钛合金线性摩擦焊研究现状及展望  

Linear Friction Welding of Titanium Alloys:State-of-the-art and Perspectives

作　　者：苏宇[1] 李文亚[1] 王新宇[1] 马铁军[1] 杨夏炜[1] Vairis A 

机构地区：[1]西北工业大学凝吲技术国家重点实验室、陕西省摩擦焊接工程技术重点实验窀,陕西西安710072

出　　处：《中国材料进展》2017年第11期852-859,共8页Materials China

基　　金：西北工业大学凝固技术国家重点实验室自主课题(122-QZ-2015)

摘　　要：线性摩擦焊(LFW)是20世纪80年代出现的一种新型固相焊接方法,主要用来焊接非圆截面的同种及异种金属构件。目前,国外已将LFW成功应用于航空发动机钛合金整体叶盘的制造;国内尽管已经实现了整体叶盘模拟件的焊接,但基础理论研究仍然严重不足。根据公开报道,国内外对同种及异种钛合金的LFW工艺、接头组织结构及力学性能等方面开展了大量研究,揭示了典型钛合金LFW接头的组织与性能的相关特征。从界面微观结构、力学性能、LFW工艺参数、数值模拟等几个方面对近期钛合金LFW的研究成果进行了综述分析,提出了目前研究存在的不足,并总结了钛合金LFW的应用现状与发展前景。Linear friction welding （LFW） is a relatively new type of solid-state welding method emerged in the 1980s, and it is mainly used for the welding of similar and dissimilar non-circular cross-sectian metals. At present, LFW has been successfully used in the titanium alloy blisks of aircraft engines in the devel western countries, Although the blisk simulators have in welded successfully, the basic theory research is still inadequate. Accong to the open literatures, most works have been cod out on LFW similar and dissimilar metals in terms of the microstructure, mechanical properties, process parameters and numerical simulation. Besides, the correlated characters between the microstructure and meccal properties have been found. This article reviewed the important research results on LFW titanium alloys, and the deficiencies at present have in put forward. Finally, the application statuses and development prospects of LFW titanium alloys have been considered.

关 键 词：线性摩擦焊 钛合金 微观结构 力学性能 发展前景 

分 类 号：TG425[金属学及工艺—焊接]