• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>Second Osaka International Conference on Platform Science and Technology for Advanced Magnesium Alloys 2003 Pt.2, Jan 26-30, 2003, Osaka, Japan >Electrochemical Corrosion Studies of Thixomolded AZ91D Alloy in Sodium Chloride Solution
【24h】

Electrochemical Corrosion Studies of Thixomolded AZ91D Alloy in Sodium Chloride Solution

机译：触变合金AZ91D合金在氯化钠溶液中的电化学腐蚀研究

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The influence of chloride ion concentration on the corrosion behavior of thixomolded AZ91D alloy under anodic polarization and natural immersion into sodium chloride solution was investigated. A small passivation following its breakdown at critical potential was observed on anodic polarization curves. The critical potential showed a linear relationship with square root of scanning rate and logarithm of sodium chloride concentration. In natural immersion condition, electrochemical noise at corrosion potential and an inductive loop on the impedance diagram appeared after certain period. Those behaviors indicated the start of depassivation which would bring about filiform corrosion and pitting in later stage. The critical concentration of depassivation was estimated to around 10~(-2) kmol/m~3. If it was lower than this value, the corrosion rate showed a constant value around 7 mg/m~2/h (0.03 mm/y).
机译：研究了氯离子浓度对阳极极化和自然浸入氯化钠溶液中触变模压AZ91D合金腐蚀行为的影响。在阳极极化曲线上观察到在临界电位击穿后发生的少量钝化。临界电位与扫描速度的平方根和氯化钠浓度的对数呈线性关系。在自然浸没条件下，一定时间后会出现腐蚀电位下的电化学噪声和阻抗图上的感应环路。这些行为表明钝化的开始，这将在以后阶段引起丝状腐蚀和点蚀。钝化的临界浓度估计为10〜（-2）kmol / m〜3。如果低于该值，则腐蚀速率显示出恒定值，约为7 mg / m〜2 / h（0.03 mm / y）。

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