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OALib Journal期刊
ISSN: 2333-9721
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cr颗粒含量对ni--cr纳米复合镀层组织结构的影响
Keywords: 复合材料,？复合电镀,ni--cr纳米复合镀层,组织结构
Abstract:
？使用ni与纳米cr颗粒共沉积方法制备ni--cr纳米复合镀层,研究了镀液中cr颗粒浓度、搅拌强度和阴极电流密度等工艺参数对镀层中沉积cr量的影响.结果表明:镀层中纳米cr颗粒的复合改变了电沉积ni的生长方向,ni晶粒由原来沿(200)晶面取向生长,转变为沿(200)、(111)和(220)晶面均匀生长.镀层中cr复合量越多,ni晶粒的形核位置越多,ni晶粒越细化.也探讨了ni--cr纳米复合镀的沉积机理.
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