Research on Microstructure and Mechanical Properties of High Strength Steel

被引：1
|
作者：
Zhu, Pengxiao [1 ,2 ]
Li, Yi [1 ,2 ]
Feng, Kun [1 ,2 ]
Wang, Xiaoming [3 ]
Fan, Huiji [1 ,2 ]
机构：
[1] Xuzhou Construct Machinery Grp, State Key Lab Intelligent Mfg Adv Construct Machi, Xuzhou 221004, Jiangsu, Peoples R China
[2] Xuzhou Construct Machinery Grp, Jiangsu Xuzhou Construct Machinery Res Inst, Xuzhou 221004, Jiangsu, Peoples R China
[3] XCMG Earth Moving Machinery Business Unit, Xuzhou 221004, Jiangsu, Peoples R China
来源：
2ND INTERNATIONAL CONFERENCE ON FRONTIERS OF MATERIALS SYNTHESIS AND PROCESSING | 2019年 / 493卷
关键词：
D O I：
10.1088/1757-899X/493/1/012147
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructure and properties of Q460C high strength steel were studied in this paper. The results show that the margin microstructure of the test steel Q460C is banded ferrite + pearlite. The internal microstructure is banded ferrite + pearlite + bainite, the grade of banded microstructure is 2.5. The tensile strength, yield strength, post-fracture elongation and Brinell hardness of Q460C steel are 620MPa, 502MPa, 22% and 175HBW10/3000 respectively. The impact energy of -40 degrees C is above 50J, and a large number of equiaxed dimples are evenly distributed in the impact fracture. The conditional fatigue strength of test steel Q460C under 10(7) is 250MPa.
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页数：5
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