TA16钛合金导管与1Cr18Ni9Ti不锈钢套管高频感应钎焊研究  

Study on High Frequency Induction Brazing of TA16 Titanium Alloy Tube and 1Cr18Ni9Ti Stainless Steel Tube

作　　者：马龙[1] 倪家强 刘艳梅[1] 侯琦[1] 张利[2] MA Long;NI Jiaqiang;LIU Yanmei;HOU Qi;ZhANG Li(Shenyang Aircraft Corporation,Shenyang 110850,China;Shanyang Aerospace University,Shenyang 110136,China)

机构地区：[1]沈阳飞机工业(集团)有限公司,辽宁沈阳110850 [2]沈阳航空航天大学,辽宁沈阳110136

出　　处：《热加工工艺》2018年第13期64-67,共4页Hot Working Technology

摘　　要：对TA16钛合金导管和1Cr18Ni9Ti不锈钢套管采用钛基钎料Ti-Cu-Zr-Ni进行高频感应钎焊,采用光学显微镜、扫描电镜、能谱分析仪对钎缝界面组织进行观察和分析,并采用显微硬度计测定显微硬度。结果表明：接头界面形成了Ti（s.s）、Cu（s.s）、Ti-Cu和Ti-Fe金属间化合物等反应产物,从钛侧至不锈钢侧,界面组织依次为Ti（s.s）＋Ti-Cu,Cu（s.s）＋Ti（s.s）＋Ti-Cu,Ti-Cu＋Ti-Fe＋少量Ti-Fe-Cr。接头界面组织中钎料层的显微硬度明显高于其他区域,硬度值高达686.8 HV0.2。The high frequency induction brazing test of TA 16 titanium alloy tube and 1Cr1 8Ni9Ti stainless steel tube was carried out by using Ti based brazing filler metal Ti-Cu-Zr-Ni. The interfacial structures of the brazing seam were observed and analyzed by using optical microscope （OM）, starting electron microscope （SEM） and energy dispersive sperctrometer （EDS）, and the microhardness was measured by using microhardness tester. The results show that Ti（s.s）, Cu（s.s）, Ti-Cu and Ti-Fe intermetallic compounds are formed at the joint interface, the interfacial structure is Ti （s.s）＋Ti-Cu, Cu （s.s）＋Ti （s.s） ＋Ti-Cu, Ti-Cu ＋ Ti-Fe ＋ a small amount of Ti-Fe-Cr from the Ti side to the stainless steel side. The microhardness of the brazing metal layer is higher than that of other area in the joint interfacial structure, and the microhardness is up to 686.8HV0.2.

关 键 词：钛合金 不锈钢 高频感应钎焊 界面组织 显微硬度 

分 类 号：TG454[金属学及工艺—焊接]