Study of the Difference in Microstructures and Properties of Cold Rolled Dual Phase Steel with Different Composition

被引：0
|
作者：
Wang Hui [1 ]
Lin Chengjiang [1 ]
Deng Zhaojun [1 ]
Liu Jibin [1 ]
机构：
[1] R&D Ctr WISCO, Wuhan 430080, Peoples R China
来源：
NEW TRENDS IN MECHANICAL ENGINEERING AND MATERIALS | 2013年 / 251卷
关键词：
high strength steel; different composition; dual phase steel; martensite;
D O I：
10.4028/www.scientific.net/AMM.251.351
中图分类号：
TH [机械、仪表工业];
学科分类号：
0802 ;
摘要：
The difference in microstructures and properties of 600MPa cold rolled dual phase steel with the different composition has been studied in this paper. It can be noticed that the Si-Mn-Cr steel has finer ferrite and more martensite whose content is about 25%; the Mn-Cr-Mo steel has coarser ferrite and some coarse pearlite as well as little martensite; the microstructures of the Mn-Al-Mo steel is consist of mainly ferrite which have even grain size and 16% martensite which distributed homogenously along the ferrite grain boundaries. The difference in microstructure makes the steel own the different properties. The Si-Mn-Cr steel has the highest tensile strength and yield strength but the worst elongation, the Mn-Cr-Mo steel has the lowest tensile strength, the Mn-Al-Mo steel has the an excellent mechanical properties with low yield strength and high tensile strength as well as higher elongation.
引用
收藏
页码：351 / 354
页数：4
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