| 铁铬合金摩擦破损微电偶的形成及作用 |
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| 引用本文： | 孙冬柏,李涛.铁铬合金摩擦破损微电偶的形成及作用[J].电化学,1998,4(3):307-312. |
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| 作者姓名： | 孙冬柏 李涛 |
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| 作者单位： | ＵＮＤＰ／国家科委－北京腐蚀与防护中心冶金部腐蚀—磨蚀与表面技术开放研究实验室北京科技大学 |
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| 基金项目： | 金属腐蚀与防护国家重点开放实验室资助 |
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| 摘 要： | 本文分析，研究了１Ｃｒ１８合金材料在０．２ｍｏｌ．Ｌ＾１Ｈ２ＳＯ４溶液中的摩擦腐２蚀过程中产生微电偶腐蚀的可能性及原因，并研究了微电偶对摩擦电化学行为的影响，研究结果表明：由于摩擦过程造成材料表面的电化学不均一性是产生微电偶作用的真正原因。未摩擦表面与摩擦表面的面积比显著地影响了摩擦电偶电位和摩擦电偶电流的大小。
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| 关 键 词： | 钝性 金属材料 电偶作用 摩擦腐蚀 铁铬合金 |
Formation and Effect of Tribo Cell for Fe Cr alloy |
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| Abstract: | The micro galvanic corrosion of 1Cr18 alloy and its effects on the triboelectrochemical behavior were investigated and analyzed in this article. It is shown that the micro galvanic corroson is due to the electrochemical inhomogenity on the surface of the alloy during the friction process. Like galvanic corrosion,the micro galvanic corrosion behaviors are greatly affected by the area ratio of unrubbed to rubbed surface.The load effects on electrochemical behavior of 1Cr18 alloy are also attributed to existence of electrochemical inhomogenity on the surface of materal. |
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| Keywords: | Passivity Fe Cr alloy Gavalnic effect |
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