掺氢天然气环境下管线钢氢致疲劳裂纹扩展研究进展
Research Progress on Hydrogen-assisted Fatigue Crack Growth of Pipeline Steels in Hydrogen-blended Natural Gas Environment
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 |
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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2 氢在管线钢内部扩散的不同阶段[ |
| Fig.2 Different stages of hydrogen diffusion within pipeline steel: (a) hydrogen is dissociated into h atoms in the pipelines and adsorbed to the inner surface of the metals, (b) atoms or regenerated hydrogen molecules degrade metal lattices, (c) hydrogen breaks the lattices and evolves into micro-crack propagation, (d) macroscopically visible cracks appear[ |
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