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Ti₃Al基合金的真空钎焊

Vacuum Brazing of Ti₃Al-based Alloy

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【Author】 ZHOU Heng1, LI Hong-wei2, FENG Ji-cai3(1.Beijing General Research Institute of Mining and Metallurgy, Beijing 100044, China; 2.Beijing Hangxing Machine Manufacturing Company, Beijing 100013, China; 3.State Key Laboratory of Advanced Welding Production Technology, Harbin Institute of Technology, Harbin 150001, China)

【机构】北京矿冶研究总院；北京航星机器制造公司；哈尔滨工业大学现代焊接生产技术重点实验室北京100044；北京100013；哈尔滨150001；

【摘要】研究用AgCuZn钎料真空钎焊Ti3Al基合金的过程,分析界面组织微观结构、接头室温强度与钎焊连接参数之间的关系。结果表明,利用AgCuZn钎料可实现Ti3Al基合金的连接,在界面处有明显的层状结构,由金属间化合物TiCu,Ti(Cu,Al)2和Ag基固溶体组成,反应层的厚度的成长模型为X2=2.13×10-5exp(-170/RT)t。更多还原

【Abstract】 The vacuum brazing process of Ti₃Al-based alloy with Ag-Cu-Zn brazing filler metal is investigated, and the relationship of the microstructures and strength of joints with brazing parameters is analyzed. The results show that the bonding of Ti₃Al-based alloy can be accomplished by Ag-Cu-Zn brazing filler metal, the interfacial structure between Ti₃Al-based alloy is composed of TiCu, Ti （Cu, Al）₂ and Ag solid solution. The development of the reaction layer thickness is described as X2=2.13×10 -5exp（-170/RT）t.更多还原