• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Electrochemical Science >Corrosion and Surface Electrochemical Behaviors of Aluminum Alloy 2A12-T3 During Long-Term Exposure at Dry-Hot Climate of Turpan (China)
【24h】

Corrosion and Surface Electrochemical Behaviors of Aluminum Alloy 2A12-T3 During Long-Term Exposure at Dry-Hot Climate of Turpan (China)

机译：吐鲁番干热气候下长期暴露于铝合金2A12-T3的腐蚀和表面电化学行为（中国）

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The long-term atmospheric corrosion behaviors of aluminum alloy 2A12-T3 specimens that are exposedin a dry-hot environment for 3 years were investigated via weight loss measurement, electrochemicalimpedance spectrum (EIS) analysis and several surface analytical techniques. The results demonstratedthat the thicknesses of corrosion products that were exposed for 1, 2, and 3 years in Turpan wererespectively 2.01 μm, 4.99 μm and 7.97 μm. The average corrosion rate of the 2A12-T3 alloy afterexposure for 1, 2 and 3 years were 0.62 g·m-2·a-1, 0.42 g·m-2·a-1 and 0.34 g·m-2·a-1. With the exposuretime extending, the corrosion rate decreased owing to the corrosion products covered on the surfaces.According to the electrochemical measurements, the oxide layer primarily influenced the anodicdissolution process. The corrosion types of the 2A12-T3 alloy are pitting and intergranular corrosion inthis environment. The dominate corrosion products were Al2O3, bayerite (Al(OH)3), boehmite (AlOOH)and AlCl3.
机译：通过重量损失测量，电化学阻抗谱（EIS）分析和几种表面分析技术，研究了在干热环境中暴露3年的2A12-T3铝合金铝合金的长期大气腐蚀行为。结果表明，吐鲁番分别暴露1、2和3年的腐蚀产物的厚度分别为2.01μm，4.99μm和7.97μm。暴露1年，2年和3年后2A12-T3合金的平均腐蚀速率分别为0.62 g·m-2·a-1、0.42 g·m-2·a-1和0.34 g·m-2·a- 1。随着暴露时间的延长，由于腐蚀产物覆盖在表面，腐蚀速率降低。根据电化学测量，氧化层主要影响阳极溶解过程。在这种环境下，2A12-T3合金的腐蚀类型为点蚀和晶间腐蚀。主要的腐蚀产物是Al2O3，方钠石（Al（OH）3），勃姆石（AlOOH）和AlCl3。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号