Effects of retained austenite stability and volume fraction on deformation behaviors of TRIP steels

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

In this paper, the separate effects of austenite stability and its volume fraction on the deformation behaviors of transformation-induced plasticity (TRIP) steels are investigated based on the microstructure-based finite element modeling method. The effects of austenite stability on the strength, ductility and formability of TRIP steels are first examined based on the microstructure of a commercial TRIP 800 steel. Then, the separate effects of the austenite volume fraction on the overall deformation behaviors of TRIP steels are examined based on the various representative volume elements (RVEs). The computational results suggest that the higher austenite stability is helpful to increase the ductility and formability, but not the UTS. However, the increase of austenite volume fraction alone is not helpful in improving the performance of TRIP steels. This may indicate that various other material factors should also be concurrently adjusted during thermo-mechanical manufacturing process in a way to increase the performance of TRIP steels, which needs further investigation.

Original languageEnglish
Title of host publicationAIST Steel Properties and Applications Conference Proceedings - Combined with MS and T'10, Materials Science and Technology 2010
Pages405-412
Number of pages8
Publication statusPublished - 30 Nov 2010
Externally publishedYes
EventAIST Steel Properties and Applications Conference, Held in Conjunction with the Materials Science and Technology 2010 Conference and Exhibition, MS and T'10 - Houston, TX, United States
Duration: 17 Oct 201021 Oct 2010

Other

OtherAIST Steel Properties and Applications Conference, Held in Conjunction with the Materials Science and Technology 2010 Conference and Exhibition, MS and T'10
CountryUnited States
CityHouston, TX
Period17/10/1021/10/10

Fingerprint

Steel
Austenite
Plasticity
Volume fraction
Formability
Ductility
Microstructure

Keywords

  • Austenite stability
  • Finite element analysis (FEA)
  • Microstructure
  • TRIP steels

ASJC Scopus subject areas

  • Metals and Alloys

Cite this

Choi, K. S., Soulami, A., Liu, W. N., Sun, X., & Khaleel, M. A. (2010). Effects of retained austenite stability and volume fraction on deformation behaviors of TRIP steels. In AIST Steel Properties and Applications Conference Proceedings - Combined with MS and T'10, Materials Science and Technology 2010 (pp. 405-412)

Effects of retained austenite stability and volume fraction on deformation behaviors of TRIP steels. / Choi, K. S.; Soulami, A.; Liu, W. N.; Sun, X.; Khaleel, M. A.

AIST Steel Properties and Applications Conference Proceedings - Combined with MS and T'10, Materials Science and Technology 2010. 2010. p. 405-412.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Choi, KS, Soulami, A, Liu, WN, Sun, X & Khaleel, MA 2010, Effects of retained austenite stability and volume fraction on deformation behaviors of TRIP steels. in AIST Steel Properties and Applications Conference Proceedings - Combined with MS and T'10, Materials Science and Technology 2010. pp. 405-412, AIST Steel Properties and Applications Conference, Held in Conjunction with the Materials Science and Technology 2010 Conference and Exhibition, MS and T'10, Houston, TX, United States, 17/10/10.
Choi KS, Soulami A, Liu WN, Sun X, Khaleel MA. Effects of retained austenite stability and volume fraction on deformation behaviors of TRIP steels. In AIST Steel Properties and Applications Conference Proceedings - Combined with MS and T'10, Materials Science and Technology 2010. 2010. p. 405-412
Choi, K. S. ; Soulami, A. ; Liu, W. N. ; Sun, X. ; Khaleel, M. A. / Effects of retained austenite stability and volume fraction on deformation behaviors of TRIP steels. AIST Steel Properties and Applications Conference Proceedings - Combined with MS and T'10, Materials Science and Technology 2010. 2010. pp. 405-412
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