钛及钛合金焊接接头腐蚀性能研究现状  

Research status of corrosion property of Ti and Ti alloy welded joints

作　　者：周洋[1] 孔谅[1,2] 王敏 华学明[1,2] 牟刚 ZHOU Yang;KONG Liang;WANG Min;HUA Xueming;MOU Gang(Shanghai Key Laboratory of Material Laser Processing and Modification,Shanghai Jiaotong University,Shanghai200240,China;Collaborative Innovation Center for Advanced Ship and Deep-Sea Exploration,Shanghai 200240,China)

机构地区：[1]上海交通大学上海市激光制造及材料表面改性重点实验室,上海200240 [2]高新船舶与深海开发装备协同创新中心,上海200240

出　　处：《电焊机》2018年第7期46-50,75,共6页Electric Welding Machine

基　　金：国家重点研发计划(2016YFB0301205)

摘　　要：钛及钛合金兼有钢(强度高)和铝(质地轻)的优点,具有优良的耐腐蚀性能,广泛应用于航空、航天、化工及冶金等领域。介绍钛及钛合金钨极氩弧焊(TIG焊)和激光焊(LBW焊)焊接接头的组织特征,归纳总结评价钛及钛合金焊接接头耐腐蚀性能优劣的方法,并与母材进行对比。研究发现,钛及钛合金焊接接头显微组织的改变或者氧化膜更加稳定可提高钛及钛合金焊接接头耐腐蚀性能。Titanium and titanium alloys have the advantages of both steel（high strength） and aluminum（light weight） as well as excellent corrosion resistance. They are widely used in the fields of aviation,aerospace, chemical engineering and metallurgy. The microstructure characteristics of TIG and LBW welded joints are introduced, and the method of evaluating the corrosion resistance of titanium and titanium alloy welded joints is summarized and compared with base material. The study finds that： titanium and titanium alloy welded joint microstructures change or more stable oxide film makes titanium and titanium alloy welded joints have improved corrosion resistance.

关 键 词：钛 钛合金 组织特征 腐蚀性能 

分 类 号：TG406[金属学及工艺—焊接]