热等静压制备硬质材料的耐磨耐腐蚀性能分析

Analysis of wear resistance and corrosion resistance of hard materials prepared by hot isostatic pressing

硬质耐磨层是核电机主轴上的重要部件,对其耐磨、耐腐蚀性能都有较高的要求。采用热等静压工艺制备钴基合金Co-1、Co-2(钨含量增加)、镍基合金Ni-1作为测试材料,并通过盘-盘摩擦试验和电化学腐蚀试验对材料进行性能分析。结果表明:钴基合金Co-2的摩擦因数0.08,点蚀电位0.55 V,更加适合作为耐磨层材料。

The wear-proof layer of hard materials is an important component of the nuclear motor spindle. It has high requirements for material properties in wear resistance and corrosion resistance. Cobalt-based alloy Co-1,Co-2(increased tungsten content)and nickel-based alloy Ni-1 were prepared by hot isostatic pressing process. The performance of the material was analyzed by disc-to-disc friction test and electrochemical corrosion test. The results show that the Co-based alloy Co-2 has a friction factor of 0.08 and a pitting potential of 0.55 V, which is more suitable as a wear-resistant layer material.