异种钢的焊接研究现状-精密成形工程.PDF

第 9 卷 第 5 期 精 密 成 形 工 程 2017 年 09 月 JOURNAL OF NETSHAPE FORMING ENGINEERING 83 异种钢的焊接研究现状 高杰，王娟，李亚江 （山东大学 材料液固结构演变与加工教育部重点实验室，济南 250061） 摘要：异种钢焊接时由于其化学成分与性能的较大差异，容易导致焊接裂纹、焊缝组织不均匀及性能稳定 性差等问题，许多研究者对不同强度级别的低合金高强钢、异种不锈钢以及复合钢板的焊接进行了大量试 验研究及理论分析。针对不同类型的异种钢焊接研究进行了综述，分析了异种钢焊接的特点，并对常见的 问题进行了探讨，概述了国内外异种钢的焊接方法、工艺措施及接头性能等方面的研究现状，并对异种钢 的焊接研究及其应用进行了展望。 关键词：异种钢；焊接性；裂纹；组织性能 DOI ：10.3969/j.issn.1674-6457.2017.05.011 中图分类号：TG457 文献标识码：A 文章编号：1674-6457(2017)05-0083-07 Study on the Welding of Dissimilar Steel GAO Jie, WANG Juan, LI Ya-jiang (Key Laboratory for Liquid-Solid Structural Evolution Processing of Materials, Ministry of Education, Shandong University, Jinan 250061, China ) ABSTRACT: Welding crack, inhomogeneous weld metal and performance instability will be existed in the weld joint of dissi- milar steels due to the large difference between their chemical compositions or properties. Many researchers have conducted a lot of investigations including different kinds of low-alloy high strength steel, stainless steel and laminated composites. The present situation of the welding method, process and property of dissimilar steel was summarized and the characteristics of dis- similar steel welding and the common problems were investigated through studying on the weldability of dissimilar steel in- cluding low-alloy high strength steel, stainless steel and laminated composites. The trends of dissimilar steel welding technology and its application are presented briefly. KEY WORDS: dissimilar steel; weldability; crack; microstructure 随着工程机械向大型化、轻量化方向发展，高强