15CrMo钢氢蚀激活能测定及焊头氢蚀分析  

ANACYSIS OF HYDROGEN ATTACK ACTIVATION ENERGY AND WELDING SEAM HYDROGENATTACK FOR 15CrMo STEEL

作　　者：李晓刚[1] 陈华[1] 孟庆海[1] 姚治铭[1] 李劲[1] 柯伟[1] 

机构地区：[1]中国科学院金属腐蚀与防护研究所金属腐蚀与防护国家重点实验室,抚顺石油学院,中国科学院金属腐蚀与防护研究所

出　　处：《金属学报》1995年第10期B455-B459,共5页Acta Metallurgica Sinica

摘　　要：选用１５Ｃｒ－Ｍｏ钢，分别在３００，３５０，４００，４５０，５００℃和１８ＭＰａ下氢蚀不同时间，分析其高温高压氢中脱碳激活能和氢蚀激活能。结果表明，氢蚀脱碳激活能与氢蚀激活能接近，说明其氢蚀初期，氢蚀过程由碳的扩散速率控制．焊接热影响区的氢蚀程度大于基体．The activation energies of decarburization and hydrogen attack of 15CrMo steel exposed under 18 MPa H2 and at 300, 350, 400, 450 and 500℃ for different time were evaluated. Both activation energies have similar value. This is believed that the hydrogen attack reaction is controlled by the diffusion of C-atom. The hydrogen attack in the welding affected zone is more obvious than that of matrix.

关 键 词：铬钼钢 氢蚀 激活能 焊头 

分 类 号：TG172.83[金属学及工艺—金属表面处理]