A302和Inconel 182焊接的Cr5Mo异质焊接接头的碳迁移和蠕变破断寿命  

CARBON MIGRATION AND CREEP RUPTURE LIFE OF Cr_5Mo DISSIMILAR WELDED JOINTS WELDED BY A302 AND INCONEL 182

作　　者：姜勇[1] 巩建鸣[1] 涂善东[1] 

机构地区：[1]南京工业大学机械与动力工程学院,江苏省南京市210009

出　　处：《炼油技术与工程》2005年第2期30-32,共3页Petroleum Refinery Engineering

基　　金：国家自然科学基金(编号10172046)资助

摘　　要：针对奥氏体和镍基焊材焊接的Cr5Mo异种钢焊接接头,通过时效处理和蠕变持久试验,研究了A302/Cr5Mo和Inconel182/Cr5Mo异种钢焊接接头的碳迁移状况和蠕变破断寿命。研究结果表明,由于A302/Cr5Mo异种钢焊接接头发生碳迁移,与镍基焊材焊接的焊接接头相比,其蠕变破断强度下降,破断寿命只有Inconel182/Cr5Mo异种钢焊接接头蠕变破断寿命的50％左右。Carbon migration and creep mpture life of A302/Cr5Mo and Inconel 182/Cr5Mo dissimilar welded joints with Ni-based and austenitic welded metal have been studied by thermal aging treatment and long term creep test. The result shows that creep rupture strength of Cr5Mo dissimilar welded joints with A302 austenitic welded metal was decreased due to the carbon migration and it is about 50% of that with Inconel 182 welded metal.

关 键 词：奥氏体 镍基焊材 CrSMo异种钢 焊接接头 碳迁移 蠕变破断 

分 类 号：TG407[金属学及工艺—焊接]