forming process, X-ray diffraction
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
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In: Metals, Vol. 9, No. 4, 480, 04.2019.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Experimental and Numerical Investigations of the Development of Residual Stresses in Thermo-Mechanically Processed Cr-Alloyed Steel 1.3505
AU - Behrens, Bernd Arno
AU - Schröder, Jörg
AU - Brands, Dominik
AU - Scheunemann, Lisa
AU - Niekamp, Rainer
AU - Chugreev, Alexander
AU - Sarhil, Mohammad
AU - Uebing, Sonja
AU - Kock, Christoph
N1 - Funding Information: Funded by the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation)-374871564 (BE 1691/223-1, BR 5278/3-1, SCHR 570/33-1) within the priority program SPP 2013. The authors thank Ingo Steinbach and Oleg Shchyglo from ICAMS (Interdisciplinary Center for Advanced Materials Simulation) at the Ruhr-Universit?t Bochum for their scientific support.
PY - 2019/4
Y1 - 2019/4
N2 - Residual stresses in components are a central issue in almost every manufacturing process, as they influence the performance of the final part. Regarding hot forming processes, there is a great potential for defining a targeted residual stress state, as many adjustment parameters, such as deformation state or temperature profile, are available that influence residual stresses. To ensure appropriate numerical modeling of residual stresses in hot forming processes, comprehensive material characterization and suitable multiscale Finite Element (FE) simulations are required. In this paper, experimental and numerical investigations of thermo-mechanically processed steel alloy 1.3505 (DIN 100Cr6) are presented that serve as a basis for further optimization of numerically modeled residual stresses. For this purpose, cylindrical upsetting tests at high temperature with subsequently cooling of the parts in the media air or water are carried out. Additionally, the process is simulated on the macroscale and compared to the results based on the experimental investigations. Therefore, the experimentally processed specimens are examined regarding the resulting microstructure, distortions, and residual stresses. For the investigation on a smaller scale, a numerical model is set up based on the state-data of the macroscopic simulation and experiments, simulating the transformation of the microstructure using phase-field theory and FE analysis on micro- and meso-scopic level.
AB - Residual stresses in components are a central issue in almost every manufacturing process, as they influence the performance of the final part. Regarding hot forming processes, there is a great potential for defining a targeted residual stress state, as many adjustment parameters, such as deformation state or temperature profile, are available that influence residual stresses. To ensure appropriate numerical modeling of residual stresses in hot forming processes, comprehensive material characterization and suitable multiscale Finite Element (FE) simulations are required. In this paper, experimental and numerical investigations of thermo-mechanically processed steel alloy 1.3505 (DIN 100Cr6) are presented that serve as a basis for further optimization of numerically modeled residual stresses. For this purpose, cylindrical upsetting tests at high temperature with subsequently cooling of the parts in the media air or water are carried out. Additionally, the process is simulated on the macroscale and compared to the results based on the experimental investigations. Therefore, the experimentally processed specimens are examined regarding the resulting microstructure, distortions, and residual stresses. For the investigation on a smaller scale, a numerical model is set up based on the state-data of the macroscopic simulation and experiments, simulating the transformation of the microstructure using phase-field theory and FE analysis on micro- and meso-scopic level.
KW - Distortions
KW - Fe2-method
KW - Martensite transformation
KW - Microstructure
KW - Multi-phase-field
KW - Multiscale simulation
KW - Residual stresses
KW - Thermo-mechanical forming process
KW - X-ray diffraction
UR - http://www.scopus.com/inward/record.url?scp=85073810090&partnerID=8YFLogxK
U2 - 10.3390/met9040480
DO - 10.3390/met9040480
M3 - Article
AN - SCOPUS:85073810090
VL - 9
JO - Metals
JF - Metals
SN - 2075-4701
IS - 4
M1 - 480
ER -