为提高镁稀土合金Mg-Gd-Y-Zr的耐高温和抗腐蚀能力,采用溶胶-凝胶法在该合金板表面制备了氧化铈掺杂氧化钇稳定氧化锆(CYSZ)的耐蚀涂层.X射线衍射和红外光谱等分析结果显示该涂层主要由CeO2-Y2O3-ZrO2等氧化物组成.析氢法和交流阻抗等电化学测试表明CYSZ涂层在5%NaCl溶液中比铬酸盐转化膜耐蚀性能更好,溶胶-凝胶膜贮藏和缓慢释放缓蚀剂显著增强了耐蚀涂层对基体镁合金板的耐盐水腐蚀能力.高温氧化动力学行为表明,在623 K时该膜对基体镁合金能够进行长时间保护.
参考文献
| [1] | 肖阳,张新明,陈健美,蒋浩.Mg-9Gd-4Y-0.6Zr合金挤压T5态的高温组织与力学性能[J].中国有色金属学报,2006(04):709-714. |
| [2] | 李海滨,梁开明,梅乐夫,顾守仁.溶胶-凝胶法制备的ZrO2涂层对低碳钢腐蚀的防护[J].腐蚀科学与防护技术,2002(02):92-94. |
| [3] | 王禹慧,赵景茂,左禹.铝合金耐蚀膜的制备及其性能研究[J].腐蚀与防护,2005(10):432-435. |
| [4] | Helene Ardelean;Isabelle Frateur;Philippe Marcus .Corrosion protection of magnesium alloys by cerium, zirconium and niobium-based conversion coatings[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2008(7):1907-1918. |
| [5] | Maggio R D;Fedrizzi L;Rossi S et al.Dry and wet corrosion behaviour of AISI 304 stainless steel coated by sol-gel ZrO2-CeO2 films[J].Thin Solid Films,1996,286:127-135. |
| [6] | Cales B;Baumard J F .Mixed Conduction and Defect Structure of ZrO2-CeO2-Y2O3 Solid Solutions[J].Journal of the Electrochemical Society,1984,131(10):2407-2413. |
| [7] | Heming Wang;Robert Akid .Encapsulated cerium nitrate inhibitors to provide high-performance anti-corrosion sol-gel coatings on mild steel[J].Corrosion Science: The Journal on Environmental Degradation of Materials and its Control,2008(4):1142-1148. |
| [8] | YI Jian-long,ZHANG Xin-ming,CHEN Ming-an,GU Rui,DENG Yun-lai.Corrosion resistance of cerium conversion film electrodeposited on Mg-Gd-Y-Zr magnesium alloy[J].中南大学学报（英文版）,2009(01):38-42. |
| [9] | 朱明,李美栓,李亚利,周延春.溶胶-凝胶高温氧化防护涂层[J].腐蚀科学与防护技术,2004(01):33-37. |
| [10] | Yi J L;Zhang X M;Chen M A .Effect of Na2CO3 on corrosion resistance of cerium-based conversion coatings on Mg-Gd-Y-Zr magnesium alloys[J].Scripta Materialia,2008,59:955-958. |
| [11] | Lee CH.;Choi GM. .Electrical conductivity of CeO2-doped YSZ[J].Solid state ionics,2000(1/4):653-661. |
| [12] | Li Q;Zhong XK;Hu JY;Kang W .Preparation and corrosion resistance studies of zirconia coating on fluorinated AZ91D magnesium alloy[J].Progress in Organic Coatings: An International Review Journal,2008(2):222-227. |
| [13] | M.L. Dos Santos;R.C. Lima;C.S. Riccardi;R.L. Tranquilin;P.R. Bueno;J.A. Varela;E. Longo .Preparation and characterization of ceria nanospheres by microwave-hydrothermal method[J].Materials Letters,2008(30):4509-4511. |
| [14] | 曾荣昌;韩恩厚.材料的腐蚀与防护(第1版)[M].北京:化学工业出版社,2006:152. |
| [15] | N. V. Ravi Kumar;J. J. Blandin;M. Suery .Effect of alloying elements on the ignition resistance of magnesium alloys[J].Scripta materialia,2003(3):225-230. |
| [16] | Zheludkevich ML;Serra R;Montemor MF;Salvado IMM;Ferreira MGS .Corrosion protective properties of nanostructured sol-gel hybrid coatings to AA2024-T3[J].Surface & Coatings Technology,2006(9):3084-3094. |
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