耐海水腐蚀球墨铸铁成分优化设计及其抗蚀性能

崔君军, 张雅静, 王琳琳, 陈晓刚, 张国志

Chemical Composition Optimization and Sea Water Corrosion Resistance of a Ductile Cast Iron

CUI Junjun, ZHANG Yajing, WANG Linlin, CHEN Xiaogang, ZHANG Guozhi

表2 试样VI及VII和普通球铁在不同腐蚀周期的自腐蚀电位和自腐蚀电流

Table 2 Corrosion potentials and currents of sample VI, VII and ordinary nodular cast iron before and after corrosion

Samples Ordinary nodular cast iron No. VI No. VII Before corrosion Ecorr / V -0.634 -0.615 -0.541 icorr / 10-5 A 2.554 1.433 1.188 After orrosion for 16 d Ecorr / V -0.839 -0.722 -0.733 icorr / 10-5 A 50.94 6.356 3.831