Please wait a minute...
J Chin Soc Corr Pro  2010, Vol. 30 Issue (1): 6-10    DOI:
技术报告 Current Issue | Archive | Adv Search |
EFFICIENCY AND EFFECTING FACTORS OF Mg CONTAINING Al ALLOY SACRIFICIAL ANODES
KONG Xiaodong1; DING Zhenbin2; ZHU Meiwu1
1. Chemistry and Material Department; Naval University of Engineering; Wuhan 430033
2. Military Office; 438 Shop-plant; Wuhan 430060
Download:  PDF(652KB) 
Export:  BibTeX | EndNote (RIS)      
Abstract  

Some elements such as Mg, Ti, Nb were added in Al alloy sacrificial anodes. The effects of these elements and correlated second phases on the properties of the anodes were investigated. In the studied anodes, Mg has two existing states which are solid solution and second phase separately. For the second phase, there are T-phase (Al2Mg3Zn3) and $\eta$-phase (MgZn2), which are anodic and dissolve preferentially related to the anode matrix in the chloride solution. The effects of some factors on the electrochemical properties and solubility behavior of anodes were discussed, which include the category, morphology, quantity and distribution of the second phases. The results confirmed that the homogeneous distribution, regular shape and proper quantity of second phases are beneficial to get best anode efficiency and surface dissolved state. The ideal content of Mg is about 2 % in all studied anode, at which  the anode efficiency would be close to 90 %. In this paper, the effects of trace Ti, Nb were discussed. The trace Ti, Nb is useful to get more fine grain microstructure and bigger anode efficiency, and the effect of independent Ti is better than that of Ti and Nb simultaneously. But for the anode surface dissolved state, the more fine grain microstructure was not corresponding to more uniform surface dissolution; because the trace Ti, Nb would cause the change of distribution, shape and quantity of second phases.

Key words:  sacrificial anode      aluminum alloy      second phase      efficiency      fine grain     
Received:  28 July 2008     
ZTFLH: 

TG174.2

 
Corresponding Authors:  KONG Xiaodong     E-mail:  kxd63813@hotmail.com

Cite this article: 

KONG Xiaodong; DING Zhenbin; ZHU Meiwu. EFFICIENCY AND EFFECTING FACTORS OF Mg CONTAINING Al ALLOY SACRIFICIAL ANODES. J Chin Soc Corr Pro, 2010, 30(1): 6-10.

URL: 

https://www.jcscp.org/EN/     OR     https://www.jcscp.org/EN/Y2010/V30/I1/6

[1] Gurrappa I. The surface free energy and anode efficiency of aluminum alloys [J]. Corros. Prev. Control, 1993, 40(10): 111-114
[2] Venugopal A, Angel R D, Raja V S. Effect of grain-boundary corrosion on impedance characteristics of an aluminum-zinc-indium alloy in 3.5% sodium chloride solution [J]. Corrosion, 1996, 52(2): 138-142
[3] Kong X D, Zhu M W, Ding Z B, et al. Progress in aluminum alloy sacrificial anode [J]. Chin. J. Rare Met., 2003, 27(3): 376-381
    (孔小东,朱梅五,丁振斌等. 铝合金牺牲阳极研究进展 [J]. 稀有金属,2003, 27(3): 376-381)
[4] Munoz A G, Saidman S B, Bessene J B.Corrosion of Al-Zn-In alloy in chloride media [J]. Corros. Sci.,2002, 44(10): 2171-2182
[5] Breslin C B, Friery L P, Carroll W M. Influence of impurity elements on electrochemical activity of aluminum activated by indium [J]. Corrosion, 1993, 49(11): 395-402
[6] Ding Z B, Kong X D, Zhu M W. Microstructure and property of aluminum alloy sacrificial anodes with different Mg contents [J].Mater. Prot., 2004, 37(5): 50-51
    (丁振斌, 孔小东, 朱梅五. 不同镁含量铝基牺牲阳极材料的组织与性能研究 [J]. 材料保护, 2004, 37(5): 50-51)
[7] Shibli S M A, Gireesh V S, Sony G. Surface catalysis based on ruthenium dioxide for effective activation of aluminum sacrificial anodes [J]. Corros. Sci., 2004, 46(4): 819-830
[8] Shibli S M A, Gireesh V S. Activation of aluminum alloy sacrificial anodes by selenium [J]. Corros. Sci., 2005, 47(8):2091-2097
[9] Shibli S M A, Gireesh V S. Surface activation of aluminum alloy sacrificial anodes by IrO2 [J]. Appl. Surf. Sci.,2003, 219(3-4): 203-210
[10] Song Y S, Zhang Y, Zhou L Q. Factors effecting on the hydrogen evolution on Al-anodes in strong alkaline solution[J].  J. Chin. Soc. Corros. Prot., 2006, 26(4): 237-240
     (宋玉苏,张燕,周立清.强碱性介质铝阳极析氢影响因素研究 [J].中国腐蚀与防护学报,2006, 26(4): 237-240)
[11] Aragon E, Cazenave-vergez L, Lanza E, et al.Influence of alloying elements on electrochemical behavior of ternary Al-Zn-Ga alloys for sacrificial anodes [J]. Br. Corros. J.,1997, 32(4): 263-268
[12] Li  Z Y, Qin X, Yu Y B, et al. The electrochemical behavior of Al alloys containing tin and gallium in alkaline electrolytes [J]. Acta Phys. Chem. Sin., 1999, 15(4): 381-384
     (李振亚,秦学,余远彬等.含镓和锡的铝合金在碱性溶液中的阳极行为 [J].物理化学学报,1999, 15(4): 381-384)
[13] Ren J J, Zuo Y. The study on morphology and growth mechanism of pits on anodized aluminum [J]. J. Chin. Soc.Corros. Prot., 2003, 23(4): 198-201
     (任建军,左禹.铝阳极氧化膜的蚀孔形貌与蚀孔生长机理研究 [J].中国腐蚀与防护学报,2003, 23(4): 198-201)
[14] Li Z Y, Yi L, Liu Z H, et al. The effect of halide ions on activation of Al-alloy anodes [J]. Chin. J. Appl.Chem., 2001, 18(12): 983-986
     (李振亚,易玲,刘稚蕙等.卤离子对Al-Sn-Ga合金阳极的活化作用 [J].应用化学,2001, 18(12): 983-986)
[15] Zhang Y Y, Qi G T, Liu B, et al.Microstructure and property of Al-Ga-Mg alloy [J]. J. Chin. Soc.Corros. Prot., 2005, 25(6): 336-339
     (张盈盈,齐公台,刘斌等. Al-Ga-Mg合金组织与阳极性能研究 [J]. 中国腐蚀与防护学报,2005, 25(6): 336-339)
[16] Xu H Y, Li Y B. Activation behavior of aluminum sacrificial anodes in seawater [J]. J. Chin. Soc. Corros. Prot.,2008, 28(3): 186-192
     (徐宏妍,李延斌. 铝基牺牲阳极在海水中的活化行为 [J]. 中国腐蚀与防护学报,2008, 28(3): 186-192)
[17] Liao H X, Qi G T, Yu K X. Effect of water quenching on microstructure and electrochemical performance of aluminum anode containing RE [J]. Chin. J. Trans. Mater. Heat Treat., 2004, 25(3): 54-56
     (廖海星,齐公台,喻克雄.固溶处理对含RE铝牺牲阳极组织与性能的影响 [J].材料热处理学报,2004, 25(3): 54-56)
[18] Qi H F, Liang G C, Li G L, et al. Effect of homogenizing annealing on activation properties of aluminum alloy anode [J]. Chin. J. Mater. Eng., 2005, (10): 27-30
     (祁洪飞,梁广川,李国禄等.均匀化退火对铝合金阳极活化性能的影响 [J].材料工程,2005, (10): 27-30)
[19] Qi G T, Guo Z H, Qu J E. Effect of magnesium on microstructure and performance of RE containing aluminum anode [J]. J. Chin. Soc.Corros. Prot., 2001, 21(4): 220-224
     (齐公台,郭稚弧,屈钧娥. 合金元素Mg对含RE铝阳极组织与性能的影响 [J]. 中国腐蚀与防护学报,2001, 21(4): 220-224)
[20] Hou J C, Guan S K, Ren C X, et al. Effect of small addition of strontium on microstructure and electrochemical performance of Mg-Mn sacrificial anode [J]. J. Chin. Soc. Corros.Prot., 2006, 26(3): 166-170
     (侯军才, 关绍康,任晨星等. 微量锶对镁-锰牺牲阳极显微组织和电化学性能的影响 [J]. 中国腐蚀与防护学报,2006, 26(3): 166-170)
[21] Qi G T, Qu J E, Liao H X. Study on the electrochemicalperformances of segregation phases in aluminum anodes containing RE [J]. J. Chin. Soc. Corros. Prot., 2003, 23(6): 355-358
     (齐公台,屈钧娥,廖海星. 含RE铝阳极中析出相的电化学行为 研究 [J]. 中国腐蚀与防护学报,2003, 23(6): 355-358)
[22] Gurrappa I. The effect on tin-activated aluminum-alloy anodes of the additions of bismuth [J]. Corros.Prev. Control, 1994, 41(5): 117-121
[23] Breslin C B, Carroll W M.The activation of aluminum by indium ions in chloride, bromide and iodide solutions [J]. Corros. Sci., 1993, 34(2): 327-341
[24] Qi G T, Guo C H, Wei B K, et al. Study on microstructure of Al alloy anodes with different RE contents [J].Corros. Sci. Prot. Technol., 1998, 10(1): 17-22
     (齐公台, 郭稚弧, 魏伯康等. 不同稀土含量的铝合金阳极的显微组织研究 [J].腐蚀科学与防护技术, 1998, 10(1): 17-22)
[25] Liou Y M, Chung S C, Tsai W J. Current efficiency distribution in aluminum anode metallurgical and electrochemical studies [J]. Corros.Prev. Control, 2000, 47(6): 57-62
[26] Aragon A, Cazenave-vergez L, Lanza E, et al.Electrochemical behavior of binary Al-Ga and ternary Al-Zn-Ga alloys as function of thermodynamic properties [J]. Br. Corros. J., 1997,32(2): 121-125

[1] YU Hongfei, SHAO Bo, ZHANG Yue, YANG Yange. Preparation and Properties of Zr-based Conversion Coating on 2A12 Al-alloy[J]. 中国腐蚀与防护学报, 2021, 41(1): 101-109.
[2] SUN Haijing, QIN Ming, LI Lin. Performance of Al-Zn-In-Mg-Ti Sacrificial Anode in Simulated Low Dissolved Oxygen Deep Water Environment[J]. 中国腐蚀与防护学报, 2020, 40(6): 508-516.
[3] HU Lulu, ZHAO Xuyang, LIU Pan, WU Fangfang, ZHANG Jianqing, LENG Wenhua, CAO Fahe. Effect of AC Electric Field and Thickness of Electrolyte Film on Corrosion Behavior of A6082-T6 Al Alloy[J]. 中国腐蚀与防护学报, 2020, 40(4): 342-350.
[4] CAO Jingyi, FANG Zhigang, CHEN Jinhui, CHEN Zhixiong, YIN Wenchang, YANG Yange, ZHANG Wei. Preparation and Properties of Micro-arc Oxide Film with Single Dense Layer on Surface of 5083 Aluminum Alloy[J]. 中国腐蚀与防护学报, 2020, 40(3): 251-258.
[5] WANG Tingyong, DONG Ruyi, XU Shi, WANG Hui. Electrochemical Properties of Graphene Modified Mixed Metal Oxide Anodes of Ti/IrTaSnSb-G in NaCl Solutions at Low Temperature[J]. 中国腐蚀与防护学报, 2020, 40(3): 289-294.
[6] WANG Yingjun, LIU Honglei, WANG Guojun, DONG Kaihui, SONG Yingwei, NI Dingrui. Investigation of Anodic Film on a Novel RE-containing Al-Alloy Al-Zn-Mg-Cu-Sc[J]. 中国腐蚀与防护学报, 2020, 40(2): 131-138.
[7] REN Jianping,SONG Renguo. Effect of Two-stage Ageing on Mechanical Properties and Sensitivity to Hydrogen Embrittlement of 7050 Aluminum Alloy[J]. 中国腐蚀与防护学报, 2019, 39(4): 359-366.
[8] Gaohong CHEN,Yuansen HU,Mei YU,Jianhua LIU,Guoai LI. Effect of Sulfuric Acid Anodizing on Mechanical Properties of 2E12 Al-alloy[J]. 中国腐蚀与防护学报, 2018, 38(6): 579-586.
[9] Chao SUN, Xiao YANG, Yuhua WEN. Effect of High-Al Austenitic Stainless Alloy Coatings Prepared by Magnetron Sputtering on High Temperature Oxidation Resistance of 316 Stainless Steel[J]. 中国腐蚀与防护学报, 2017, 37(6): 590-596.
[10] Weihang ZHAO, Haowei WANG, Guangyi CAI, Zehua DONG. Localized Corrosion and Corrosion Inhibitor of Al-alloy AA6061 Beneath Electrolyte Layers[J]. 中国腐蚀与防护学报, 2017, 37(4): 366-374.
[11] Herong ZHOU,Bihua HU,Wang YAO,Xinpei HONG,Shupeng SONG. Atmospheric Corrosion of Anodized Pure Al 1060, Al-alloys 2A12 and 7A04 Exposed to Polluted Atmospheric Environment at Jiangjin Region[J]. 中国腐蚀与防护学报, 2017, 37(3): 273-278.
[12] Yun DAI,Shengdan LIU,Yunlai DENG,Xinming ZHANG. Pitting Corrosion of 7020 Aluminum Alloy in 3.5%NaCl Solution[J]. 中国腐蚀与防护学报, 2017, 37(3): 279-286.
[13] Fengxuan SONG,Qizhong ZHAO,Feilong LI,Yuelu REN,Kui HUANG,Xinming ZHANG. Effect of Aging Treatment on Corrosion Rate of 7050 Al-alloy Plate[J]. 中国腐蚀与防护学报, 2017, 37(3): 287-292.
[14] Deqiang LIU,Liming KE,Weiping XU,Li XING,Yuqing MAO. Intergranular Corrosion Behavior of Friction-stir Welding Joint for 20 mm Thick Plate of 7075 Al-alloy[J]. 中国腐蚀与防护学报, 2017, 37(3): 293-299.
[15] Ziheng BAI,Yunhua HUANG,Xiaogang LI,Lang YANG,Chaofang DONG,Lidan YAN,Kui XIAO. Environmental Corrosion in Industrial-marine Atmosphere at Qingdao of 7050 Al-alloy Anodized in Boric- and Sulfuric-acid Electrolyte[J]. 中国腐蚀与防护学报, 2016, 36(6): 580-586.
No Suggested Reading articles found!