摘要
通过对SA387Gr11CL2耐热钢SAW焊接接头的显微组织分析,得到SA387Gr11CL2焊缝、热影响区的显微组织的变化规律。其中焊缝区为回火索氏体+细粒状碳化物;过热区为保持板条状马氏体位相的回火索氏体组织;重结晶区为细小的回火索氏体+铁素体的组织;部分相变区为晶粒较粗大的回火索氏体+铁素体组织。
The microstructure of welded joint of SA387Grl 1CL2 steel was analyzed by optical microscopy. And the change regulation of microstructure for the welded joint was obtained. The microstructure of weld zone is tempered sorbite and fine carbide. Microstructure of over-heated zone is tempered sorbite. Microstructure of secondary solidification zone is fine tempered sorbite and ferrite. The mierostructure of partial phase-transformation zone is coarse tempered sorbite and ferrite.
出处
《热加工工艺》
CSCD
北大核心
2014年第21期193-195,共3页
Hot Working Technology
