压力容器2011，Vol.28Issue(8)：16-21,6.DOI:10.3969/j.issn.1001-4837.2011.08.004
405/Q245R不锈钢复合板焊接工艺及接头组织与性能
Welding Technology of 405/Q245R Stainless Steel Composite Plate and Microstructure and Mechanical Properties of Welded Joint
陈忱 1王少刚 1翟伟国 1吴淑玉 1俞旷1
作者信息
- 1. 南京航空航天大学材料科学与技术学院,江苏南京210016
- 折叠
摘要
Abstract
The cladding metal and transition region of 405/Q245R stainless steel composite plate are welded by tungsten inert gas arc welding (TIG) with ER309L welding wire and by shielded metal arc welding (SMAW) with A302 electrode respectively, and the base layer is welded by SMAW with E4315 electrode. Results of mechanical properties test show that the tensile strength of welded joints is similar with the strength of base metal,and all the tensile samples broke at the position of base material. Metallograph observation of welded joint illustrates that the microtructure of weld metal is composed of austenite and a little ferrite, and the migration of carbon element is not obvious at the interface of transition region and base metal during welding. Furthermore, the result of XRD analysis of transition region indicates that there is no deteriorative phases precipitation in the weldment, which is announced that the mechanical properties of welded joint is better and the welding technology is feasible, thus these two kinds of welded joint meet the practical requirements of engineering structure.关键词
不锈钢复合板/焊接工艺/微观组织/力学性能Key words
stainless steel composite plate/ welding technology/ microstructure/ mechanical properties分类
矿业与冶金引用本文复制引用
陈忱,王少刚,翟伟国,吴淑玉,俞旷..405/Q245R不锈钢复合板焊接工艺及接头组织与性能[J].压力容器,2011,28(8):16-21,6.
