摘要
广泛用于大容积无缝高压储氢容器制造的铬钼钢4130X,在高压氢环境下面临着因高压氢脆引起的力学性能劣化现象,对4130X储氢容器的安全运行产生极大威胁。课题组利用研发的高压氢环境材料耐久性试验装置,对4130X在50 MPa氢环境下的疲劳裂纹扩展速率和断裂韧度开展试验研究。结果表明:相比于空气下,4130X在50 MPa氢环境下的疲劳裂纹扩展速率加快了约10~16倍,断裂韧度降低了约71.1%。4130X储氢容器的疲劳设计应考虑高压氢脆对材料断裂力学性能的劣化作用。
Chromium molybdenum steel 4130 X is widely used in the manufacture of large volume seamless high pressure hydrogen storage vessels,however,4130 X may face the deterioration of mechanical properties caused by high-pressure hydrogen embrittlement in high-pressure hydrogen environment,which is a great threat to the safe operation of 4130 X hydrogen storage vessels.The fatigue crack growth rate and fracture toughness of 4130 X in 50 MPa hydrogen environment were studied by using the designed high pressure hydrogen environment material durability test device.The results show that the fatigue crack growth rate of 4130 X in 50 MPa hydrogen environment is 10-16 times faster than that in air,and the fracture toughness is reduced by 71.1%.The fatigue design of 4130 X hydrogen storage vessel should consider the deterioration of high pressure hydrogen embrittlement on the fracture mechanical properties of materials.
作者
顾超华
姚彦辰
赵益明
马凯
匡继勇
张睿明
刘亚宇
花争立
彭文珠
GU Chaohua;YAO Yanchen;ZHAO Yiming;MA Kai;KUANG Jiyong;ZHANG Ruiming;LIU Yayu;HUA Zhengli;PENG Wenzhu(Institute of Process Equipment,Zhejiang University,Hangzhou 310027,China)
出处
《轻工机械》
CAS
2021年第5期8-13,共6页
Light Industry Machinery
基金
国家重点研发计划(2019YFB150530)
浙江省重点研发计划项目(2019C01154)
先进能源科学与技术广东省实验室佛山分中心(佛山仙湖实验室)开放基金(XHD2020-004)。
关键词
4130X
高压氢脆
疲劳裂纹扩展速率
断裂韧度
4130X
high pressure hydrogen embrittlement
fatigue crack growth rate
fracture toughness
作者简介
第一作者:顾超华(1963),男,浙江杭州人,硕士,研究员,博士生导师,主要从事先进能源(氢能、天然气)承压设备、极端承压设备研究;通信作者:匡继勇(1969),男,四川成都人,博士,副教授,主要从事氢能承压设备以及检测装置的研究。E-mail:cekuangjy@zju.edu.cn。
