| 氢和应力对304不锈钢在酸性氯离子溶液中活化溶解的影响 |
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| 引用本文： | 黄毓晖,轩福贞,涂善东.氢和应力对304不锈钢在酸性氯离子溶液中活化溶解的影响[J].压力容器,2009,26(12):5-8. |
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| 作者姓名： | 黄毓晖 轩福贞 涂善东 |
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| 作者单位： | 华东理工大学,机械与动力工程学院,上海,200237 |
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| 摘 要： | 采用衡载荷和电化学试验研究了304奥氏体不锈钢在60℃时，不同加载应力下的阳极溶解电流密度变化。试验结果表明，随着加载应力的增大，304不锈钢在腐蚀溶液中的阳极溶解活性区间向负方向移动，应力的增大加速了材料的腐蚀，塑性变形使材料阳极溶解电流密度显著增大。根据热力学和电化学理论分析了氢和加载应力对阳极溶解电流密度的影响，所得计算结果与试验结果较好吻合。
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| 关 键 词： | 奥氏体不锈钢 氯离子 衡载荷 极化曲线 阳极溶解速率 |
Effect of Hydrogen and Stress on Active Dissolution of 304 Stainless Steel in the Environment of Acid NaCl Solution |
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| HUANG Yu-hui,XUAN Fu-zhen,TU Shan-tung.Effect of Hydrogen and Stress on Active Dissolution of 304 Stainless Steel in the Environment of Acid NaCl Solution[J].Pressure Vessel Technology,2009,26(12):5-8. |
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| Authors: | HUANG Yu-hui XUAN Fu-zhen TU Shan-tung |
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| Affiliation: | HUANG Yu - hui, XUAN Fu - zhen, TU Shan - tung ( School of Mechanical and Power Engineering, East China University of Science and Technology, Shanghai 200237, China) |
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| Abstract: | Constant loading tests as well as electrochemical tests were adopted to study the effect of applied stress on anodic dissolution currency in the environment of acid NaCl solution at the temperature of 60 ℃. Test result showed that with increasing of applied stress, anodic active dissolution range of 304 stainless steel moved to negative direction, corrosion rate increased with increasing of applied stress, especially plastic stress. Based on thermodynamics and electrochemical theories, analyzed the synergistic effect of stress field and dissolved hydrogen on active dissolution, the calculated results can agree well with testing results. |
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| Keywords: | austenitic stainless steel chloride ion constant loading polarization curve anodic dissolution rate |
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