摘要
通过对具有不同奥氏体晶粒度的P50钢轨钢进行门槛值和裂纹扩展速率的测定,对裂纹扩展规律进行了电子显微分析,揭示了P50钢轨钢的奥氏体晶粒度对其门槛值和裂纹扩展速率的影响规律。
The rule of influence of the austenitic grain size of P50 railway steel on its threshold value and crack growth rate has been discovered by measuring the threshold value and crack growth rate of P50 railway steel possessing different austenitic grain sizes and analyzing the rule of crack growth with a electronic microscope.
出处
《机械工程材料》
CAS
CSCD
1993年第5期9-10,共2页
Materials For Mechanical Engineering
