Influence of various material design parameters on deformation behaviors of TRIP steels

K. S. Choi; A. Soulami; W. N. Liu; X. Sun; M. A. Khaleel

doi:10.1016/j.commatsci.2010.10.002

Influence of various material design parameters on deformation behaviors of TRIP steels

K. S. Choi, A. Soulami, W. N. Liu, X. Sun, M. A. Khaleel

Research output: Contribution to journal › Article › peer-review

47 Scopus citations

Abstract

In this paper, the microstructure-based finite element modeling method is used as a virtual design tool in investigating the respective influence of various material design parameters on the deformation behaviors of transformation-induced plasticity (TRIP) steels. For this purpose, the separate effects of several different material design parameters, such as the volume fraction and stability of austenite phase and the strengths of the constituent phases, on the ultimate tensile strength (UTS) and ductility/formability of TRIP steels are quantitatively examined using different representative volume elements (RVEs) representing different TRIP steels. The computational results suggest that higher austenite stability is helpful in enhancing the ductility and formability of TRIP steels by delaying the martensitic transformation to a later stage, whereas increase of austenite volume fraction and/or ferrite strength alone is not beneficial to improve the performance of TRIP steels. The results also indicate that various material design parameters must be adjusted concurrently to develop high-performance TRIP steels. The information based on investigations in this paper can help guide the development of high-performance TRIP steels by providing the microstructure level deformation mechanisms.

Original language	English
Pages (from-to)	720-730
Number of pages	11
Journal	Computational Materials Science
Volume	50
Issue number	2
DOIs	https://doi.org/10.1016/j.commatsci.2010.10.002
State	Published - Dec 2010
Externally published	Yes

Funding

Pacific Northwest National Laboratory is operated by Battelle Memorial Institute for the US Department of Energy under Contract No. DE-AC05-76RL01830. This work was funded by the Department of Energy Office of FreedomCar and Vehicle Technologies under the Automotive Lightweighting Materials Program managed by Mr. William Joost. The authors would also like to acknowledge the help of Mr. John Serkowski and Mr. Tao Fu for their help in generating the finite element mesh.

Funders	Funder number
Department of Energy Office of FreedomCAR
U.S. Department of Energy	DE-AC05-76RL01830
Battelle

Keywords

Austenite stability
Austenite volume fraction
Finite element analysis (FEA)
Material design parameters
Microstructure
TRIP steels

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10.1016/j.commatsci.2010.10.002

Cite this

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title = "Influence of various material design parameters on deformation behaviors of TRIP steels",

abstract = "In this paper, the microstructure-based finite element modeling method is used as a virtual design tool in investigating the respective influence of various material design parameters on the deformation behaviors of transformation-induced plasticity (TRIP) steels. For this purpose, the separate effects of several different material design parameters, such as the volume fraction and stability of austenite phase and the strengths of the constituent phases, on the ultimate tensile strength (UTS) and ductility/formability of TRIP steels are quantitatively examined using different representative volume elements (RVEs) representing different TRIP steels. The computational results suggest that higher austenite stability is helpful in enhancing the ductility and formability of TRIP steels by delaying the martensitic transformation to a later stage, whereas increase of austenite volume fraction and/or ferrite strength alone is not beneficial to improve the performance of TRIP steels. The results also indicate that various material design parameters must be adjusted concurrently to develop high-performance TRIP steels. The information based on investigations in this paper can help guide the development of high-performance TRIP steels by providing the microstructure level deformation mechanisms.",

keywords = "Austenite stability, Austenite volume fraction, Finite element analysis (FEA), Material design parameters, Microstructure, TRIP steels",

author = "Choi, {K. S.} and A. Soulami and Liu, {W. N.} and X. Sun and Khaleel, {M. A.}",

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AU - Soulami, A.

AU - Liu, W. N.

AU - Sun, X.

AU - Khaleel, M. A.

PY - 2010/12

Y1 - 2010/12

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AB - In this paper, the microstructure-based finite element modeling method is used as a virtual design tool in investigating the respective influence of various material design parameters on the deformation behaviors of transformation-induced plasticity (TRIP) steels. For this purpose, the separate effects of several different material design parameters, such as the volume fraction and stability of austenite phase and the strengths of the constituent phases, on the ultimate tensile strength (UTS) and ductility/formability of TRIP steels are quantitatively examined using different representative volume elements (RVEs) representing different TRIP steels. The computational results suggest that higher austenite stability is helpful in enhancing the ductility and formability of TRIP steels by delaying the martensitic transformation to a later stage, whereas increase of austenite volume fraction and/or ferrite strength alone is not beneficial to improve the performance of TRIP steels. The results also indicate that various material design parameters must be adjusted concurrently to develop high-performance TRIP steels. The information based on investigations in this paper can help guide the development of high-performance TRIP steels by providing the microstructure level deformation mechanisms.

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KW - Austenite volume fraction

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Influence of various material design parameters on deformation behaviors of TRIP steels

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