| 摘要 |
PROBLEM TO BE SOLVED: To obtain a cobalt-nickel alloy material by an electrodeposition method, the material having remarkably improved properties of abrasion resistance, anticorrosion, tensile strength, and extension.SOLUTION: A cobalt-nickel alloy material contains inevitable impurities and has a unique layer constitution formed by alternately laminating a layer of high nickel content and a layer of low nickel content. The alloy having a laminated structure is manufactured by an electrodeposition method using a single plating solution. The difference of nickel content is 1-20 wt% between the layer of high nickel content and the layer of low nickel content. The thickness of the layer of high nickel content and the layer of low nickel content is each 1-500 μm, preferably 5-100 μm. The layer thickness ratio is in the range from 1:1 to 1:10. |
