于湘,俞志东,程丽华,李燕.MoO42-与 Zn2+对镁合金在 NaCl 溶液中的协同缓蚀作用[J].表面技术,2013,42(1):35-38.
YU Xiang,YU Zhi-dong,CHENG Li-hua,LI Yan.Corrosion Inhibition Performance of Magnesium Alloy by MoO42-in Combination with Zn2+in NaCl Solution[J].Surface Technology,2013,42(1):35-38 |
| MoO42-与 Zn2+对镁合金在 NaCl 溶液中的协同缓蚀作用 |
| Corrosion Inhibition Performance of Magnesium Alloy by MoO42-in Combination with Zn2+in NaCl Solution |
| 投稿时间：2012-10-08 修订日期：2012-11-06 |
| DOI： |
| 中文关键词: 镁合金 钼酸盐 Zn 离子 缓蚀作用 |
| 英文关键词:magnesium alloy molybdate zinc ion corrosion inhibitor |
| 基金项目:超轻材料与表面技术教育部重点实验室开放基金(20111009) ;广东石油化工学院自然科学基金(510009) |
| 作者 | 单位 |
| 于湘 | 广东石油化工学院 化工与环境学院, 茂名 525000 |
| 俞志东 | 广东石油化工学院 化工与环境学院, 茂名 525000 |
| 程丽华 | 广东石油化工学院 化工与环境学院, 茂名 525000 |
| 李燕 | 广东石油化工学院 化工与环境学院, 茂名 525000 |
|
| Author | Institution |
| YU Xiang | College of Chemical and Environmental Engineering, Guangdong University of Petrochemical Technology, Maoming 525000 , China |
| YU Zhi-dong | College of Chemical and Environmental Engineering, Guangdong University of Petrochemical Technology, Maoming 525000 , China |
| CHENG Li-hua | College of Chemical and Environmental Engineering, Guangdong University of Petrochemical Technology, Maoming 525000 , China |
| LI Yan | College of Chemical and Environmental Engineering, Guangdong University of Petrochemical Technology, Maoming 525000 , China |
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| 中文摘要: |
| 采用动电位极化曲线法,结合腐蚀后的表面微观形貌及 EDS 能谱分析,研究了 MoO42-与 Zn2+对AZ31 镁合金在 3 . 5% NaCl 溶液中的协同缓蚀性能。 结果表明:0 . 005 mol / L Zn2+与 0 . 05 mol / L 钼酸钠联合作用,可有效抑制镁合金在 NaCl 溶液中的腐蚀,Zn2+促进 MoO42-在合金表面的吸附,缓蚀效果优于单一的钼酸盐缓蚀剂。 缓蚀机制是:钼酸盐与 Zn2+协同作用,使镁合金表面形成更为致密的钝化膜,从而抑制镁合金的腐蚀。 |
| 英文摘要: |
| The inhibition performance and mechanism of molybdate in combination with Zn2+as inhibitors for magnesium alloy were studied in 3 . 5 % NaCl solution by using potentiodynamic polarization curves. The results show that the synergistic inhibition by 0 . 05 mol / L molybdate in combination with 0 . 005 mol / L Zn2+demonstrates strong inhibition to the corrosion of AZ31 magnesium alloy exposed to NaCl solution. The adsorption acting of MoO42-is promoted on the alloy surface by Zn2+,what hold better resistance performance than that of single molybdate corrosion inhibitor. The mixture consisting of molybdate and Zn2+is an inhibitor through forming a compact protective layer that covered the magnesium alloy surface. |
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