| 铝合金在NaCl溶液中的电化学腐蚀行为 |
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| 引用本文： | 汪俊英,孔小东,刘信. 铝合金在NaCl溶液中的电化学腐蚀行为[J]. 装备环境工程, 2010, 7(3): 38-41 |
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| 作者姓名： | 汪俊英 孔小东 刘信 |
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| 作者单位： | 海军工程大学理学院化学与材料系,武汉,430033 |
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| 摘 要： | 采用极化曲线法和交流阻抗法,分析了ZL102和LF6铝合金在不同pH的3%NaCl溶液中的腐蚀特性,并用金相显微镜观察了铝合金的微观组织。结果表明,2种铝合金的自腐蚀电位都随着pH的升高变得愈负;除pH=9.5的情形之外,ZL102铝合金的腐蚀速率均小于LF6铝合金;LF6铝合金结构的不均匀性与其加入的合金化元素是导致其耐蚀性能较ZL102铝合金差的主要原因。
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| 关 键 词： | 铝合金 耐腐蚀性能 极化曲线 阻抗谱 微观组织 |
Electrochemistry Corrosion Behaviors of Al Alloys in NaCl Solution |
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| WANG Jun-ying,KONG Xiao-dong,LIU Xin. Electrochemistry Corrosion Behaviors of Al Alloys in NaCl Solution[J]. Equipment Environmental Engineering, 2010, 7(3): 38-41 |
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| Authors: | WANG Jun-ying KONG Xiao-dong LIU Xin |
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| Affiliation: | (Navy University of Engineering,Wuhan 430033,China) |
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| Abstract: | The electrochemical features of the corrosion of two aluminum alloys ZL102 and LF6 in 3% NaCl solution were studied by potentiodynamic scanning（PDS）and electrochemical impendence spectroscopy（EIS）.The microstructure of the alloys were observed by metallurgical microscope.The results showed that self-corrosion potential of the two alloys decrease as the value of pH increases;the corrosion rate of the alloy ZL102 is much smaller than the alloy LF6 on the whole;the corrosion resistance is different between the alloy ZL102 and LF6 because of microstructure and alloy elements. |
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| Keywords: | aluminum alloy corrosion resistance potentiodynamic scanning（PDS） electrochemical impendence spectroscopy（EIS） microstructure |
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