徐方涛,夏原,李光,吴振强

• 1:中国科学院力学研究所
• 2:中国科学院研究生院

摘要(Abstract)：

采用等离子体电解氧化技术(Plasma Electrolysis Oxidation,PEO)在铸造铝硅合金表面制备了陶瓷层,电解液为磷酸盐系列。利用PEO自动采集控制系统对工作电流、电压进行实时采集,利用表面轮廓仪、SEM对陶瓷层的粗糙度和表面形貌进行了研究。结果表明:PEO过程中存在四个典型阶段性特征。所制备陶瓷层存在孔洞和微裂纹,尺寸随处理时间延长而增大。瞬态伏安特性研究表明,PEO存在阳极氧化和击穿放电两个重要特征,陶瓷的生长主要在击穿放电阶段,其陶瓷化过程为击穿放电、高温烧结、微弧熄灭、氧化物冷凝。

关键词(KeyWords)： 等离子体电解氧化;铝硅合金;磷酸盐;瞬态伏安特征

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(10572141);; 非线性力学国家重点实验室第21批开放课题

作者(Author): 徐方涛,夏原,李光,吴振强

参考文献(References)：

• [1]Yerokhin A L,Nie X,Leyland A,et al.Plasma electrolysis for surface engineering[J].Surf Coat Tech,1999,122:73-93.
• [2]关永军,夏原.等离子体电解沉积的研究现状[J].力学进展,2004,34(2):237-249.GUAN Yong-jun,XIA Yuan.Review on plasma electrolytic deposition[J].Advanced in Mechanics,2004,34(2):237-249.
• [3]吴振强,夏原,张春杰,等.钢基铝镀层转化为陶瓷层的演变规律研究[J].无机材料学报,2007,22(3):534-538.WU Zhen-qiang,XIA Yuan,ZHANG Chun-jie,et al.Evolution of aluminium layer transformed into ceramic caoting on steel substrate[J].Journal ofInorganic Materials,2007,22(3):534-538.
• [4]Krishtal M M.Effect of structure os aluminium-silicon alloys on the process of formation and charateristcs of oxide layer in microarc oxidizing[J].Met SciHeat Treat,2004,46(9-10):377-384.
• [5]Nykyforchyn H M,Klapkiv M D,Posuvailo V M.Properties of synthesised oxide-ceramic coatings in electrolyte plasma on aluminium alloys[J].Surf CoatTech,1998,100-101:219-221.
• [6]Chigrinova N M,Chigrinov V E,Kukharev A A.Formation of coatings by anodic microarc oxidation and their operation in thermally-stressed assemblies[J].Powder Metall Met Ceram,2001,40(5-6):213-220.
• [7]WANG L,NIE X.Silicon effects on formation of EPO oxide coatings on aluminum alloys[J].Thin Solid Films,2006,494(1-2):211-218.
• [8]XUE W,SHI X,HUA M,et al.Preparation of anti-corrosion films by microarc oxidation on an Al-Si alloy[J].Appl Sur Sci,2007,253(14):6118-6124.
• [9]薛文斌,王超,陈如意,等.ZL101铸造铝合金微弧氧化陶瓷层的组织和性能[J].材料热处理学报,2003,24(2):20-23.XUE Wen-bin,WANG Chao,CHEN Ru-yi,et al.Structure and performance of ceramic coating deposited on ZL101 casting aluminum alloy by microarcoxidation[J].Transactions of Materials and Heat Treatment,2003,24(2):20-23.
• [10]张永君,李文芳,王福会.高Si压铸Al合金ADC12的微弧氧化表面改性[J].金属学报,2005,41(12):1289-1292.ZHANG Yong-jun,LI Wen-fang,WANG Fu-hui.Surface modification of die casting Al alloy ADC12 with high Si content by micro-arc oxidation[J].ActaMetallrugica Sinica,2005,41(12):1289-1292.
• [11]罗胜联,周海晖,陈金华,等.ZL系列铸铝合金的微弧氧化[J].中国有色金属学报,2002,12(3):491-495.LUO Sheng-lian,ZHOU Hai-hui,CHEN Jin-hua,et al.Microarc oxidation of ZL cast aluminum alloys[J].The Chinese Journal of Nonferrous Metals,2002,12(3):491-495.
• [12]Terleeva O P,Belevantsev V I,Slonova A I.Types of discharges in electrochemical microplasma processes[J].Prot Met,2003,39(1):57-61.

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