宇航材料工艺2013，Vol.43Issue(3)：77-80,4.
TiAl与TC4扩散焊接接头的组织与性能
Structure and Joint Properties of Diffusion Bonded TiAl Alloy and TC4 Alloy
摘要
Abstract
TiAl alloy was prepared using hot isostatic pressing process and the fully lamellar microstructure was achieved via heat treatment.Then the diffusion bonding of TiAl and TC4 was invetigated.By the analysis of the microstructure,mechanical property and fracture surface,it is found that TiAl alloy and TC4 alloy can be jointed well under the conditions of 915℃/80 MPa/1 h,and the joint achieves metallurgical combination.The joint part appears both TiAl lamellar and TC4 rolling stripe.Strength of some joints exceeds the TiAl substrate.At room temperature,400℃and 500℃,the joint tensile strength reaches 91.77％,95.27％ and 99.21％ of the TiAl substrate,respectively.关键词
扩散连接/全片层组织/组织/性能Key words
Diffusion bonding/ Full lamellar microstructure/ Microstructure/Property引用本文复制引用
杨荣娟,黄源殉,薛志勇,杨琴,徐钢..TiAl与TC4扩散焊接接头的组织与性能[J].宇航材料工艺,2013,43(3):77-80,4.基金项目
教育部新世纪优秀人才支持计划(NCET-12-0849) （NCET-12-0849）
北京市教委产学研合作项目(GJ2012002) （GJ2012002）
国家重点基础研究发展计划(2011CB710706) （2011CB710706）
