摘要
为开发高性能低成本的Cu-Ti基多元合金钎料,研究了Ni含量对Cu_(7-x)Ni_(x)Ti_(3)合金铸锭组织、凝固过程及其与氧化铝的界面反应的影响。研究表明,添加原子分数为20%~50%Ni的Cu_(7-x)Ni_(x)Ti_(3)合金均以匀晶析出的τ_(1)-CuNiTi为主要相。
To develop high-performance and low-cost Cu-Ti based brazing filler materials,the effect of Ni content on the as-cast microstructure and soli-dification process of the Cu_(7-x)Ni_(x)Ti_(3) alloys and their interface reaction with alumina were investigated in the present work.It was found that all the Cu_(7-x)Ni_(x)Ti_(3) alloys with addition(atomic fraction)of 20%—50%Ni are mainly composed of uniformly precipitated τ_(1)-CuNiTi phase.Ni content in theτ_(1) phase increases with it in the alloy.At the same time,the FCC and Cu 4Ti phases,which exists in alloys with 20%—30%Ni,gra-dually decrease until they disappeared,and the alloy hardness gradually increases.
作者
蔡易霖
吴长军
刘亚
朱翔鹰
苏旭平
CAI Yilin;WU Changjun;LIU Ya;ZHU Xiangying;SU Xuping(Key Laboratory of Materials Surface Science and Technology of Jiangsu Province Higher Education Institutes,Changzhou University,Changzhou 213164,Jiangsu,China;Jiangsu Collaborative Innovation Center of Photovoltaic Science and Engineering,Changzhou University,Changzhou 213164,Jiangsu,China)
出处
《材料导报》
北大核心
2026年第3期200-206,共7页
Materials Reports
基金
国家自然科学基金(52271005)。
关键词
Cu-Ni-Ti
氧化铝
凝固组织
钎料
界面反应
热力学计算
Cu-Ni-Ti
alumina
solidification microstructure
brazing
interfacial reaction
thermodynamic calculation
