在1.8 ks, 1 073 K～1 173 K条件下对Al2O3/(Ag72Cu28)97Ti3/Ti-6Al-4V进行了钎焊试验. 通过扫描电镜、波谱、能谱、 X射线衍射对界面结构进行了分析. 小于1 123 K的界面结构为Al2O3/Cu2Ti4O/Cu4Ti3/Ag-Cu共晶+富Ag相+Ti固溶体; 1 173 K的界面结构为Al2O3/Cu3TiO5+CuAl2O4/Cu4Ti3/富Ag相. 采用拉剪试验测试了接头剪切强度. 在1.8 ks, 1 123 K时剪切强度最高达到189 MPa, 大于或小于1 123 K接头强度呈下降趋势.
参考文献
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