This paper presents a double-slip/double-twin polycrystal plasticity model using finite element solution to investigate the kinetics of deformation twinning of medium manganese (Mn) twinning-induced plasticity (TWIP) steels. Empirical equations are employed to estimate the stacking fault energy (SFE) of TWIP steels and the critical resolved shear stress (CRSS) for dislocation slip and deformation twinning, respectively. The results suggest that the evolution of twinning in Fe–xMn–1.4Al–0.6 C (x = 11.5, 13.5, 15.5, 17.5, and 19.5 mass%) TWIP steels, and its relation to the Mn content, can explain the effect of Mn on mechanical properties. By comparing the double-slip/double-twin model to a double-slip model, the predicted results essentially reveal that the interaction behavior between dislocation slip and deformation twinning can lead to an additional work hardening. Also, numerical simulations are carried out to study the influence of boundary conditions on deformation behavior and twin formation. The nucleation and growth of twinning are found to depend on internal properties (e.g., mismatch orientation of grains and stress redistribution) as well as on external constraints (e.g., the applied boundary conditions) of the material.
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April 2015
Research-Article
Effects of Mn Content on the Deformation Behavior of Fe–Mn–Al–C TWIP Steels—A Computational Study
Y. Y. Wang,
Y. Y. Wang
Key Laboratory for Anisotropy
and Texture of Materials,
and Texture of Materials,
Northeastern University
,Shenyang 110819
, China
;Computational Science
and Mathematics Division,
and Mathematics Division,
Pacific Northwest National Laboratory
,Richland, WA 99352
Search for other works by this author on:
X. Sun,
X. Sun
1
Computational Science
and Mathematics Division,
e-mail: xin.sun@pnnl.gov
and Mathematics Division,
Pacific Northwest National Laboratory
,Richland, WA 99352
e-mail: xin.sun@pnnl.gov
1Corresponding author.
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Y. D. Wang,
Y. D. Wang
Key Laboratory for Anisotropy
and Texture of Materials,
and Texture of Materials,
Northeastern University
,Shenyang 110819
, China
;State Key Laboratory for Advanced Metals
and Materials and the Collaborative
Innovation Center of Steel Technology,
and Materials and the Collaborative
Innovation Center of Steel Technology,
University of Science and Technology Beijing
,Beijing 100083
, China
Search for other works by this author on:
H. M. Zbib
H. M. Zbib
School of Mechanical and Materials Engineering,
Washington State University
,Pullman, WA 99164
Search for other works by this author on:
Y. Y. Wang
Key Laboratory for Anisotropy
and Texture of Materials,
and Texture of Materials,
Northeastern University
,Shenyang 110819
, China
;Computational Science
and Mathematics Division,
and Mathematics Division,
Pacific Northwest National Laboratory
,Richland, WA 99352
X. Sun
Computational Science
and Mathematics Division,
e-mail: xin.sun@pnnl.gov
and Mathematics Division,
Pacific Northwest National Laboratory
,Richland, WA 99352
e-mail: xin.sun@pnnl.gov
Y. D. Wang
Key Laboratory for Anisotropy
and Texture of Materials,
and Texture of Materials,
Northeastern University
,Shenyang 110819
, China
;State Key Laboratory for Advanced Metals
and Materials and the Collaborative
Innovation Center of Steel Technology,
and Materials and the Collaborative
Innovation Center of Steel Technology,
University of Science and Technology Beijing
,Beijing 100083
, China
H. M. Zbib
School of Mechanical and Materials Engineering,
Washington State University
,Pullman, WA 99164
1Corresponding author.
Contributed by the Materials Division of ASME for publication in the JOURNAL OF ENGINEERING MATERIALS AND TECHNOLOGY. Manuscript received August 20, 2014; final manuscript received October 21, 2014; published online December 3, 2014. Assoc. Editor: Curt Bronkhorst.
J. Eng. Mater. Technol. Apr 2015, 137(2): 021001 (9 pages)
Published Online: April 1, 2015
Article history
Received:
August 20, 2014
Revision Received:
October 21, 2014
Online:
December 3, 2014
Citation
Wang, Y. Y., Sun, X., Wang, Y. D., and Zbib, H. M. (April 1, 2015). "Effects of Mn Content on the Deformation Behavior of Fe–Mn–Al–C TWIP Steels—A Computational Study." ASME. J. Eng. Mater. Technol. April 2015; 137(2): 021001. https://doi.org/10.1115/1.4029041
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