|
|
|
| Development of Their Application and 1200 MPa Bainitic Rails |
| CHEN Xin1，2,JIN Jiyong2,LIU Chunming1,YANG Yu2,ZHAO Suhua3 |
| 1. School of Materials and Metallurgy, Northeastern University, Shenyang 110004, Liaoning, China; 2. Technical Center, Anshan Iron and Steel Group Corporation, Anshan 114001, Liaoning,China; 3. Anshan Iron and Steel Group Corporation, Anshan 114021, Liaoning, China |
|
|
|
|
Abstract The microstructural and property stability of bainitic rails developed by Ansteel Company was comprehensively analyzed. Due to high residual stress after straightening, the fracture toughness, fatigue crack propagation rate and residual stress were investigated emphatically. The effect of residual stress of rails was inspected by service test. The research results show that the bainitic rails had stable microstructure and properties,with higher toughness and the abrasive and surface stripping resistance were higher compared with that of heat treatment pearlite rails.
|
|
Received: 01 January 1900
|
|
|
|
| [1] |
WU Zhi-guang, GONG Xue-ting, LI Xin, ZHAO Ji-qing, GONG Zhi-hua. Effect of heat treatment process on creep-rupture property of 20Cr1Mo1VTiB bolt steel[J]. Iron and Steel, 2020, 55(6): 101-106. |
| [2] |
FENG Lu-lu1,2,WU Kai-ming1,3,YU Hong-wei4,ZHAO Hua-zhong5. Production status and developing tendency of high strength and toughness steel for hydropower station[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(3): 175-185. |
| [3] |
GAN Gui-ping,YE Jiang,FAN Lei. Effect of tempering treatment on microstructure and low temperature toughness of a low carbon bainite steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(3): 258-264. |
| [4] |
ZHANG Quan-xin，ZHU Bin，XU Hong-hao，CAO Zheng-kuan. Cause analysis of cracking of 40CrNiMo steel shaft[J]. PHYSICS EXAMINATION AND TESTING, 2020, 38(2): 32-. |
| [5] |
SHI Jun-liang1,LI Shen-bao2,ZHENG Wei-wei2. Effect of bainite characteristics on room temperature mechanical properties of fine ferrite/bainite dual phase steel[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(2): 166-174. |
| [6] |
HE Ya-yuan，LI Li-wei，LUO Hai-he，ZHU Cong-mao. Ductile-brittle transition temperature of high-strength steel by Boltzmann function fitting method[J]. PHYSICS EXAMINATION AND TESTING, 2020, 38(1): 7-. |
|
|
|
|
2008, Vol. 43 
