铜业工程Issue(1)：45-53,9.DOI:10.3969/j.issn.1009-3842.2024.01.005
QAl10-4-4/TC6双金属连接界面组织与力学性能分析
Analysis of Bonding Interfacial Microstructure and Mechanical Properties of QAl10-4-4/TC6 Bimetal
摘要
Abstract
Copper alloy/titanium alloy bimetallic materials can leverage their respective performance advantages,which possess excel-lent properties such as lightweight,wear-resistant and high-strength.This article bonded QAl10-4-4 aluminum bronze and TC6 titani-um alloy of vacuum hot press diffusion bonding,studied the interfacial microstructure and mechanical properties of QAl10-4-4/TC6 bi-metals that directly bonded and bonded with AgCuZnCd through microstructural observation and shear strength test,and explored the influence law of bond parameters and intermediate layers on QAl10-4-4/TC6 bimetallic bond quality,then analyzed the formation mech-anism of the bimetallic interface transition layer.At last,this paper established internal correlation between bonding process-interface microstructure-mechanical properties.The results showed that the quality of QAl10-4-4/TC6 bimetallic with direct diffusion bonding was poor.Intermetallic led to the growth of through long cracks at the interface and the interface shear strength was only 21 MPa.Inter-metallic reduced after bonding QAl10-4-4/TC6 bimetal with AgCuZnCd.The maximum interface shear strength was 177.9 MPa at 850℃.The residual internal stress and cracks between interfaces increased as the temperature exceeded 835℃,as a result,the bime-tallic interface strength decreased rapidly.The strength of the bimetallic interface decreased rapidly as the temperature exceeded 850℃.关键词
铜合金/钛合金/真空热压扩散连接/中间层/金属间化合物/剪切强度Key words
copper alloy/titanium alloy/vacuum hot press diffusion bonding/intermediate layer/intermetallic/shear strength分类
矿业与冶金引用本文复制引用
姜琪,孙利星,张艺豪,张容焱,倪磊,杨倩,邹军涛..QAl10-4-4/TC6双金属连接界面组织与力学性能分析[J].铜业工程,2024,(1):45-53,9.基金项目
国家自然科学基金青年项目(52104385) （52104385）
陕西省重点研发三项改革项目(2023GXLH-037) （2023GXLH-037）
陕西省教育厅重点科研计划协同创新中心项目(21JY030) （21JY030）
西安市科协青年人才托举计划项目(095920221357)资助 （095920221357）
