Microstructure and fractography for the specimens of X80 pipeline steel chargied with hydrogen in constant load tests and in slow strain rate tests(SSRT)were studied by optical microscopy and SEM.

 
  • 用光学显微镜和扫描电镜观察了不同充氢电流下恒载荷拉伸试样、慢应变速率拉伸试样的显微组织和断口形貌。
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