对鞍钢生产的贝氏体钢轨组织及性能的稳定性进行了全面的分析研究，针对钢轨矫直残余应力比较高的特点，重点进行了断裂韧性、疲劳裂纹扩展速率、残余应力等方面的研究，结合钢轨试铺考察了残余应力对钢轨的影响。研究结果表明：贝氏体钢轨组织形态及性能稳定，并具有较高的强韧性。对试铺的观测结果表明：其耐磨及表面耐剥离性能优于热处理珠光体钢轨。
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.
参考文献
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%