| 利用极化曲线推测中性水溶液中钛合金表面的氧化还原反应机理 |
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| 引用本文： | 姜应律,吴荫顺.利用极化曲线推测中性水溶液中钛合金表面的氧化还原反应机理[J].北京科技大学学报,2004,26(4):395-399. |
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| 作者姓名： | 姜应律 吴荫顺 |
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| 作者单位： | 北京科技大学腐蚀与防护中心,北京,100083 |
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| 摘 要： | 对钛合金TC4在中性水和3%NaCl溶液中的极化曲线进行了分析,认为钛合金在中性水溶液中阴极析氢过程中,H 1/2e=1/2H 2为反应决速步骤,阳极氧化过程决速步骤有非整比氧化物TiO1 x的参与.
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| 关 键 词： | 钛合金 氢分子离子 非整比氧化物 极化曲线 塔菲尔斜率 利用 极化曲线 水溶液 合金表面 氧化还原 反应机理 Polarization Curves NaCl Solution Water Titanium Alloy Reaction Mechanism 非整比氧化物 氧化过程 阳极 析氢 阴极 分析 中性水 钛合金 |
| 修稿时间： | 2003年4月7日 |
Electrochemical Reaction Mechanism of Titanium Alloy in Neutrol Water and 3% NaCl Solution Explored by Polarization Curves |
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| JIANG Ymglv,WU Yinshun
Materials Science and Engineering School,University of Science and Technology Beijing,Beijng ,China.Electrochemical Reaction Mechanism of Titanium Alloy in Neutrol Water and 3% NaCl Solution Explored by Polarization Curves[J].Journal of University of Science and Technology Beijing,2004,26(4):395-399. |
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| Authors: | JIANG Ymglv WU Yinshun
Materials Science and Engineering School University of Science and Technology Beijing Beijng China |
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| Institution: | JIANG Ymglv,WU Yinshun
Materials Science and Engineering School,University of Science and Technology Beijing,Beijng 100083,China |
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| Abstract: | The polarization curves of titanium alloy TC4 in neutral water and 3%NaCl solution were measured and analyzed. Their cathodic and anodic Tafel slopes were calculated to be much greater than 0.118V. The cathode process (hydrogen evolution) of titanium alloy in neutrol water was controlled by the reaction H H e=H2 which explained well the cathode Tafel slope was about 0.23 V. The nonstoichiometric oxide TiO1 x, (0.5< x <1) as an intermediate product took part in an electrochemical reaction was the controlled step in anodic process. |
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| Keywords: | titanium alloy hydrogen molecule-ion nonstoichiometric oxide polarization curve Tafel slope |
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