Ce(NO3)2浓度及硅酸盐封孔处理对高铁枕梁用Mg-Zn-Y-Ca合金表面钙系磷化膜的影响

周殿买, 姜磊, 王美婷, 梁洪嘉, 肖云龙, 郑黎, 于宝义

Effects of Ce(NO3)2 Concentration and Silicate Sealing Treatment on Calcium Phosphating Film on Surface of Mg-Zn-Y-Ca Alloy for High Speed Railway Corbel

ZHOU Dianmai, JIANG Lei, WANG Meiting, LIANG Hongjia, XIAO Yunlong, ZHENG Li, YU Baoyi

表3 基材及不同Ce(NO3)2浓度下钙系磷化试样的极化拟合结果

Table 3 Polarization fitting results of substrate and calcium phosphating samples at different concentrations of Ce(NO3)2

Concentration g·L-1 Corrosion current density Icorr / A·cm-2 Corrosion potential Ecorr / V Base material 4.416×10-3 -1.507 0 4.007×10-5 -1.476 0.4 3.910×10-5 -1.306 0.8 9.625×10-6 -1.498 1.2 1.589×10-5 -1.389 1.6 2.630×10-5 -1.354 2.0 4.443×10-5 -1.445