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| Corrosion resistance of benzotriazole passivated Cu-Zn-Alshape memory alloy in artificial Ringer's solution | |
| 引用本文： | LIANG Chenghao,CHEN Bangyi,CHEN Wan,and WANG Hua State Key laboratory of Fine Chemicals,School of Chemical Engineering,Dalian University of Technology,Dalian 116012,China. Corrosion resistance of benzotriazole passivated Cu-Zn-Alshape memory alloy in artificial Ringer's solution[J]. 稀有金属(英文版), 2005, 24(3) |
| 作者姓名： | LIANG Chenghao CHEN Bangyi CHEN Wan and WANG Hua State Key laboratory of Fine Chemicals School of Chemical Engineering Dalian University of Technology Dalian 116012 China |
| 作者单位： | LIANG Chenghao，CHEN Bangyi，CHEN Wan，and WANG Hua State Key laboratory of Fine Chemicals，School of Chemical Engineering，Dalian University of Technology，Dalian 116012，China |
| 基金项目： | The project was financially supported by the State Key Laboratory for Corrosion and Protection of China. |
| 摘 要： | 1 IntroductionThe shape memory alloy (SMA) is a novel func-tional material, which combines recognition behav-ior with driving capability. Among SMAs, the Ti-NiSMA possesses shape memory effect, superelastic,well wear resistance, and low elastic modulus. A… |
Corrosion resistance of benzotriazole passivated Cu-Zn-Al shape memory alloy in artificial Ringer''''s solution |
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| LIANG Chenghao,CHEN Bangyi,CHEN Wan,WANG Hua. Corrosion resistance of benzotriazole passivated Cu-Zn-Al shape memory alloy in artificial Ringer''''s solution[J]. Rare Metals, 2005, 24(3) | |
| Authors: | LIANG Chenghao CHEN Bangyi CHEN Wan WANG Hua |
| Affiliation: | State Key laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian 116012, China |
| Abstract: | The corrosion resistance of the Cu-Zn-Al shape memory alloy passivated by benzotriazole was investigated bysalt spraying test and electrochemical methods in artificial Ringer's solution. The results showed that after benzotriazolepassivation, the corrosion resistance of the Cu-Zn-Al shape memory alloy was improved evidently. The anodic polarizationcurrent density of the passivated alloy decreased, the mass loss reduced, the anodic passivation accelerated, the anodic ac-tive dissolution was inhibited effectively, and the surface tarnishing was restrained. Infrared reflection spectrum test showedthat Cu(l)-benzotriazole or Cu(II)-benzotriazole complex layer was formed on the surface of the Cu-Zn-Al shape memoryalloy after passivation. This layer appeared plane, well adhesion, and presented homogeneous golden metallic luster. Thecorrosion resistance of the Cu-Zn-Al shape memory alloy passivated by benzotriazole is improved for the formation of anelectrochemical stable baffle layer on passivated surface. This layer separates the metal substrate from the outside corrosionmedium effectively and retards the corrosion process of dezincification. |
| Keywords: | surface modification corrosion resistance electrochemical method Cu-Zn-Al shape memory alloy benzotri-azole passivation |
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