Internal Friction on the Bake-Hardening Behavior of 0.11C-1.67Mn-1.19Si TRIP Steel

J Mater Sci Technol ›› 2009, Vol. 25 ›› Issue (01): 141-144.

• Letters • Previous Articles

Internal Friction on the Bake-Hardening Behavior of 0.11C-1.67Mn-1.19Si TRIP Steel

Renyu Fu^1)†, Yu Su^1;2), Ping Ye³⁾, Xicheng Wei¹⁾, Lin Li¹⁾ and Jicheng Zhang⁴⁾

1) School of Materials Science and Engineering, Shanghai University, Shanghai 200072, China
2) Shanghai University of Engineering Science, Shanghai 200336, China
3) Automotive Engineering Academy of SAIC Motor Co., Ltd., Shanghai 201206, China
4) Shanghai Baosteel Plates Co., Ltd., Shanghai 201900, China

Received:2007-06-25 Online:2009-01-28 Published:2009-10-10
Contact: Renyu Fu

Abstract

Abstract:

The bake-hardening (BH) values and the "internal friction-temperature" spectrums were studied for the baked 0.11C-1.67Mn-1.19Si TRIP (transformation induced plasticity) specimens with 0%, 2% and 6% prestrain. Results show that the experimental TRIP steel deserves good bake-hardening ability and Cottrell atmosphere is the reason for its bake hardening characteristic. It is also concluded that both the number and the saturation degree of Cottrell atmosphere might affect the BH value of TRIP steel.

Key words: TRIP steel, BH value, Internal friction

Renyu Fu,Yu Su,Ping Ye,Xicheng Wei,Lin Li,Jicheng Zhang. Internal Friction on the Bake-Hardening Behavior of 0.11C-1.67Mn-1.19Si TRIP Steel[J]. J Mater Sci Technol, 2009, 25(01): 141-144.

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Internal Friction on the Bake-Hardening Behavior of 0.11C-1.67Mn-1.19Si TRIP Steel

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