齐公台,邱于兵,蔡启舟,冉伟

• 1:华中科技大学化学与化工学院

摘要(Abstract)：

对Al-2Zn-0.03In阳极分别进行"510℃×10h+空气冷却"和"510℃×10h+水冷却"处理,采用电子探针(EPMA)和能谱分析,考察了主要析出相形貌和成分的变化,测定了铝阳极的基本电化学性能。结果表明:固溶处理使铝阳极晶内和晶界析出物中的Zn含量降低而Fe、Si被保留,Al-Zn金属间化合物数量减少,晶界析出物发生断裂、球化现象。基体中Zn的增加和晶界Al-Zn化合物数量减少削弱了铝阳极析氢腐蚀和晶间腐蚀,使铝合金阳极电流效率提高。

关键词(KeyWords)： 铝合金;牺牲阳极;固溶处理;显微组织;电化学性能

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(50671041)

作者(Author): 齐公台,邱于兵,蔡启舟,冉伟

参考文献(References)：

• [1]Maclennan D F.Corrosion products films formula on aluminum in high temperature water[J].Corrosion,1961,17(4):105.
• [2]Grandstaff C M,Craig L.Offshore testing of aluminum anodes[J].Materials Performance,1971,10(5):29.
• [3]Venugopal A,Angal R D,Raja V S.Effect of grain boundary corrosion on impedance characteristics of an aluminum-zinc-indium alloy in 3.5%sodiumchloride solution[J].Corrosion,1996,52(2):138.
• [4]Salinas D R,Garcia S G,Bessone J B.Influence of alloying elements and microstructure on aluminum sacrificial anode performance:Case of Al-Zn[J].Journal of Applied Electrochemistry,1999,29(9):1063.
• [5]Reding J T,Newport J J.The influence of alloying elements on aluminum anode in sea water[J].Materials Protection,1966,5(12):15.
• [6]Reboul M C,Gimenez Ph,Ramaeu J J.Proposed activation mechanism for Al anodes[J].Corrosion,1984,40(7):366.
• [7]Pyun S I,Lee W J.The effect of prior Cl-ion incorporation into native oxide film on pure aluminium in neutral chloride solution on pit initiation[J].Corrosion Science,2001,43(2):353.
• [8]Ponchel B M,Hosrst R L.Performance of Al-Zn-Sn alloy anodes in sea water service[J].Materials Protection,1968,7(3):38.
• [9]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.ZHANG Xin-yi,WANG Yuan-xi,HUO Shi-zhong.Study on electrochcmical properties of AI-Zn-Mg-In-Ga-Ca alloy sacrificial anode[J].Corrosion Scienceand Protection Technology,1995,7(1):53.
• [10]Breslin C B,Carroll W M.Activation of aluminum by activator elements[J].Corrosion Science,1993,35(1):197-203.
• [11]Venugopal A,Raja V S.AC impedance study on the activation mechanism of aluminium by indium and zinc in 3.5%NaCl medium[J].Corrosion Science,1997,39(12):2053.
• [12]Shayeb H A,Abd El F M,Wahab El.Electrochemical behaviour of Al,Al-Sn,Al-Zn and Al-Zn-Sn alloys in chloride solutions containing indium ions[J].Journal of Applied Electrochemistry,1999,29:473.
• [13]Ashok S R,Venkataramani A,Parthiban G T.Performance of aluminium anodes under heat treatment[J].Corrosion Prevention and Control,2002,49(2):60.
• [14]Mondolfo L F.Effect of interfacial energies on heterogeneous nucleation[J].Materials Science and Technology,1989,5(2):118.
• [15]Sakano T,Toda K,Hanada M.Tests on the effects of indium for high performance aluminum anodes[J].Materials Protection,1967,6(5):45.
• [16]Reboul M C,Delatte M C,Pieraerts J M.A semi-continuously cast aluminum anode[J].Anti-Corrosion Methods and Materials,1982,29(10):7-9.
• [17]Reboul M C,Delatte M C.Activation mechanism for sacrificial Al-Zn-Hg anodes[J].Materials Performance,1980,19(3):35.
• [18]刘斌,齐公台,冉伟,等.模拟偏析相Al2Zn在3%NaCl溶液中的电化学行为[J].中国腐蚀与防护学报,2007,27(2):93.LIU Bin,QI Gong-tai,RAN Wei,et al.Electrochemical behavior of the simulated Al2Zn segregation in 3%NaCl solution[J].Journal of Chinese Society forCorrosion and Protection,2007,27(2):93.
• [19]Munoz A G,Saidman S B,Bessone J B.Corrosion of an Al-Zn-In alloy in chloride media[J].Corrosion Science,2002,44(7):2171.

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