| 173 | 8 | 38 |
| 下载次数 | 被引频次 | 阅读次数 |
利用正交试验的配比方法炼制了不同Zn、In、Mg、Ti含量Al-Zn-In-Mg-Ti牺牲阳极9组,采用恒电流和极化曲线方法评价了牺牲阳极的电化学性能。结果表明:电流效率随着钛含量的增加呈上升趋势,随着铟含量的增加而呈下降趋势,随着锌、镁含量的增加先下降后升高。阳极为均匀溶解,未出现钝化现象,溶解过程表现出2种放电过程。最佳阳极配比(wt%)为:Zn 6.0,In 0.020,Mg 1.5,Ti 0.080,余量为Al。
Abstract：9 types of Al-Zn-In-Mg-Ti sacrificial anodes with different amounts of Zn,In,Mg,and Ti were designed by the orthogonal method and casted.The electrochemical performance of Al-Zn-In-Mg-Ti sacrificial anodes was tested with constant current method and polarization curves.The results showed that the current efficiency of the anodes increased with titanium content increasing,decreased with the amount of indium increasing,and increased first,then decreased with zinc,magnesium content increasing.The anodes dissolved uniformly without passivity,and there were two different discharging processes during the dissolution.The best recipe of the anode(wt%) was Zn 6.0,In 0.020,Mg 1.5,Ti 0.080,Al Balance.
[1]T J Lennox Jr,M H Peterson,R E Groover.A study of electro-chemical efficiencies of Aluminum galvanic anodes in sea water[J].Materials Protection,1968,7(2):33-37.
[2]R L Horst Jr.Alloy anodes in sea water service[J].MaterialsProtection,1968,7(3):39-41.
[3]I Gurrappa,J A Karnik.Development of aluminum alloy anodesfor cathodic protection of ships[J].Corrosion Prevention&Con-trol,1996,43(6):77-81.
[4]I Gurrappa.Aluminum alloys for cathodic protection[J].Corro-sion Prevention&Control,1997,44(6):69-80.
[5]胡士信.阴极保护手册[M].北京:化学工业出版社,1999:69-70.
[6]Ma Jingling,Wen Jiuba,Li Gengxin,et al.The corrosion behav-ior of Al-Zn-In-Mg-Ti alloy in NaCl solution[J].Corrosion Sci-ence,2010,52:534-539.
[7]Ma Jingling,Wen Jiuba.The effects of lanthanum on microstruc-ture and electrochemical properties of Al-Zn-In based sacrificial an-ode alloys[J].Corrosion Science,2009,51:2115-2119.
[8]J T Reding,J J Newport.The influence of alloying elements on A-luminum anodes in sea water[J].Materials Protection,1966,5(11):15-18.
[9]T Sakano,K Toda,M Hanada.Test on the effect of indium forhigh performance Aluminum anodes[J].Materials Protection,1966,5(11):45-50.
[10]翟秀静,符岩,郎晓珍,等.添加元素对铝基牺牲阳极的影响[J].有色金属,2006,58(1):42-45.
[11]邢少华,姚萍,闫永贵,等.合金元素对Al-Zn-In系牺牲阳极溶解行为的影响[J].腐蚀与防护,2008,29(12):717-719.
[12]张信义,王元玺,火时中.Al-Zn-Mg-In-Ga-Ca合金牺牲阳极电化学性能的研究[J].腐蚀科学与防护技术,1995,7(1):53-57.
[13]文九巴,王国伟,马景灵,等.Ga对Al-Zn-Sn系阳极合金电化学性能的研究[J].热材料处理学报,2010,31(8):30-39.
[14]李凯,马力,闫永贵,等.低驱动电位牺牲阳极的研究[J].材料保护,2010,43(4):95-97.
[15]张三艳.牺牲阳极化学成分对电化学性能的影响[J].中国造船,2007,48(11):352-356.
[16]郭公玉,张经磊,侯保荣,等.合金元素对铝基牺牲阳极性能影响的研究[J].海洋与湖沼,1995,26(4):397-401.
[17]Reboul M C,Gimenez P H,Rameau J J.A proposed activationmechanism for Al anodes[J].Corrosion,1984,40:366-371.
基本信息:
DOI：10.16441/j.cnki.hdxb.2012.09.011
中图分类号:TG174.41
引用信息:
[1]翁松干,杜敏,黄志强,等.合金成分对Al-Zn-In-Mg-Ti牺牲阳极性能的影响[J].中国海洋大学学报(自然科学版),2012,42(09):64-68.DOI:10.16441/j.cnki.hdxb.2012.09.011.
基金信息:
国家科技重大专项项目(2008ZX05056-03-05)资助
2012-09-15
2012-09-15