Details
| Original language | English |
|---|---|
| Pages (from-to) | 258-271 |
| Number of pages | 14 |
| Journal | Materials Science and Engineering A |
| Volume | 485 |
| Issue number | 1-2 |
| Publication status | Published - 25 Jun 2008 |
| Externally published | Yes |
Abstract
A visco-plastic self-consistent model was modified to account for strain hardening in steels with pearlitic and bainitic microstructures. Occurrence of slip and the contribution of secondary phases in body-centered cubic steels to the strengthening were simulated for tension, compression and shear loadings. The initial texture and texture evolution at larger strains for bcc polycrystalline steels with intrinsic barriers to dislocation motion were studied under quasi-static conditions. The crystallographic texture of rails undergoing large shear strains was closely examined and compared to the simulations. The results clearly demonstrate that the method has the capability to predict texture evolution in deformed rails. The methodology offers opportunities for improved materials characterization of various steel microstructures.
Keywords
- Anisotropic material, Constitutive behavior, Crystal plasticity, Mechanical testing, Visco-plastic self-consistent algorithm
ASJC Scopus subject areas
- Materials Science(all)
- General Materials Science
- Physics and Astronomy(all)
- Condensed Matter Physics
- Engineering(all)
- Mechanics of Materials
- Engineering(all)
- Mechanical Engineering
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In: Materials Science and Engineering A, Vol. 485, No. 1-2, 25.06.2008, p. 258-271.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - On the incorporation of length scales associated with pearlitic and bainitic microstructures into a visco-plastic self-consistent model
AU - Canadinc, D.
AU - Sehitoglu, H.
AU - Maier, H. J.
AU - Kurath, P.
N1 - Funding Information: This work was funded by the Association of American Railroads (AAR)/Transportation Technology Center Inc. (TTCI) and the Federal Railway Administration (FRA), and partially supported by NSF DMR 03-13489. The German part of the study was supported by Deutsche Forschungsgemeinschaft (DFG) within the Transregional Collaborative Research Center TRR30. Mr. Joe Kristan and Mr. David Davis of AAR/TTCI are thanked for their support and assistance. The authors are grateful to Dr. Carlos Tomé for kindly offering the Code VPSC Version 5.0 to be used in the modeling effort presented in this paper.
PY - 2008/6/25
Y1 - 2008/6/25
N2 - A visco-plastic self-consistent model was modified to account for strain hardening in steels with pearlitic and bainitic microstructures. Occurrence of slip and the contribution of secondary phases in body-centered cubic steels to the strengthening were simulated for tension, compression and shear loadings. The initial texture and texture evolution at larger strains for bcc polycrystalline steels with intrinsic barriers to dislocation motion were studied under quasi-static conditions. The crystallographic texture of rails undergoing large shear strains was closely examined and compared to the simulations. The results clearly demonstrate that the method has the capability to predict texture evolution in deformed rails. The methodology offers opportunities for improved materials characterization of various steel microstructures.
AB - A visco-plastic self-consistent model was modified to account for strain hardening in steels with pearlitic and bainitic microstructures. Occurrence of slip and the contribution of secondary phases in body-centered cubic steels to the strengthening were simulated for tension, compression and shear loadings. The initial texture and texture evolution at larger strains for bcc polycrystalline steels with intrinsic barriers to dislocation motion were studied under quasi-static conditions. The crystallographic texture of rails undergoing large shear strains was closely examined and compared to the simulations. The results clearly demonstrate that the method has the capability to predict texture evolution in deformed rails. The methodology offers opportunities for improved materials characterization of various steel microstructures.
KW - Anisotropic material
KW - Constitutive behavior
KW - Crystal plasticity
KW - Mechanical testing
KW - Visco-plastic self-consistent algorithm
UR - http://www.scopus.com/inward/record.url?scp=42149089357&partnerID=8YFLogxK
U2 - 10.1016/j.msea.2007.08.049
DO - 10.1016/j.msea.2007.08.049
M3 - Article
AN - SCOPUS:42149089357
VL - 485
SP - 258
EP - 271
JO - Materials Science and Engineering A
JF - Materials Science and Engineering A
SN - 0921-5093
IS - 1-2
ER -