Formability of TRIP/TWIP Steel Containing Manganese of 18.8%

钢铁研究学报(英文版), 2011, 18(1): 36-40.

^1, , ^2, , ^3, , ^4, , ^5, , ^6,

1.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

2.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China;State Key Laboratory of Rolling and Automation of Northeastern University, Shenyang 110819, Liaoning, China

3.State Key Laboratory of Rolling and Automation of Northeastern University, Shenyang 110819, Liaoning, China

4.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

5.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

6.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

基金项目: National Natural Science Foundation of China(50771019;50901014) Open Project Foundation of State Key Laboratory of Rolling and Automation of Northeastern University of China(2009001)

Formability of TRIP/TWIP Steel Containing Manganese of 18.8%

DING Hao ^1, , DING Hua ^2, , QIU Chun-lin ^3, , TANG Zheng-you ^4, , ZENG Jian-min ^5, , YANG Ping ^6,

1.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

3.State Key Laboratory of Rolling and Automation of Northeastern University, Shenyang 110819, Liaoning, China

4.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

5.School of Materials and Metallurgy, Northeastern University, Shenyang 110819, Liaoning, China

6.School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China

Keywords： high manganese TRIP/TWIP steel

The mechanical property and forming limit experiments were carried out on a high manganese TRIP/TWIP steels with manganese of 18.8%. And the forming limit diagram was obtained. This high manganese steel shows outstanding mechanical properties combining high strength with good formability. Its limit plane strain corresponding to the lowest point in the plain strain condition is about 38%. The effects of conventional mechanical property on the limil plane strain were analyzed. With increasing the content of Mn, the limit plane strain increases, indicating that TWlP effect is advantageous to the increase of formability. Combining with three classical models and volume invariable principle, a FLD model was built, which is suitable for high manganese steels very well.

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Formability of TRIP/TWIP Steel Containing Manganese of 18.8%

参考文献