The conversion film obtained by the process is yellow and has good corrosion resistance with an corrosion potential in the passivation region of 600 mV and maintaining passivity current density of 5.
所制备转化膜的颜色为金黄色,电化学极化曲线测试表明该转化膜具有优良的耐蚀性,钝化区间电位达到600mV,维钝电流密度仅为5。