复合电位电偶腐蚀控制技术
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摘要
对复合电位电偶腐蚀控制技术的原理及技术特点进行介绍,阐述了该项发明的用途,并通过消除和减缓电偶腐蚀的两个应用实例,说明了其应用方法和应用效果。该技术是一项针对异种金属之间电偶腐蚀的防腐蚀新技术,其基本原理是通过在电偶阴极上连接复合阳极使其极化形成复合电位,降低电偶阴极的电位,从而减小或消除其与电偶阳极的电位差,来实现对电偶腐蚀的控制,解决了其他防腐蚀技术难以解决的因耐蚀金属材料应用引起的电偶腐蚀问题。该技术有别于阴极保护思路,针对电位差这一电偶腐蚀源进行腐蚀控制,丰富了电化学保护方法内容。实际应用结果表明,该技术不仅为异种金属之间电偶腐蚀控制提供了解决措施,也为材料电化学匹配提供了一种等电位平衡的设计思路。
This paper introduced the principle and technical characteristics of galvanic corrosion control technology of compound potential, expounded the two actual cases of eliminating and retarding galvanic corrosion control, and illuminated the uses of this invention. The compound potential galvanic corrosion control technology is a new anticorrosion technology aimed at galvanic corrosion between dissimilar metals. The technology lets cathode form compound potential by connecting compound anode and imposing anodic current on cathode, to be polarized for lowering its potential, to control galvanic corrosion, through the way that reduces or eliminates the potential difference between metals, so as to solve the problem of galvanic corrosion due to corrosion-resistant metal application that cannot or is difficult to be solved by conventional ways. This technology is different from cathode protection. Its corrosion control is carried out according to the galvanic corrosion source of potential difference. The content of electrochemical protection method is enriched. Practical application results show that the technology not only is the way of controlling galvanic corrosion between dissimilar metals, but also provides a design method of equal potential balance for electrochemical matching of metal materials.
This paper introduced the principle and technical characteristics of galvanic corrosion control technology of compound potential, expounded the two actual cases of eliminating and retarding galvanic corrosion control, and illuminated the uses of this invention. The compound potential galvanic corrosion control technology is a new anticorrosion technology aimed at galvanic corrosion between dissimilar metals. The technology lets cathode form compound potential by connecting compound anode and imposing anodic current on cathode, to be polarized for lowering its potential, to control galvanic corrosion, through the way that reduces or eliminates the potential difference between metals, so as to solve the problem of galvanic corrosion due to corrosion-resistant metal application that cannot or is difficult to be solved by conventional ways. This technology is different from cathode protection. Its corrosion control is carried out according to the galvanic corrosion source of potential difference. The content of electrochemical protection method is enriched. Practical application results show that the technology not only is the way of controlling galvanic corrosion between dissimilar metals, but also provides a design method of equal potential balance for electrochemical matching of metal materials.
引文
[1]杨世伟,席慧智,谢辅洲,等.舰船材料的电偶腐蚀研究[J].哈尔滨工程大学学报,2000(6):34-38.
[2]孙明先.舰船阴极保护技术的现状与发展[J].舰船科学技术,2001(2):44-46.
[3]徐金文,高新华,陈本永.现代舰船腐蚀防护技术发展方向[J].舰船工程研究,2008(4):2-5.
[4]刘建华,吴昊,李松梅,等.高强合金与钛合金的电偶腐蚀行为[J].北京航空航天大学学报,2003,29(2):124-127.
[5]彭乔,殷正安,樊雷.钛/碳钢电偶腐蚀和阴极保护研究[J].化工腐蚀与防护,1994(3):7-9.
[6]郭庆锟,杜敏.钛/碳钢在海水中电偶腐蚀的研究[J].海洋湖沼通报,2005(4):23-29.
[7]王曰义,姚萍,刘玉梅.全钛冷凝器主循环水系统的电偶腐蚀及其防护[J].材料开发与应用,1996,11(5):30-34.
[8]付治深.钢质海船的腐蚀与阴极保护[J].船海工程,2004(4):18-19.
[9]杨朝晖,刘斌,李向阳,等.牺牲阳极在舰船阴极保护中的应用和进展[J].中国材料进展,2014(10):618-619.
[10]黄桂桥.金属在海水中的腐蚀电位研究[J].腐蚀与防护,2000(1):8-11.
[11]王建民,陈学群,李国民,等.低合金船体钢点腐蚀敏感性的研究[J].海军工程大学学报,2003(5):91-96.
[12]常娥,闫永贵,李庆芬,等.阴极极化对921A钢海水中氢脆敏感性的影响[J].中国腐蚀与防护学报,2010(1):83-87
[13]文丽娟,高志明,刘洋洋,等.阴极保护电位对Q235钢氢脆敏感性和力学性能的影响[J].中国腐蚀与防护学报,2013(4):271-276.
[14]陈祥曦,张海兵,赵程,等.阴极保护电位对E550钢氢脆敏感性的影响[J].腐蚀科学与防护技术,2016(4):144-148.
[15]马青华.复合电位电偶腐蚀控制技术:中国,2008 10026799.6[P].2008-06-04.
[2]孙明先.舰船阴极保护技术的现状与发展[J].舰船科学技术,2001(2):44-46.
[3]徐金文,高新华,陈本永.现代舰船腐蚀防护技术发展方向[J].舰船工程研究,2008(4):2-5.
[4]刘建华,吴昊,李松梅,等.高强合金与钛合金的电偶腐蚀行为[J].北京航空航天大学学报,2003,29(2):124-127.
[5]彭乔,殷正安,樊雷.钛/碳钢电偶腐蚀和阴极保护研究[J].化工腐蚀与防护,1994(3):7-9.
[6]郭庆锟,杜敏.钛/碳钢在海水中电偶腐蚀的研究[J].海洋湖沼通报,2005(4):23-29.
[7]王曰义,姚萍,刘玉梅.全钛冷凝器主循环水系统的电偶腐蚀及其防护[J].材料开发与应用,1996,11(5):30-34.
[8]付治深.钢质海船的腐蚀与阴极保护[J].船海工程,2004(4):18-19.
[9]杨朝晖,刘斌,李向阳,等.牺牲阳极在舰船阴极保护中的应用和进展[J].中国材料进展,2014(10):618-619.
[10]黄桂桥.金属在海水中的腐蚀电位研究[J].腐蚀与防护,2000(1):8-11.
[11]王建民,陈学群,李国民,等.低合金船体钢点腐蚀敏感性的研究[J].海军工程大学学报,2003(5):91-96.
[12]常娥,闫永贵,李庆芬,等.阴极极化对921A钢海水中氢脆敏感性的影响[J].中国腐蚀与防护学报,2010(1):83-87
[13]文丽娟,高志明,刘洋洋,等.阴极保护电位对Q235钢氢脆敏感性和力学性能的影响[J].中国腐蚀与防护学报,2013(4):271-276.
[14]陈祥曦,张海兵,赵程,等.阴极保护电位对E550钢氢脆敏感性的影响[J].腐蚀科学与防护技术,2016(4):144-148.
[15]马青华.复合电位电偶腐蚀控制技术:中国,2008 10026799.6[P].2008-06-04.