Mechanical Behavior of TWIP steels
Twinning Induced Plasticity (TWIP) steels are class of austenitic steels with mechanically induced twin deformations.TWIP steels have highly desirable properties for automotive applications exhibiting both high strength and large ductility.The composition of TWIP steels is mainly a high amount of Mn, from 20-35 wt.% with alloying additions that may include <3% Al, <3% Si, <1.5% C and some other microalloying elements. TWIP steels are face centered cubic (fcc) with a low stacking fault energy (SFE) that promotes deformation twinning. The twinning increases the strength via additional hardening and extends ductility. The strength and ductility of these high Mn TWIP steels are considerably greater than all other classes of steels for automotive applications as illustrated in Fig. 1.
Stress-strain plots for TWIP steels
Fatigue Behavior of TWIP steels
- ↑ 1.0 1.1 1.2 Neu, R. W. "Performance and Characterization of TWIP Steels for Automotive Applications." Materials Performance and Characterization 2.1 (2013): 244-284.
- ↑ D. Barbier, N. Gey, S. Allain, N. Bozzolo, M. Humbert, Analysis of the tensile behavior of a TWIP steel based on the texture and microstructure evolutions, Materials Science and Engineering: A, Volume 500, Issues 1–2, 25 January 2009, Pages 196-206, ISSN 0921-5093, http://dx.doi.org/10.1016/j.msea.2008.09.031.
- ↑ 3.0 3.1 3.2 3.3 Chen, Liqing, Yang Zhao, and Xiaomei Qin. "Some aspects of high manganese twinning-induced plasticity (TWIP) steel, a review." Acta Metallurgica Sinica (English Letters) 26.1 (2013): 1-15.
- ↑ 4.0 4.1 4.2 De Cooman, B. C., Jinkyung Kim, and Kwang-geun Chin. High Mn TWIP steels for automotive applications. INTECH Open Access Publisher, 2011.
- ↑ J. Hajkazemi, A. Zarei-Hanzaki, M. Sabet, S. Khoddam, Double-hit compression behavior of TWIP steels, Materials Science and Engineering: A, Volume 530, 15 December 2011, Pages 233-238, ISSN 0921-5093, http://dx.doi.org/10.1016/j.msea.2011.09.080. (http://www.sciencedirect.com/science/article/pii/S0921509311010513)
- ↑ 6.0 6.1 A.S. Hamada, L.P. Karjalainen, J. Puustinen, Fatigue behavior of high-Mn TWIP steels, Materials Science and Engineering: A, Volume 517, Issues 1–2, 20 August 2009, Pages 68-77, ISSN 0921-5093, http://dx.doi.org/10.1016/j.msea.2009.03.039.(http://www.sciencedirect.com/science/article/pii/S0921509309003633)
- ↑ A.S. Hamada, L.P. Karjalainen, High-cycle fatigue behavior of ultrafine-grained austenitic stainless and TWIP steels, Materials Science and Engineering: A, Volume 527, Issues 21–22, 20 August 2010, Pages 5715-5722, ISSN 0921-5093, http://dx.doi.org/10.1016/j.msea.2010.05.035.