| 长期高温高压氢暴露对CrMo钢断裂韧性和裂纹行为的影响 |
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| 引用本文： | 李晓刚,李明,董超芳,陈华.长期高温高压氢暴露对CrMo钢断裂韧性和裂纹行为的影响[J].北京科技大学学报,2002,24(4):418-421. |
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| 作者姓名： | 李晓刚 李明 董超芳 陈华 |
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| 作者单位： | 1. 北京科技大学材料科学与工程学院,北京,100083;中国科学院金属研究所金属腐蚀与防护国家重点试验室,沈阳,110016;2. 北京科技大学材料科学与工程学院,北京,100083 |
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| 基金项目： | 国家自然科学基金;59971011; |
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| 摘 要： | 选用CrMo钢经400℃, 20 MPa, 10 h氢暴露后进行拉伸、断裂韧性和疲劳试验.结果表明:CrMo钢已经发生了氢腐蚀,氢蚀使CrMo钢强度、塑性和断裂韧性均有所降低,也使断裂机制由韧窝型转变为解理脆性.氢蚀使疲劳裂纹扩展行为也发生了变化,疲劳裂纹扩展速率增加,降低.CrMo钢氢蚀后,随应力比增加,疲劳裂纹扩展门槛值大幅度降低.
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| 关 键 词： | CrMo钢 氢蚀 疲劳 断裂 门槛值 |
| 修稿时间： | 2001年5月9日 |
Effect of Long-term High Temperature and Pressure Hydrogen Exposure on Fracture and Fatigue Behaviors of Cr-Mo Steel |
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| LI Xiaogang,LI Ming,DONG Chaofang,CHEN Hua Material Science and Engineering School,UST Beijing,Beijing ,China State Key Laboratory for Corrosion and Protection.Effect of Long-term High Temperature and Pressure Hydrogen Exposure on Fracture and Fatigue Behaviors of Cr-Mo Steel[J].Journal of University of Science and Technology Beijing,2002,24(4):418-421. |
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| Authors: | LI Xiaogang LI Ming DONG Chaofang CHEN Hua Material Science and Engineering School UST Beijing Beijing China State Key Laboratory for Corrosion and Protection |
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| Institution: | LI Xiaogang,LI Ming,DONG Chaofang,CHEN Hua1) Material Science and Engineering School,UST Beijing,Beijing 100083,China 2) State Key Laboratory for Corrosion and Protection,Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | |
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| Keywords: | Cr-Mo steel hydrogen attack fatigue fracture threshold values |
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