不同回火温度下贝氏体热轧钢轨疲劳裂纹的扩展速率
TEST ANALYSIS OF FATIGUE CRACK PROPAGATION RATE OF BAINITE HOT ROLLING RAIL UNDER DIFFERENT TEMPERED TEMPERATURE
摘 要
用MTS810试验机进行了贝氏体热轧钢轨疲劳裂纹扩展速率试验,并用Paris公式分析了不同回火温度下贝氏体钢轨疲劳裂纹扩展速率试验数据。结果表明,Paris公式可以描述不同回火温度下贝氏体热轧钢轨疲劳裂纹扩展速率,并可用来预测裂纹扩展情况。
疲劳裂纹扩展速率
损伤
Bainite rail
Fatigue crack propagation rate
Compound fissure
Abstract
The fatigue crack propagation rate test of Bainite rail steel with MTS810 Materials Testing Machine was studied,and the test data of the fatigue crack propagation rate under different tempered temperature has been analyzed by Paris formula. The result indicates that the fatigue crack propagation rate of Bainite rail steel under different tempered temperature can be described by Paris formula,and crack propagation condition can be forecasted as well.
中图分类号 O346 TG142 U239.2
所属栏目 试验与研究
基金项目
收稿日期 2007/5/17
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备注苏洪英(1969-),女,工程师,工学学士。
引用该论文: SU Hong-ying,CHEN Hong-kai,L Dan,YANG Cheng-bo,LI Yang. TEST ANALYSIS OF FATIGUE CRACK PROPAGATION RATE OF BAINITE HOT ROLLING RAIL UNDER DIFFERENT TEMPERED TEMPERATURE[J]. Physical Testing and Chemical Analysis part A:Physical Testing, 2007, 43(12): 602～604
苏洪英,陈洪凯,吕 丹,杨承波,李 阳. 不同回火温度下贝氏体热轧钢轨疲劳裂纹的扩展速率[J]. 理化检验－物理分册, 2007, 43(12): 602～604
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参考文献
【1】TB/T 2344-2003 46 kg/m-75 kg/m热轧钢轨订货技术条件［S］．
【2】EN 13674-1 Railway application-Track-Rail-Part 1: Vignole railway rails 46 kg/m and above［S］．
【2】EN 13674-1 Railway application-Track-Rail-Part 1: Vignole railway rails 46 kg/m and above［S］．
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