氢蚀温度对20G和15CrMo钢疲劳行为的影响

材料研究学报, 1995, 9(6): 496-500.

氢蚀温度对20G和15CrMo钢疲劳行为的影响

郦建立 , 李晓明 , 谢根栓 , 姚治铭 , 李劲 , 柯伟 , 抚顺石油学院

中国科学院金属腐蚀与防护研究所

腐蚀与防护国家重点实验室

EFFECT OF HYDROGEN ATTACK TEMPERATURE ON FATIGUE CRACK BEHAVIOR FOR 20G AND 15CrMo STEELS

LI Jianli , LI Xiaoming , XIE Genshuan , YAO Zhiming , LI Jin , KE Wei(National Laboratory of Corrosion and Protection.Institute of Corrosion and Protection ofmelals.Academia Sinica.Fushun Petroleum Institute)(Corresponent:LI Jianli , Mechanical Department

Keywords： :hydrogen attack fatigue crack growth threshold △K value crack closure , 疲劳裂纹扩展 , 门槛值 , 裂纹闭合效应

研究了氢蚀温度对20G和15CrMo钢常规力学性能与疲劳性能和机制的影响以及应力比对氢蚀后20G钢疲劳性能的影响结果表明,氢蚀后20G钢的疲劳行为受氢蚀对材料损伤程度和氢蚀导致粗糙的裂纹途径造成闭合效应增加两因素联合作用;氢蚀后15CrMo钢脱碳严重,其疲劳行为仅受脱碳对材料损伤作用的影响;应力比对20G疲劳性能也有很大影响

The mechanical properties and fatigue crack growth behavior of 20G and 15CrMo steels after hydrogen attack at different temperatures under the hydrogen presence of 18MPa for 240h have been investigsted.The effeCt of the stress ratio on the fatigue crack

参考文献

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材料期刊网

氢蚀温度对20G和15CrMo钢疲劳行为的影响

EFFECT OF HYDROGEN ATTACK TEMPERATURE ON FATIGUE CRACK BEHAVIOR FOR 20G AND 15CrMo STEELS

参考文献