| 泡沫SiC/Cu双连续相复合材料在NaCl溶液中的腐蚀行为 |
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| 引用本文： | 李凤歧,田冲,曹小明,张劲松.泡沫SiC/Cu双连续相复合材料在NaCl溶液中的腐蚀行为[J].中国腐蚀与防护学报,2011(2). |
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| 作者姓名： | 李凤歧 田冲 曹小明 张劲松 |
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| 作者单位： | 中国科学院金属研究所; |
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| 摘 要： | 用腐蚀失重法和电化学阻抗谱研究了泡沫SiC/Cu双连续相复合材料和对应的基体材料纯Cu在3.5%NaCl水溶液中的腐蚀行为。结果表明,在3.5%NaCl水溶液中,泡沫SiC/Cu双连续相复合材料比纯基体Cu具有更大的腐蚀敏感性,主要原因是该复合材料的特殊结构及残余应力的存在致使泡沫筋微孔中的Cu严重腐蚀。
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| 关 键 词： | SiC/Cu双连续相复合材料 腐蚀失重 阻抗谱 残余应力 |
CORROSION BEHAVIOR OF FOAMED SiC/Cu CO-CONTINUOUS COMPOSITE IN NaCl AQUEOUS SOLUTION |
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| LI Fengqi,TIAN Chong,CAO Xiaoming,ZHANG Jinsong Institute of Metal Research,Chinese Academy of Sciences,Shenyang.CORROSION BEHAVIOR OF FOAMED SiC/Cu CO-CONTINUOUS COMPOSITE IN NaCl AQUEOUS SOLUTION[J].Journal of Chinese Society For Corrosion and Protection,2011(2). |
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| Authors: | LI Fengqi TIAN Chong CAO Xiaoming ZHANG Jinsong Institute of Metal Research Chinese Academy of Sciences Shenyang |
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| Affiliation: | LI Fengqi,TIAN Chong,CAO Xiaoming,ZHANG Jinsong Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016 |
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| Abstract: | The corrosion behavior of the foamed SiC/Cu co-continuous composite and the corresponding matrix Cu in 3.5%NaCl aqueous solution was investigated by electrochemical impedance spectroscopy and immersion test.The results showed that the composite was corroded more seriously than the matrix Cu in the solution because of the severe corrosion of Cu in the micropores of the foamed SiC struts which could be mainly attributed to the special structure of the composite and the presence of residual stress. |
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| Keywords: | SiC/Cu co-continuous composite corrosion mass loss electrochemical impedance spectroscopy residual stress |
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