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稀土元素在电沉积Ni-P基镀层中的作用 总被引:2,自引:0,他引:2
Ni-P合金镀层具有硬度高,耐磨性好,抗蚀性强,镀液排出物对环境污染少等一系列优点。若在Ni-P镀层中共沉积高硬度耐磨的SiC或WC颗粒。形成一种优质耐磨的Ni-P基复合镀层,则对延长摩擦件的使用寿命具有明显的优越性。复合 相似文献
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研究了电刷镀Ni-P合金镀层的制备工艺,检验服镀层的耐蚀性和硬度等性能。结果表明Ni-P合金镀层具有优良的耐蚀性,并成功地获得了耐磨复合镀层。 相似文献
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The Ni-Fe alloy coatings were prepared by electro-deposited method, and the effects of the saccharin content in the electrolytes on the microstructure of the coatings were studied by using X-ray diffractometry(XRD), scanning electron microscopy(SEM) and transmission electron microscopy(TEM). The results show that the saccharin content in the bath affects the plating rates and the current efficiency remarkably. As the saccharin content increases, the grain size of the Ni-Fe alloys decreases. The average grain size of the deposits varies from 13 nm to 10.8 nm as the saccharin content increases from 0 g/L to 8 g/L. Accordingly, the microhardness of the as-cold deformed samples increases from Hv 600 to Hv 656. 相似文献
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电沉积厚层Ni—Fe合金的研究 总被引:1,自引:0,他引:1
研究了氨基磺酸盐电沉积Ni-Fe合金电解液的性质及镀层的性能。测定了电流密度,添加剂,杂质对镀层性能的影响,确立了电解液的配方及工艺参数。结果表明:在PH=3-3.6,Dk=3-6A/dm^2,,T=55-65℃条件下可获得沉积速率达1μm/min,结合力良好的Ni-Fe合金镀层,而且一次性镀厚可达1.5mm以上。 相似文献