摘要
Cr6Mn13Ni10／Cr5Mo异质金属焊接接头在时效过程中．其熔合区碳的扩散行为不同于以往的A／F（如A302／Cr5Mo等）异质焊接接头．时效初期奥氏体钢一侧有一定宽度的增碳层，随时效时间延长．增碳层反而逐渐变窄；时效温度越高，上述现象越明显，经700℃，时效50h后增碳层可完全消失，增碳层的出现与消散和焊丝中强碳化物形成元素Cr的含量以及时效初期生成的含Cr碳化物的类型和稳定性有关。
The diffusion behavior of carbon in aging Cr6Mn13Ni10/Cr5Mo dissimilar welded joint is different from the past A302 / Cr5Mo dissimilar welded joints. Initially, carbon-enriched belt, to a certain extent, formed in austenitic steel adjacent to the weld interface in the fusion zone. With increasing aging time or temperature, the belt gradually decreases. After aging at 700 ℃ for 50h, the carbon-enriched belt has been fully vanished in optical microscope. Furthermore, the diffusion behavior results from two cases: the chromium content in the new welding wire; the kind and stability of the chromium-based carbide precipitated.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
1999年第8期883-887,共5页
Acta Metallurgica Sinica
关键词
异质接头
时效
扩散行为
碳
异种钢焊接
Cr6Mn13Ni10/Cr5Mo dissimilar welded joint, aging, carbon, diffusion behavior
