STUDY ON THE HYDROGEN EFFECT ON THE TEMPER EMBRITTLEMENT OF 2.25Cr-1Mo STEEL

摘要：

The relationship between hydrogen embrittlement and temper embrittlement of 2.25Cr-1Mo steel was investigated by Auger electron spectrometer testing and electrochemical hydrogen charging. The results indicate that atomic hydrogen increases the grain boundary concentration of impurity element P and temper embrittlement. The increscent temper embrittlement degree by hydrogen will rise with further embrittlement and the relationship between increscent temper embrittlement degree and temper embrittlement degree is ΔCp=log4.9351×(Cp)1.31687. The grain boundary segregation theory was used and results of theory calculation and testing show that the relationship between hydrogen embrittlement and temper embrittlement can be explained by theory of grain boundary segregation. The embrittlement degree of 2.25Cr-1Mo steel which is induced by hydrogen and temper embrittlement is Cp=log4.9351×(Cp)1.31687+Cp.

作者: ZHANG Xiliang ZHOU Changyu

作者单位: School of Mechanical and Power Engineering Nanjing University of Technology Nanjing,JiangSu,210009, School of Mechanical and Power Engineering Nanjing University of Technology Nanjing,JiangSu, 210009,

会议类型: 国际会议

会议名称: 18th International Conference on Nuclear Engineering(第18届国际核能工程大会 ICONE 18)

会议地点: 西安

会议语种:英文

页码: 1-6

在线出版日期: 2010-05-17（万方平台首次上网日期，不代表论文的发表时间）