CAJ | 학술논문

采用步冷试验法对21／4Cr－1Mo钢焊接接头的回火脆化倾向性进行评定试验。结果表明，由于焊缝、焊缝金属的回火脆化倾向性，试验焊接接头焊接热影响区的韧性高于焊接热影响区。由于焊缝和母材的磷含量较低，磷偏聚对回火脆化倾向性的影响较小，而组织结构对韧性和回火脆化倾向性的影响较大。
채용보랭시험법대21／4Cr－1Mo강한접접두적회화취화경향성진행평정시험。결과표명，유우한봉、한봉금속적회화취화경향성，시험한접접두한접열영향구적인성고우한접열영향구。유우한봉화모재적린함량교저，린편취대회화취화경향성적영향교소，이조직결구대인성화회화취화경향성적영향교대。
Test study of temper embrittlement tendency for welding joint of 2Cr-1Mo steel is carried out using step cooling test method .The results show that , due to the tendency of temper embrittlement of weld metal , the toughness of the heat affected zone of test welded joint is higher than that of heat affected zone .Because the phosphorus content in the weld and base material is lower , so phosphorus segregation effect on temper embrittlement tendency is smaller , while the affect of structure on tough-ness and embrittlement is si gnifican .