| Q235钢稀土催渗氮化的电化学行为研究 |
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| 引用本文： | 史红兵,何美清,黄新民.Q235钢稀土催渗氮化的电化学行为研究[J].稀有金属快报,2008,27(4):37-41. |
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| 作者姓名： | 史红兵 何美清 黄新民 |
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| 作者单位： | 1. 安徽省特种设备检测院,安徽,合肥,230051
2. 合肥工业大学,安徽,合肥,230009 |
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| 摘 要： | 通过电化学方法测试了不同电解液中Cl^-离子浓度、温度以及pH值对稀土催渗Q235钢渗层的极化曲线的影响，分析了这3种因素对稀土催渗Q235钢渗氮层腐蚀性能的影响规律。结果表明，在中性、碱性溶液中，在室温下和一定Cl^-离子浓度下渗氮层具有良好的耐蚀性能，从而说明了稀土催渗渗氮层比常规渗氮层具有更优越耐腐蚀能力的基本原因。此外，分别对Q235钢稀土催渗渗氮层和常规渗氮层的组织结构进行了金相观测，表明稀土催渗渗氮层生成厚约28μm的晶粒细小，组织致密的白亮层，从而具有良好的耐蚀性和更高的硬度。
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| 关 键 词： | Q235钢 稀土催渗 气体渗氮 电化学腐蚀 |
| 文章编号： | 1008-5939(2008)04-037-05 |
| 修稿时间： | 2008年3月17日 |
Polarization Behavior of Q235 Steel of RE Catalytic Nitriding |
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| Shi Hongbing,He Meiqing,Huang Xinmin.Polarization Behavior of Q235 Steel of RE Catalytic Nitriding[J].Rare Metals Letters,2008,27(4):37-41. |
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| Authors: | Shi Hongbing He Meiqing Huang Xinmin |
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| Affiliation: | Shi Hongbing, He Meiqing, Huang Xinmin (1. Anhui Special Equipment Inspection＆Testing Institute, Hefei 230051, China) (2. Hefei University of Technology, Hefei 230009, China) |
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| Abstract: | The polarization curves for the nitriding samples with different conditions of C1^- concentration, temperature, pH value in the solution was plotted by electrochemical test. The effects of the three factors on the corrosion resisting of nitriding layer were analyzed. The results indicate that the corrosion resistance of nitriding layer in neutral or alkaline solution with certain C1^- at room temperature is great. |
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| Keywords: | Q235 steel RE catalytic nitriding gas nitriding electrochemistry corrosion |
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