| 化学镀镍磷表面改性Cu-Zn-Al形状记忆合金的腐蚀行为 |
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| 引用本文： | 梁成浩,陈邦义,陈婉,王华. 化学镀镍磷表面改性Cu-Zn-Al形状记忆合金的腐蚀行为[J]. 腐蚀科学与防护技术, 2004, 16(2): 63-66 |
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| 作者姓名： | 梁成浩 陈邦义 陈婉 王华 |
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| 作者单位： | 1. 大连理工大学化工学院,大连,116012;金属腐蚀与防护国家重点实验室,沈阳,110016
2. 大连理工大学化工学院,大连,116012 |
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| 基金项目： | 辽宁省自然科学基金资助项目 (972 2 10 ) |
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| 摘 要： | 采用电化学方法研究了Cu-Zn-Al形状记忆合金(SMA)及其化学镀镍磷表面改性试样在Tyrode's人工体液中的腐蚀行为.结果表明，在Tyrode's人工体液中Cu-Zn-Al SMA发生脱锌腐蚀.化学镀镍磷Cu-Zn-Al SMA随NaCl浓度增加、pH值降低、环境温度升高，阳极活性电流密度增大，电化学溶解敏感性增强.X-射线衍射分析结果表明，Cu-Zn-Al SMA表面化学镀镍磷后，形成了非晶态镀层，其在Tyrode's人工体液中的耐蚀性显著提高；这是由于改性表面形成均匀、稳定的阻碍性镀层，有效地将基体金属和外界腐蚀介质隔绝而达到防护作用.镀镍磷
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| 关 键 词： | 记忆合金 人工体液 腐蚀 |
| 文章编号： | 1002-6495(2004)02-0063-04 |
| 收稿时间： | 2003-01-05 |
| 修稿时间： | 2003-01-05 |
CORROSION BEHAVIOR OF Cu - Zn - Al SHAPE MEMORY ALLOY WITH ELECTROLESS NICKEL PLATING |
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| LIANG Cheng-hao ,,CHEN Bang-yi,CHEN Wan,WANG Hua .School of Chemical Engineering,Dalian University of Technology,Dalian ,China, .State Key Laboratory for Corrosion and Protection,Shenyang ,China. CORROSION BEHAVIOR OF Cu - Zn - Al SHAPE MEMORY ALLOY WITH ELECTROLESS NICKEL PLATING[J]. Corrosion Science and Protection Technology, 2004, 16(2): 63-66 |
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| Authors: | LIANG Cheng-hao CHEN Bang-yi CHEN Wan WANG Hua .School of Chemical Engineering Dalian University of Technology Dalian China .State Key Laboratory for Corrosion Protection Shenyang China |
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| Affiliation: | LIANG Cheng-hao 1,2,CHEN Bang-yi1,CHEN Wan1,WANG Hua1 1.School of Chemical Engineering,Dalian University of Technology,Dalian 116012,China, 2.State Key Laboratory for Corrosion and Protection,Shenyang 110016,China |
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| Abstract: | The corrosion behavior of Cu-Zn-Al shape memory alloys (SMA) with and without electroless nickel plating was investigated by electrochemical methods in artificial Tyrode's solution.The results showed that Cu-Zn-Al suffered from engendered dezincification corrosion in Tyrode's solution.The anodic active current densities as well as electrochemical dissolution sensitivity of the electroless nickel plated Cu-Zn-Al SMA increased with the increasing NaCl concentration,decreasing pH value and rising temperature of the solution.X-ray diffraction analysis indicated that after electroless nickel plating,an amorphous film formed on the surface of Cu-Zn-Al SMA.This film can effectively isolate the matrix metal from corrosion media and significantly improve the corrosion resistance of the Cu-Zn-Al SMA in artificial Tyrode's solution. |
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| Keywords: | Cu-Zn-Al shape memory alloy artificial Tyrode's solution corrosion behavior electroless nickel plating |
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