| Zr对ZA35合金电化学腐蚀行为的影响 |
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| 引用本文： | 刘敬福,李荣德,宋建,白彦华.Zr对ZA35合金电化学腐蚀行为的影响[J].铸造,2012,61(3):308-311. |
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| 作者姓名： | 刘敬福 李荣德 宋建 白彦华 |
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| 作者单位： | 1. 辽宁工程技术大学材料学与工程学院,辽宁阜新123000;沈阳工业大学材料科学与工程学院,辽宁沈阳110870
2. 沈阳工业大学材料科学与工程学院,辽宁沈阳,110870 |
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| 基金项目： | 国家自然科学基金资助项目(50874075);沈阳市科研项目(F10-205-1-49) |
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| 摘 要： | 为了探索Zr对ZA35合金电化学腐蚀性能的作用规律,采用开路电位测定、动电位扫描技术对不同Zr含量的ZA35合金的耐蚀性进行了研究.结果表明,电化学腐蚀条件下,在3.5％NaCl溶液中,与ZA35合金相比,添加0.2％ Zr的ZA35-0.2％Zr合金的开路电位变正,腐蚀电流密度减小59.4％,耐腐蚀性增强.Zr对ZA35合金晶粒的细化和改变电极反应生成有保护性的腐蚀产物是提高ZA35合金耐电化学腐蚀性的主要因素.
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| 关 键 词： | ZA35合金 Zr 电化学腐蚀 腐蚀电流密度 |
Effects of Zr on Electrochemical Corrosion Behavior of ZA35 Alloy |
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| LIU Jing-fu
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LI Rong-de
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SONG Jian
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BAI Yan-hua.Effects of Zr on Electrochemical Corrosion Behavior of ZA35 Alloy[J].Foundry,2012,61(3):308-311. |
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| Authors: | LIU Jing-fu LI Rong-de SONG Jian BAI Yan-hua |
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| Affiliation: | 1.School of Materials Science and Engineering,Liaoning Technical University,Fuxin 123000,Liaoning,China; 2.School of Materials Science and Engineering,Shenyang University of Technology,Shenyang,110870,Liaoning,China) |
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| Abstract: | In order to explore the influence of Zr on electrochemical property of ZA35 alloy,the effects of Zr on electrochemical corrosion behavior of ZA35 alloy in 3.5%NaCl solution were studied by open circuit potential test and potentiodynamic scanning.The results show that under the electrochemical corrosion,the open circuit potential of ZA35-0.2%Zr alloy changes to positive and the corrosion current density decreases 59.4% compared with ZA35 alloy in 3.5%NaCl solution,and the corrosion resistance of the alloy enhances obviously.The corrosion resistance improvement of ZA35-0.2Zr alloy can be attributed to grain refinement and protective corrosion product generated from the change of electrode reaction. |
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| Keywords: | ZA35 alloy Zr electrochemical corrosion corrosion current density |
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