TIG焊接TC4工艺参数对熔合区显微组织特征影响研究  

Study on TC4 Technology Parameters of TIG Welding on the Effect of Microstructure Characteristics of the Fusion Zone

作　　者：陈茂军[1] 

机构地区：[1]西安航空职业技术学院,陕西西安710089

出　　处：《长沙航空职业技术学院学报》2013年第3期58-61,共4页Journal of Changsha Aeronautical Vocational and Technical College

基　　金：西安航空职业技术学院院级课题"薄板钛合金TIG焊接工艺;性能及焊缝显微组织研究"(编号:12XK-ZL001)阶段性研究成果

摘　　要：利用TIG焊接材料厚度为1.2mm钛合金薄板,正反面用Ar气进行保护,要求单面焊双面成形,焊接时取几组不同的焊接工艺参数进行焊接试验,对焊接试件进行横向切割磨制成金相,利用扫描电镜(SEM)观察不同试样熔合区的显微组织,并且对它的成分进行分析,通过比较它们的显微组织特征,以便合理评价出最优的焊接工艺参数来焊接1.2mm的钛合金薄板。This paper makes use of TIG welding material, namely, titanium alloy sheet with the thickness of 1.2mm, protects the positive and negative sides with inert gas, and requires single face welding and double face shaping. When welding, it adopts several groups of different welding parame- ters for welding test, conducts transverse cutting and grinding into metallographic phase specimen, and observes the mierostruetures of the fusion zone of different samples by SEM. After that, the author ana- lyzes its compositions, and then by comparing their microstructure characteristics, rationally evaluates the optimal welding parameters to weld 1.2mm Titanium alloy sheet.

关 键 词：TIG焊 工艺参数 显微组织 熔合区 

分 类 号：TG441[金属学及工艺—焊接]