| 静载荷下LY12CZ铝合金的点蚀扩展规律 |
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| 引用本文： | 饶思贤,王元,仝基斌. 静载荷下LY12CZ铝合金的点蚀扩展规律[J]. 腐蚀科学与防护技术, 2011, 0(5): 407-410 |
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| 作者姓名： | 饶思贤 王元 仝基斌 |
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| 作者单位： | 安徽工业大学机械工程学院;合肥通用机械研究院; |
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| 基金项目： | 安徽省高校省级优秀青年人才基金项目(2010SQRL035)资助 |
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| 摘 要： | 研究静载荷对LY12CZ铝合金在3%NaCl水溶液中点蚀萌生、扩展的影响.当施加载荷时,LY12CZ合金的环状阳极极化曲线中的点蚀电位和保护电位都有一定程度的负移,表明外加载荷增大了点蚀敏感性,缩短了点蚀萌生期.在点蚀扩展阶段,点蚀的深度扩展与腐蚀时间之间符合幂函数的规律,与外加应力之间符合指数函数的关系.
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| 关 键 词： | 点蚀 力学化学效应 外加载荷 LY12CZ铝合金 |
Pitting Behavior of LY12CZ Under Applied Stress |
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| RAO Si-xian,WANG Yuan,TONG Ji-bin. Pitting Behavior of LY12CZ Under Applied Stress[J]. Corrosion Science and Protection Technology, 2011, 0(5): 407-410 |
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| Authors: | RAO Si-xian WANG Yuan TONG Ji-bin |
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| Affiliation: | RAO Si-xian~(1,2),WANG Yuan~1,TONG Ji-bin~1 1.Department of Mechanical Engineering.Anhui University of Technology,Ma'an'shan 243002,2.Hefei General Machinery Research Insitute.Hefei 230031 |
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| Abstract: | The influence of applied stress on pitting behavior of LY12CZ aluminum alloy in 3% NaCl aqueous solution was investigated.Experimental results showed that breakdown potential and protection potential of LY12CZ in 3%NaCl aqueous solution showed obvious negative shift, which indicated that applied stress enhanced the pitting susceptibility of LY12CZ and reduced pitting initiation time.It was showed during the growth period that the relationship between the pitting depth and corrosion time accorded with power ... |
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| Keywords: | pitting mechanochemical interaction applied stress LY12CZ aluminum alloy |
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