Abstract：In this paper, different Ni elements were added in the Cu-Ni-Ag alloy, and gas atomized alloy powders were used to manufacture bulk sample by hot pressing, rolling and annealing. The results indicated that the Cu-Ni-Ag alloy with high strength and good plasticity has been successfully fabricated by composition and microstructure optimization. The main strengthening mechanisms of Cu-Ni-Ag alloy are solution strengthening and dislocation strengthening. The solution strengthening effect of Ni is significant, but the solution solubility of Ag in the alloy is reduced by Ni. The number of Ag-rich precipitates increases with the increase of Ni content. The precipitated phase can further enhance the strength by pinning grain boundaries and impeding dislocation movement.
王靖瑛, 吕信群, 陈仕奇, 高阳, 刘咏. Ni含量对Cu-Ni-Ag合金固溶强化行为的影响[J]. 粉末冶金材料科学与工程, 2021, 26(3): 263-271.
WANG Jingying, LÜ Xinqun, CHEN Shiqi, GAO Yang, LIU Yong. Effect of Ni content on the solid solution strengthening behavior of Cu-Ni-Ag alloys. Materials Science and Engineering of Powder Metallurgy, 2021, 26(3): 263-271.
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2021, Vol. 26 
