采用复合电镀技术,通过向普通电镀溶液中分别加入平均粒度约40nm和1～5μm Cr粉的方法,在Ni基材上制备了2种金属Ni基纳米Cr粒子弥散的Ni-Cr复合镀层(简称为ENCCs Ni-Cr)和1种微米Cr粒子弥散的Ni-Cr复合镀层(简称为EMCCsNi-Cr).750℃氧化对比实验结果表明:在相同的Cr颗粒含量条件下,Cr颗粒尺寸的减小明显提高了Ni-Cr复合镀层的抗氧化性能;在相同的Cr颗粒含量条件下,Cr颗粒越细,Ni-Cr复合镀层的氧化性能越好.
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