【摘要】 论述了适合于热海水环境下工作的几种锌牺牲阳极的研究工作.研究中就Cd、Al和Mg等微量元素对牺牲阳极性能的影响进行了电化学性能测试,之后对其腐蚀表面进行了组织分析.试验结果表明:含Al、Mg的锌阳极都存在严重的晶间腐蚀问题,而晶间腐蚀是缩短热海水环境下锌阳极使用寿命的重要因素;Cd(0.05%)对锌阳极性能有改善作用.更多还原

【Abstract】 A piece of research on some kinds of zinc anodes used under the condition of hot seawater was described.During the research the electrochemical influence of some microelements ( such as Cd,Al and Mg) on the anodes was tested.After that an organization analysis of the corrosion surface was made.The results of the experiment indicate that there is a serious problem of the intergranular corrosion in the zinc anodes which contain Al and Mg,while the intergranular corrosion is one of the important factors reducing the longevity of service of zinc anodes under the environment of hot seawater;besides,Cd will improve the properties of zinc anodes.更多还原