| 静载荷对30CrMnSiA在中性及酸性溶液中腐蚀速度的影响 |
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| 引用本文： | 王景茹,朱立群,张峥.静载荷对30CrMnSiA在中性及酸性溶液中腐蚀速度的影响[J].腐蚀科学与防护技术,2008,20(4):253-256. |
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| 作者姓名： | 王景茹 朱立群 张峥 |
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| 作者单位： | 1. 北京科技大学,材料科学与工程学院,北京,100083
2. 北京航空航天大学,材料科学与工程学院,北京,100083 |
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| 基金项目： | 国家重点基础研究发展规划 |
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| 摘 要： | 用电化学测量技术通过加载时30CrMnSiA在中性溶液中自腐蚀电位和阳极极化曲线负移，及在酸性溶液中电化学阻抗谱的不同变化，研究了静载荷对腐蚀速度的影响.并提出外力是否影响腐蚀速度，应视腐蚀的控制步骤而定的观点.结果表明，当腐蚀体系阴阳极都为活化控制时，外力增加腐蚀速度；当腐蚀体系控制步骤为扩散控制时，外力不影响腐蚀速度；对吸氧腐蚀而言，在外力较大时，还需考虑外力是否导致阴极控制过程的转变.
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| 关 键 词： | 腐蚀 力学化学 电化学阻抗谱 控制步骤 |
| 收稿时间： | 2006-12-06 |
| 修稿时间： | 2007-04-20 |
INFLUENCE OF STATIC LOAD ON CORROSION RATE OF 30CrMnSiA STEEL IN NEUTRAL AND ACIDIC SOLUTIONS |
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| WANG Jing-ru,ZHU Li-qun,ZHANG Zheng.INFLUENCE OF STATIC LOAD ON CORROSION RATE OF 30CrMnSiA STEEL IN NEUTRAL AND ACIDIC SOLUTIONS[J].Corrosion Science and Protection Technology,2008,20(4):253-256. |
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| Authors: | WANG Jing-ru ZHU Li-qun ZHANG Zheng |
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| Affiliation: | WANG Jing-ru1,ZHU Li-qun2,ZHANG Zheng2 1.School of Material Science , Engineering,University of Science , Technology Beijing,Beijing 100083,2.School of Material Science , Engineering,Beijing University of Aeronautics , Astronautics |
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| Abstract: | The influence of static load on corrosion rate of 30CrMnSiA steel was investigated through variations of free corrosion potential,anodic polarization curve and electrochemical impedance spectroscopy as the static load increased.The experimental results indicated that the influence of the static load on corrosion rate depended on the control steps of corrosion process.When both of the cathodic and anodic processes are activation control,the corrosion rate increased with the applied stress.When the control st... |
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| Keywords: | corrosion mechanochemical behavior electrochemical impedance spectroscopy control procedures |
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