在马氏体不锈钢中加入氮合金,并通过铌、钒、钛固氮形成氮合金化堆焊硬面合金,进行了电化学腐蚀和化学侵蚀实验,研究了硬面合金的耐腐蚀性能.结果表明:堆焊硬面合金的氮合金化,抑制了铬的碳化物的析出,有效增强了钝化膜的稳定性,使硬面合金的自腐蚀电位从-345mV提高到-264mV,增强了堆焊硬面合金抗电化学腐蚀性能;氮合金化堆焊硬面合金均匀细小的组织形态,使得在FeCl3溶液中发生点蚀的蚀坑小且分散,提高了硬面合金的耐腐蚀性能.
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