Ca-P涂层和Sr-P涂层对脉冲磁场下凝固的Mg-Zn-Zr-Gd合金耐蚀性的影响

毛训聪, 陈乐平, 彭聪

Effect of Chemical Conversion Coatings Ca-P and Sr-P on Corrosion Resistance of Mg-Zn-Zr-Gd Alloy Cast After Solidifying by Pulsed Magnetic Field

MAO Xuncong, CHEN Leping, PENG Cong

表3 脉冲磁场处理试样阻抗曲线的电路拟合结果

Table 3 Circuit fitting results of pulsed magnetic field processing of specimen impedance curves

Sample Rs / Ω·cm2 Q-Yo Q-n R1 / Ω·cm2 Q-Yo Q-n R2 / Ω·cm2 R3 / Ω·cm2 L M1 34.23 3.551×10-5 0.456 1.368×102 1.226×105 0.749 4.007×103 6.929×103 29.03 M9 32.23 7.492×10-6 0.827 3.555×103 6.077×105 0.374 2.287×102 1.173×102 5.018 Ca-P-M1 10.66 7.238×10-7 0.900 5.307×103 2.736×107 0.681 1.165×1014 1.177×103 2.570×103 Ca-P-M9 1.007×10-7 9.538×10-7 0.799 7.803×103 2.531×108 0.837 1.619×103 1.450×107 32.09 Sr-P-M1 1.929×10-4 7.737×10-9 0.951 4.876×104 6.082×108 0.794 6.948×105 - - Sr-P-M9 7.064×10-5 2.819×10-8 0.891 1.613×105 1.289×107 0.829 9.811×105 - -