| 合金元素对ZA27合金耐腐蚀性的影响 |
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| 引用本文： | 庞兴志,许征兵,何欢,李逸泰,曾建民.合金元素对ZA27合金耐腐蚀性的影响[J].铸造技术,2012,33(6):648-651. |
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| 作者姓名： | 庞兴志 许征兵 何欢 李逸泰 曾建民 |
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| 作者单位： | 广西大学有色金属及加工新技术教育部重点实验室,广西南宁,530004 |
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| 基金项目： | 广西大学科研基金项目(X071064);广西大学有色金属及加工新技术教育部重点实验室开放基金项目(GXKFJ09-08) |
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| 摘 要： | 在质量分数为35％的NaCl水溶液中,用PS-168C电化学测量系统分别测定了合金元素含量(w)分别为3.0％Cu、0.06％Mg、0.1％Si、0.75％Mn、0.2％Sb和0.1％Sn的ZA27合金,以及不含合金元素的二元ZA27合金的自腐蚀电位、线性极化电阻、自腐蚀电流和塔菲尔常数等电化学参数.在扫描电镜下观察了各合金腐蚀前后的形貌.结果表明,所加入的合金元素均降低了ZA27的耐蚀性能,其中锡的影响最大.
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| 关 键 词： | ZA27合金 电化学参数 耐腐蚀性 |
Effect of Alloy Elements on Corrosion Resistance of ZA27 Alloy |
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| PANG Xing-zhi
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XU Zheng-bing
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HE Huan
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LI Yi-tai
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ZENG Jian-min.Effect of Alloy Elements on Corrosion Resistance of ZA27 Alloy[J].Foundry Technology,2012,33(6):648-651. |
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| Authors: | PANG Xing-zhi XU Zheng-bing HE Huan LI Yi-tai ZENG Jian-min |
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| Affiliation: | (Key Laboratory of Education Ministry in Non-ferrous Metals and New Processing Technology,Guangxi University,Nanning 530004,China) |
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| Abstract: | The electrochemical parameters of seven ZA27 alloys,which contains(mass fraction) 3.0%Cu,0.06%Mg,0.1%Si,0.75%Mn,0.2%Sb,0.1%Sn and no alloy element,respectively,such as self-corrosion potential,linear polarization resistance,self-corrosion current and Tafel constant,were measured by using PS-168C electrochemistry measurement system in 3.5%NaCl solution.The surface morphology of the samples before and after corrosion test was observed by scanning electron microscopy.The results show that all the elements mentioned above,especially Sn,decrease the corrosion resistance of ZA27 alloy. |
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| Keywords: | ZA27 alloy electrochemical parameters corrosion resistance |
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