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Ag-Ni系合金具有优良的机械强度、耐磨损和抗烧损等特性,广泛用于制作中、小型负荷的电触点材料。由于Ag和Ni固态几乎互不相溶,Ag-Ni系合金不能采用常规的合金化熔炼方式制作,通常采用粉末冶金法制备。但是随着Ni在Ag中含量的增加,Ni的均匀性下降,Ni、Ag粉末颗粒的大小不均使均匀性问题更为严重。为了解决Ag-Ni系合金成分均匀性问题,1977年《贵金属》杂志上发表的“Ag-10Ni-RE合金材料”一文,就是在Ag-10Ni合
Ag-Ni alloy has excellent mechanical strength, wear resistance and burning resistance and other characteristics, are widely used in the production of medium and small load electrical contact materials. Due to Ag and Ni solid state almost mutually immiscible, Ag-Ni alloy can not be produced by conventional alloying smelting, usually prepared by powder metallurgy. However, with the increase of Ni content in Ag, the homogeneity of Ni decreases, and the uniformity of Ni and Ag powder particles becomes more and more serious. In order to solve the problem of the composition uniformity of Ag-Ni alloy, the article “Ag-10Ni-RE alloy material” published in “Precious Metals” in 1977 is that in the Ag-10Ni alloy