机械合金化制备AgCuTiSn钎料

Manufacture of AgCuTiSn filler metal by mechanical alloying

机械合金化(MA)是一种制备材料的固态非平衡加工技术。采用这种技术制备了AgCuTiSn四元体系钎料。采用XRD、SEM等分析手段研究了球磨时间、球料比等参数对机械合金化产物的影响。结果表明,利用MA方法制备钎料,随着球磨时间的延长,粉末颗粒度下降,元素固溶度增加,可以使难溶或不互溶的体系达到一定程度的互溶,元素分布均匀,钎料更易发生合金化反应。采用5:1的球料比是较合适的。MA也是合成钎料很有前途的一种技术。

Mechanical alloying(MA) is developed as a solid non-equilibrium technology for materials production. The technology was applied to prepare AgCuTiSn filler metal in this paper. The effect of parameters such as ball milling time, ratio of grinding media to material on the mechanical alloying production was analyzed by means of XRD, SEM method. The experimental results indicate that the graininess decrease and element solution increase with the increase of ball milling time during the production of filler metal by MA method. Thus, certain solution is achieved between indissolvable and immiscible systems. The distribution of elements is equal and the alloying reaction tends to occur in the filler metal. The optimal ratio of grinding media to material is 5: 1. The production of filler metal by MA method was a promising method.