预制膜厚度对铝硅合金CPED陶瓷层组织及隔热性能的影响
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摘要
为研究预制膜厚度对CPED陶瓷层生长过程、微观形貌、元素分布、物相及隔热性能的影响,通过改变预制膜厚度在铝硅合金表面制备CPED陶瓷层,采用环境扫描电子显微镜和X射线衍射仪分别对陶瓷层进行了表面、截面形貌以及物相组成分析;通过自制隔热测试装置对CPED陶瓷层进行了隔热性能测试.结果表明:随着预制膜厚度增加,制得的陶瓷层的放电通道的数量及分布均匀程度先增加后减小,预制膜为9μm时制得的陶瓷层放电通道多且均匀,表面的岛状沉积物较少;预制膜为3μm和12μm的陶瓷层在沉积10min时出现固溶体Zr_3Y_4O_(12),预制膜为9μm在30min时出现固溶体Zr_3Y_4O_(12);随着预制膜厚度增加,陶瓷层的隔热性能呈先上升后下降的趋势,预制膜为9μm的陶瓷层隔热性能最优.
In order to study the effect of prefabricated film thickness on the growth process,microstructure,element distribution,phase and thermal insulation property of CPED ceramic layer.The CPED ceramic layer was prepared on the surface of the Al-Si alloy by changing the thickness of the preformed film.The surface and cross-section of the ceramic layer were analyzed by environmental scanning electron microscopy(SEM),and the phase composition analysis was performed by X-ray diffractometer.The thermal insulation performance test of CPED ceramic layer was carried out by self-made insulation test device.The results showed that with the thickness of the preformed coating increased,the number of discharge channel and distribution uniformity degree of made ceramic coating firstly increased and then decreased,there were more quantity and uniform discharge channels and less island deposits on the surface when the thickness of the preformed coating was 9μm.The solid solution Zr_3Y_4O_(12) appeared when the thickness of preformed coating was 9μm at 10 min and the thickness of preformed coating was12μm at 30 min.With the thickness of the preformed coating increased,the thermal insulation performance of the ceramic coating increased firstly and then decreased,and the thermal insulation performance of the ceramic coating was the best when the thickness of the preformed coating was 9μm.
In order to study the effect of prefabricated film thickness on the growth process,microstructure,element distribution,phase and thermal insulation property of CPED ceramic layer.The CPED ceramic layer was prepared on the surface of the Al-Si alloy by changing the thickness of the preformed film.The surface and cross-section of the ceramic layer were analyzed by environmental scanning electron microscopy(SEM),and the phase composition analysis was performed by X-ray diffractometer.The thermal insulation performance test of CPED ceramic layer was carried out by self-made insulation test device.The results showed that with the thickness of the preformed coating increased,the number of discharge channel and distribution uniformity degree of made ceramic coating firstly increased and then decreased,there were more quantity and uniform discharge channels and less island deposits on the surface when the thickness of the preformed coating was 9μm.The solid solution Zr_3Y_4O_(12) appeared when the thickness of preformed coating was 9μm at 10 min and the thickness of preformed coating was12μm at 30 min.With the thickness of the preformed coating increased,the thermal insulation performance of the ceramic coating increased firstly and then decreased,and the thermal insulation performance of the ceramic coating was the best when the thickness of the preformed coating was 9μm.
引文
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[2]YEROKHIN A L,NIE X,LEYLAND A,et al.Plasma Electrolysis for Surface Engineering[J].Surface and Coatings Technology,1999,122(2/3):73.
[3]何业东,杨晓战,王德仁.一种制备氧化物陶瓷涂层的阴极微弧电沉积方法:1327091A[P].2001-12-19.HE Yedong,YANG Xiaozhan,WANG Deren.A Method for Preparing Oxide Ceramic Coating by Cathodic Microarc Electrodeposition:1327091A[P].2001-12-19.(in Chinese)
[4]杨晓战,何业东,王德仁,等.阴极微弧氧化电沉积钇稳定氧化锆涂层[J].科学通报,2002,47(7):525.YANG Xiaozhan,HE Yedong,WANG Deren,et al.Electrodeposition of Yttrium-stabilized Zirconia Coating by Cathodic Microarc Oxidation[J].Chinese Science Bulletin,2002,47(7):525.(in Chinese)
[5]李夕金,程国安,薛文斌,等.TiAl合金表面阴极微弧制备的Al2O3膜结构与性能[J].粉末冶金材料科学与工程,2009,14(2):115.LI Xijin,CHENG Guoan,XUE Wenbin,et al.Structure and Properties of Al2O3 Coating Fabricated by Cathodic Microarc Deposition on TiAl Alloy[J].Materials Science and Engineering of Powder Metallurgy,2009,14(2):115.(in Chinese)
[6]马超,杨建明,许政择,等.电解液成分对阴极等离子体电解沉积镍的影响[C]//全国特种加工学术会议.第15届全国特种加工学术会议论文集(下).南京:电加工与模具,2013:23.MA Chao,YANG Jianming,XU Zhengze,et al.Effect of Electrolyte Composition on Preparation of Ni by Cathodic Plasma Electrolytic Deposition[C]//National Academic Conference on Special Processing.Proceedings of the 15th National Academic Conference on Special Processing(Part 2).Nanjing:Electromachining&Mould,2013:23.(in Chinese)
[7]韩伟,何业东.等离子体电解及其在表面技术中的应用[J].吉林:吉林化工学院学报,2005,22(3):10.HAN Wei,HE Yedong.Plasma Electrolysis and Its Application in Surface Enginering[J].Jilin:Journal of Jilin Institute of Chemical Technology,2005,22(3):10.(in Chinese)
[8]权成,何业东.阴极等离子体电解沉积Co、Cr金属涂层及Ni-Cr、Co-Cr合金涂层[J].材料热处理学报,2015,36(6):185.QUAN Cheng,HE Yedong.Preparation of Co and Cr Metal Coating,and Ni-Cr and Co-Cr Alloy Coating by Cathode Plasma Electrolytic Deposition[J].Transactions of Materials and Heat Treatment,2015,36(6):185.(in Chinese)
[9]DENG S J,HE Y D,WANG P,et al.8YSZ Thermal Barrier Coating Toughened by Pt Particles Prepared by Cathodic Plasma Electrolysis Deposition[J].Cailiao Rechuli Xuebao,2015,36(5):191.
[10]王伟泽,何业东,王鹏,等.阴极等离子电解沉积ZrO2-A12O3-Pt复合热障涂层组织及特性[J].材料热处理学报,2015,36(9):173.WANG Weize,HE Yedong,WANG Peng,et al.Microstructure and Properties of ZrO2-A12O3-Pt Composite TBCs Prepared by Cathodic Plasma Electrolytic Deposition[J].Transactions of Materials and Heat Treatment,2015,36(9):36.(in Chinese)
[11]薛文斌,金乾,杜建成,等.不锈钢表面阴极微弧电解沉积氧化铝膜层的性能[J].材料研究学报,2012,26(1):21.XUE Wenbin,JIN Qian,DU Jiancheng,et al.Preparation and Characterization of Alumina Coating on Stainless Steel by Cathodic Microarc Electrodeposition[J].Chinese Journal of Materials Research,2012,26(1):21.(in Chinese)
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[13]李新梅,李银锁,憨勇.溶液配比及电参数对钛阴极微弧电沉积氧化铝涂层的影响[J].硅酸盐学报,2005,33(7):799.LI Xinmei,LI Yinsuo,HAN Yong.Effects of Electrolyte Composition and Electrical Parameter on Alumina Coatings by Cathodic Micros-Arc Electrodeposition on Titanium[J].Journal of the Chinese Ceramic Society,2005,33(7):799.(in Chinese)
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[17]齐慧滨,张剑峰,王德仁,等.20钢表面电脉冲沉积锌层及其耐蚀性能[J].材料保护,2001,34(6):13.QI Huibin,ZHANG Jianfeng,WANG Deren,et al.Corrosion Behavior of Zn Electro-Pulse Deposited Mild Steel[J].Materials Protection,2001,34(6):13.(in Chinese)
[18]韩靖.铝合金新型CPED热防护层组织和性能[D].西安:西安工业大学,2016.HAN Jing.Structures and Properties of New CPED Thermal Protective Coatings on Aluminum Alloy[D].Xi’an:Xi’an Technological University,2016.(in Chinese)
[19]韩伟,何业东,薛润东,等.等离子体电解阴极沉积Y2O3陶瓷涂层[J].材料热处理学报,2005,26(4):83.HAN Wei,HE Yedong,XUE Rundong,et al.Prepared Y2O3 Ceramic Coatings by Cathodic Plasma Electrolysis Deposition[J].Transactions of Materials and Heat Treatment,2005,26(4):83.(in Chinese)