化学镀Ni-P合金涂层及其耐磨性

ELECTROLESS Ni-P ALLOY PLATINGS AND THEIR WEAR RESISTANCE

对化学镀 Ni- P的硬度和耐磨性的关系进行了研究。低温长时加热可以获得高硬度 ,继续保温后其值不变。高温加热硬度达最大硬度以后保温硬度降低。不同温度处理其最大值相同 ,但耐磨性不同 ,高温处理优于低温处理。

The relationship of hardness and wear resistance of electroless Ni P alloy plating was studied. High hardness of plating could be obtained at low temperature for a long term, and was not changed after attained maximum. Hardness was decreased after maximum by high temperature heating. The maximum hardness was the same attained by heat treatment at different temperatures, the wear resistance was different, however,so it was better treated at higher tmeperatures. X ray photoelectron spectroscopic analysis showed that the phosphorus content on the surface was much more than that at the substrate of Ni P plating.