1、前言金属的钝化现象是从Faraday时代就开始研究的老课题。特别是近三十年来,从提高金属材料耐蚀性的角度来看,钝化现象又重新引起重视,在其基础和应用方面的研究均获得了进展。用恒电位法测定出金士钝化的阳极极化曲线,如图1所示。它能清楚地 1, Introduction Metal passivation is an old topic that has been studied since the Faraday era. In recent 30 years, from the perspective of improving the corrosion resistance of metal materials, the phenomenon of passivation re-attaches importance again, and the research on its basic and application progress has been made. The potentiostatic method was used to determine the anodic polarization curve of Schmidt, as shown in Fig.1. It can be clearly