基于电介质击穿理论的异质铝合金搅拌摩擦焊接件整体等离子体氧化研究
|
摘要
目的基于电介质击穿理论,从本质上研究异质金属表面整体氧化过程中的反应机理。方法根据已有的实验基础,在单独的铝合金材料表面和异质铝合金焊接件表面制备一层整体等离子体氧化膜。通过电介质击穿实验,对异质金属整体等离子体氧化过程中存在的时序性和选择性机理进行验证。并基于电介质击穿理论,深入分析不同材质表面固态电介质击穿机理,进而研究异质金属表面整体陶瓷膜生长机理。结果不同材质的物理/化学活性影响等离子体氧化过程,化学活性高的金属优先发生陶瓷化反应,进而引起陶瓷膜的非平衡生长。结论异质金属整体等离子体氧化过程中存在时序性与选择性,这种时序性与选择性与材料的化学活性有关。
The work aims to study the mechanism of the overall plasma oxidation on the surface of dissimilar metals connected part based on dielectric breakdown theory. Based on the existing experiments, a layer of overall plasma oxidation film was prepared on aluminum alloy and dissimilar aluminum alloy welded part. The timing and selectivity mechanism of overall plasma oxidation on the surface of dissimilar metals were verified by dielectric breakdown experiment. Based on dielectric breakdown theory, the mechanism of solid state dielectric breakdown on different material surfaces was deeply analyzed to study the growth mechanism of overall ceramic coating on dissimilar metal surfaces. The physical/chemical activity of different materials affected the plasma oxidation process. Metals with high chemical activity preferentially underwent ceramization reaction, thus causing non-balanced growth of ceramic membrane. There are timing and selectivity in the overall plasma oxidation process of dissimilar metals, which are related to the chemical activity of materials.
The work aims to study the mechanism of the overall plasma oxidation on the surface of dissimilar metals connected part based on dielectric breakdown theory. Based on the existing experiments, a layer of overall plasma oxidation film was prepared on aluminum alloy and dissimilar aluminum alloy welded part. The timing and selectivity mechanism of overall plasma oxidation on the surface of dissimilar metals were verified by dielectric breakdown experiment. Based on dielectric breakdown theory, the mechanism of solid state dielectric breakdown on different material surfaces was deeply analyzed to study the growth mechanism of overall ceramic coating on dissimilar metal surfaces. The physical/chemical activity of different materials affected the plasma oxidation process. Metals with high chemical activity preferentially underwent ceramization reaction, thus causing non-balanced growth of ceramic membrane. There are timing and selectivity in the overall plasma oxidation process of dissimilar metals, which are related to the chemical activity of materials.
引文
[1]SHEN H S.Functionally graded materials:Nonlinear analysis of plates and shells[M].[s.l]:CRC Press,2016.
[2]BOROVINSKAYA I P,GROMOV A A,LEVASHOV EA,et al.Concise encyclopedia of self-propagating hightemperature synthesis:History,Theory,Technology,and Products[M].Amsterdam:Elsevier,2017.
[3]XIAO K,DONG C F,WEI D,et al.Galvanic corrosion of magnesium alloy and aluminum alloy by kelvin probe[J].Journal of Wuhan University of Technology-Material,2016,31(1):204-210.
[4]TRAN Q P,KUO Y C,SUN J K,et al.High quality oxidelayers on Al-alloy by micro-arc oxidation using hybrid voltages[J].Surface and coatings technology,2016,303:61-67.
[5]YANG S Y,ZHOU L,CHENG X W.Micro-arc oxide film of aluminum coating pre-sprayed on AZ31 magnesium alloy[M].Magnesium technology 2016,2016:291-295.
[6]蒋百灵,张先锋,朱静.铝合金镁合金微弧氧化陶瓷层的形成机理及性能[J].西安理工大学学报,2003,19(4):297-302.JIANG Bai-ling,ZHANG Xian-feng,ZHU jing.Formation mechanism and properties of ceramic coatings on aluminum alloy and magnesium alloy by micro-arc oxidation[J].Journal of Xi'an University of Technology,2003,19(4):297-302.
[7]薛文斌,陈廷芳,李永良,等.AZ31镁合金搅拌摩擦焊接头微弧氧化表面防护研究[J].材料工程,2013(12):1-6.XUE Wen-bin,CHEN Ting-fang,LI Yong-liang,et al.Surface protection of AZ31 magnesium alloy friction stir welding joint by micro-arc oxidation[J].Material engineering,2013(12):1-6.
[8]MORITA M,NAITO Y,NIKI E,et al.Antioxidant action of fermented grain food supplement:scavenging of peroxyl radicals and inhibition of plasma lipid oxidation induced by multiple oxidants[J].Food chemistry,2017,237:574-580.
[9]CHEN Y F,ZHOU J X,LIU H T,et al.Overall micro-arc oxidation treatment for AZ31B-6061 magnesiumaluminium dissimilar metal connecting parts[J].Corrosion engineering,science and technology,2017,52(6):470-475.
[10]CALABRESE L,PROVERBIO E,GALTIERI G,et al.Effect of corrosion degradation on failure mechanisms of aluminium/steel clinched joints[J].Materials&design,2015,87:473-481.
[11]STEVAN S,RASTKO V,NENAD R,et al.The formation of tungsten doped Al2O3/ZnO coatings on aluminum by plasma electrolytic oxidation and their application in photocatalysis[J].Applied surface science,2016,377:37-43.
[12]WANG P,HE Y D,DENG S J,et al.Porousα-Al2O3thermal barrier coatings with dispersed Pt particles prepared by cathode plasma electrolytic deposition[J].International journal of minerals,metallurgy,and materials,2016,23(1):92-101.
[13]SHE J H,OHJI T.Fabrication and characterization of highly porous mullite ceramics[J].Materials chemistry and physics,2003,80(3):610-614.
[14]蒋百灵,张先锋.镁合金微弧氧化陶瓷层的生长过程及其耐蚀性[J].中国腐蚀与防护学报,2009,25(2):97-101.JIANG Bai-ling,ZHANG Xian-feng.Growth process and corrosion resistance of ceramic coating on magnesium alloy by micro-arc oxidation[J].Journal of China corrosion and protection,2009,25(2):97-101.
[15]MI T,JIANG B L,LIU Z,et al.Plasma formation mechanism of microarc oxidation[J].Electrochimica acta,2014,123:369-377.
[16]BYON E,JEONG Y,TAKEUCHI A,et al.Apatiteforming ability of micro-arc plasma oxidized layer of titanium in simulated body fluids[J].Surface and coatings technology,2007,201(9-11):5651-5654.
[17]CHEN Y F,SONG X C,ZHOU J X,et al.The study on the overall plasma electrolytic oxidation for 6061-7075dissimilar aluminum alloy welded parts based on the dielectric breakdown theory[J].Materials,2018,11(1):63.
[18]GAO Y H,MORISADA Y,FUJII H,et al.Dissimilar friction stir lap welding of magnesium to aluminum using plasma electrolytic oxidation interlayer[J].Materials science and engineering:A,2018,711:109-118.
[2]BOROVINSKAYA I P,GROMOV A A,LEVASHOV EA,et al.Concise encyclopedia of self-propagating hightemperature synthesis:History,Theory,Technology,and Products[M].Amsterdam:Elsevier,2017.
[3]XIAO K,DONG C F,WEI D,et al.Galvanic corrosion of magnesium alloy and aluminum alloy by kelvin probe[J].Journal of Wuhan University of Technology-Material,2016,31(1):204-210.
[4]TRAN Q P,KUO Y C,SUN J K,et al.High quality oxidelayers on Al-alloy by micro-arc oxidation using hybrid voltages[J].Surface and coatings technology,2016,303:61-67.
[5]YANG S Y,ZHOU L,CHENG X W.Micro-arc oxide film of aluminum coating pre-sprayed on AZ31 magnesium alloy[M].Magnesium technology 2016,2016:291-295.
[6]蒋百灵,张先锋,朱静.铝合金镁合金微弧氧化陶瓷层的形成机理及性能[J].西安理工大学学报,2003,19(4):297-302.JIANG Bai-ling,ZHANG Xian-feng,ZHU jing.Formation mechanism and properties of ceramic coatings on aluminum alloy and magnesium alloy by micro-arc oxidation[J].Journal of Xi'an University of Technology,2003,19(4):297-302.
[7]薛文斌,陈廷芳,李永良,等.AZ31镁合金搅拌摩擦焊接头微弧氧化表面防护研究[J].材料工程,2013(12):1-6.XUE Wen-bin,CHEN Ting-fang,LI Yong-liang,et al.Surface protection of AZ31 magnesium alloy friction stir welding joint by micro-arc oxidation[J].Material engineering,2013(12):1-6.
[8]MORITA M,NAITO Y,NIKI E,et al.Antioxidant action of fermented grain food supplement:scavenging of peroxyl radicals and inhibition of plasma lipid oxidation induced by multiple oxidants[J].Food chemistry,2017,237:574-580.
[9]CHEN Y F,ZHOU J X,LIU H T,et al.Overall micro-arc oxidation treatment for AZ31B-6061 magnesiumaluminium dissimilar metal connecting parts[J].Corrosion engineering,science and technology,2017,52(6):470-475.
[10]CALABRESE L,PROVERBIO E,GALTIERI G,et al.Effect of corrosion degradation on failure mechanisms of aluminium/steel clinched joints[J].Materials&design,2015,87:473-481.
[11]STEVAN S,RASTKO V,NENAD R,et al.The formation of tungsten doped Al2O3/ZnO coatings on aluminum by plasma electrolytic oxidation and their application in photocatalysis[J].Applied surface science,2016,377:37-43.
[12]WANG P,HE Y D,DENG S J,et al.Porousα-Al2O3thermal barrier coatings with dispersed Pt particles prepared by cathode plasma electrolytic deposition[J].International journal of minerals,metallurgy,and materials,2016,23(1):92-101.
[13]SHE J H,OHJI T.Fabrication and characterization of highly porous mullite ceramics[J].Materials chemistry and physics,2003,80(3):610-614.
[14]蒋百灵,张先锋.镁合金微弧氧化陶瓷层的生长过程及其耐蚀性[J].中国腐蚀与防护学报,2009,25(2):97-101.JIANG Bai-ling,ZHANG Xian-feng.Growth process and corrosion resistance of ceramic coating on magnesium alloy by micro-arc oxidation[J].Journal of China corrosion and protection,2009,25(2):97-101.
[15]MI T,JIANG B L,LIU Z,et al.Plasma formation mechanism of microarc oxidation[J].Electrochimica acta,2014,123:369-377.
[16]BYON E,JEONG Y,TAKEUCHI A,et al.Apatiteforming ability of micro-arc plasma oxidized layer of titanium in simulated body fluids[J].Surface and coatings technology,2007,201(9-11):5651-5654.
[17]CHEN Y F,SONG X C,ZHOU J X,et al.The study on the overall plasma electrolytic oxidation for 6061-7075dissimilar aluminum alloy welded parts based on the dielectric breakdown theory[J].Materials,2018,11(1):63.
[18]GAO Y H,MORISADA Y,FUJII H,et al.Dissimilar friction stir lap welding of magnesium to aluminum using plasma electrolytic oxidation interlayer[J].Materials science and engineering:A,2018,711:109-118.