掺氢天然气环境下管线钢氢致疲劳裂纹扩展研究进展
樊嘉骏, 董立谨, 马成, 张兹瑜, 明洪亮, 韦博鑫, 彭庆, 王勤英

Research Progress on Hydrogen-assisted Fatigue Crack Growth of Pipeline Steels in Hydrogen-blended Natural Gas Environment
FAN Jiajun, DONG Lijin, MA Cheng, ZHANG Ziyu, MING Hongliang, WEI Boxin, PENG Qing, WANG Qinying
图3 气态氢条件下两种疲劳裂纹通过珠光体晶粒的扩展模式示意图[57]
Fig.3 Schematic illustrations of the two fatigue crack propagation modes through pearlite grains under the presence of gaseous hydrogen[57]: (a) cracking-mode transecting ferrite/cementite lamellar aligned nearly perpendicular to the crack-plane (pearlite tearing, pt), (b) delamination-type fracture along the ferrite/cementite interfaces lying almost parallel to the crack-plane (pearlite delamination, PD)