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Study on characteristics of thick chromium deposit from trivalent chromium sulfate solutions
Author(s): 
Pages: 8-11
Year: Issue:  6
Journal: Electroplating & Finishing

Abstract: 探讨了三价铬硫酸盐溶液镀厚铬的工艺条件,测试了镀层的耐磨性能和硬度,并分别采用差示扫描量热仪(DSC)和X射线衍射仪(XRD)对铬镀层的表面形貌和晶型进行了表征.结果表明,在电流密度8~10A/dm2、电镀温度30~40℃的条件下电镀60~90min,可获得厚度超过30 μm的铬镀层;镀层的耐磨性能优于六价铬溶液电镀获得的铬镀层:硬度随热处理温度升高而增加,在500 ℃时达到1 090 HV;铬镀...
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