Effect of Deformation Temperature on the Mechanical Behavior of a New TRIP/TWIP Steel Containing 21% Manganese

Document Type: Research Paper

Authors

School of Metallurgy and Materials Engineering, College of Engineering, University of Tehran, Tehran, Iran

Abstract

In recent years, TRIP/TWIP steels have been the focus of great attention thanks due to their excellent tensile strength-ductility combination. The compression tests were performed at different temperatures from 25 to1000°C to study the mechanical behavior of advanced austenitic steel with 21% manganese plus bearing Ti. The results indicated that the plastic deformation is controlled by deformation-induced martensite and mechanical twinning from 25 to 100°C. However, at temperatures 200 to 1000°C the deformation twinning was merely observed. The occurrence of mechanical twinning at such high temperatures is a first-time observation in high manganese austenitic steels. Such mechanical twins led to grain refinement via grain partitioning.

Keywords


[1] G. Dini, A. Najafizadeh, R. Ueji and S. M. Monir-
Vaghefi: Mater. Lett., 64(2010), 15.
[2] G. Frommeyer, U. Brux and P. Neumann: ISIJ Int.,
43(2003), 438.
[3] O. Grassel, L. Kruger, G. Frommeyer and L.W.
Meyer: Int. J. Plast., 16(2000), 1391.
[4] F. D. Fischer, G. Reisner, E. Werner, K. Tanaka and
G. Cailletaudd: Int. J. Plast., 16(2000), 723.
[5] M. Eskandari, A. Najafizadeh, A. Kermanpur and
M. Karimi: Mater. Des., 30(2009), 3869.
[6] A. Kovalev, A. Jahn, A. Wei and P.R. Scheller:
Steel Res. Int., 82(2011), 45.
[7] M. Eskandari, A. Kermanpur and A. Najafizadeh:
Mater. Lett., 63(2009), 1442.
[8] M. Eskandari, A. Najafizadeh and A. Kermanpur:
Mater. Sci. Eng. A, 46(2009), 46.
[9] M. Eskandari, A. Kermanpur and A. Najafizadeh:
Metall. Trans. A, 40(2009), 2241.
[10] A. Zarei-Hanzaki, P. D. Hodgson and S. Yue: ISIJ
Int., 35 (1995), 79.
[11] A. Zarei-Hanzaki, P. D. Hodgson and S. Yue:
Metall. Trans. A, 28(1997), 2405.
[12] D. Hao, D. Hua, O. Chun-lin, T. Zhang-you, Z.
Ian-mirr Z and Y. Ping: Iron Steel Res. Int., 18(2011), 36.
[13] D. Hao, D. Hua, S. Dan and T. Zhengyou: Mater.
Sci. Eng. A, 528(2011), 868.
[14] X. Zhanga, T. Sawaguchi, K. Ogawa, F. Yin and
X. Zhao: Mater. Sci. Eng. A, 527(2010), 432.
[15] G.G. Yapici, I. Karaman and Z. Luo: Acta Mater.,
54(2006), 3755.
[16] N. E. Paton, and W.A. Backofen: Metall. Trans
A., 1(1970), 2841.
[17] M. H. Yoo: Metall. Trans. A, 12(1981), 409.
[18] M. J. Marcinkowski and D. S. Miller: Philos.
Mag., 6(1961), 871.
[19] S. M. Copley and B. H. Kear: Acta Metall.,
16(1968), 227.
[20] D. Goodchild, W. T. Roberts and D. V. Wilson:
Acta Metall., 18(1970), 1137.
[21] M. Fujita, Y. Kaneko, A. Nohara, H. Saka, R.
Zauter and H. Mughrabi: ISIJ Int., 34(1994), 697.
[22] G. G. Yapici, I. Karaman, Z. P Luo, H. J. Maier
and Y. I. Chumlyakov: J. Mater. Res., 19(2004), 2268.
[23] I. Karaman, H. Sehitoglu, H. J. Maier and Y. I.
Chumlyakov: Acta Mater., 49(2001), 3919.