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金属基复合材料钎焊与液相扩散焊焊接区增强体/基体界面演变行为及其对接头强度的影响
Evolution Behavior of Interface Between Reinforcement and Matrix and Its Effects on Strength of Brazed and Transient Liquid Phase Bonded Joint of MMC
【摘要】 综述了金属基复合材料中增强体/基体(R/M)界面接合类型,对比了焊接条件下与制备条件下R/M界面结合特征的差别。据此首次提出将界面分为一次界面与二次界面的分类方法;进而提出了钎焊与液相扩散焊热循环中R/M界面演变行为模式,即一次界面的损伤/解体与二次界面的重建。讨论了R/M界面演变行为及其对接头强度的直接与间接影响。
【Abstract】 The types of reinforcement/matrix(R/M) interface bonding in metal matrix composite(MMC) were reviewed,and the differences in the interfacial bonding characteristics between prior-joining and post-joining were compared.Based on above analysis,the interface was classified into the primary interface and secondary interface;then the interface evolution model during the thermal cycle in brazing and transient liquid phase bonding was proposed,which consists of the damage/failure of the primary interface and the restoration of the secondary interface.Furthermore,the interface evolution behavior and its direct and indirect effects on joint strength were discussed.
【Key words】 metal matrix composite; brazing; transient liquid phase bonding; interface evolution;
- 【文献出处】 热加工工艺 ,Hot Working Technology , 编辑部邮箱 ,2007年23期
- 【分类号】TG407
- 【被引频次】1
- 【下载频次】297