Mechanical Properties and Retained Austenite Stability of High Aluminum TRIP-aided Cold-rolled Steel Sheets

被引：0
|
作者：
Jing Cainian [1 ]
Wang Minggang
Wang Xiebin [2 ]
Wang Zuocheng [2 ]
Sungjoon, Kim [3 ]
机构：
[1] Shandong Jianzhu Univ, Sch Mat Sci & Engn, Jinan 250101, Peoples R China
[2] Shandong Univ, Jinan 250061, Peoples R China
[3] Korea Inst Machinery & Mat, Chang Won 641010, South Korea
来源：
RARE METAL MATERIALS AND ENGINEERING | 2011年 / 40卷
关键词：
TRIP; carbon content; mechanical properties; retained austenite stability; TRANSFORMATION-INDUCED PLASTICITY; AL; SI; MICROSTRUCTURE; FRACTION; BEHAVIOR; BAINITE; CR;
D O I：
暂无
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The mechanical properties, microstructure and retained austenite stability of CMnAlSi-TRIP steels were investigated in this paper. The steel sheets were hot-rolled, cold-rolled and heat treated by intercritical annealing and isothermal heat treatment. The microstructure, volume fraction of retained austenite and its carbon concentration were observed by Optical microscopy and X-ray diffraction. The mechanical properties were obtained through uniaxial tensile test. The results show that the CMnAlSi cold-rolled TRIP-aided steels have good combination of strength and ductility with proper isothermal heat treatment, the retained austenite stability determines incremental strain hardening exponent during strain-induced martensitic transformation, and affected by its volume fraction and carbon content. The retained austenite stability has a good correlation with the combination of strength and ductility.
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页码：1 / 4
页数：4
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