- Wang Ping
Wang Ping
StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan
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Search for this author on this site - Wu Ting
Wu Ting
StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan
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Search for this author on this site - Li Jie
Li Jie
StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan
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Search for this author on this site - Jia Xin-hao
Jia Xin-hao
StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan
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Search for this author on this site - Gong Chen-long
Gong Chen-long
StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan
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Search for this author on this site - Guo Xiao-yang
Guo Xiao-yang
StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan
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StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan,StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan,StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan,StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan,StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan,StateKeyLaboratoryof Oil andGasReservoirGeologyandExploitation,College of Material Science and Engineering,Southwest Petroleum University,Chengdu,Sichuan
TG174.4
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In order to research the mechanism of nano TiO2 doping effect on micro-arc oxidation coating formed on aluminum alloy, it was treated by using micro-arc oxidation in different concentration of nano TiO2 electrolyte. Surface morphologies,Ti, Al,O and elements content, phase composition of micro-arc oxidation coating were analyzed by SEM, EDS and XRD. Thickness and hardness of micro-arc oxidation coating and surface charge of nano TiO2 in electrolyte were measured. The doping modification model was established in this paper. The results show that the oxidation voltage were raised at initial stage, and then declined after 5minutes.The numbers and sizes of hole on oxidation coating surface decreased, formation efficiency and compactness of coating, and the hardness of surface porosity coating increased. The nano TiO2 was distributed homogeneous on oxidation coating surface, and inhomogeneous on cross-section. Oxidation coating was mainly composed by γ-Al2O3, mullite and little Si phase.
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[Wang Ping, Wu Ting, Li Jie, Jia Xin-hao, Gong Chen-long, Guo Xiao-yang. Mechanism Research of Nano TiO2 Doping Micro-arc Oxidation Coating on Aluminum Alloy[J]. Rare Metal Materials and Engineering,2017,46(2):479~483.]
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History
- Received:January 03,2015
- Revised:January 26,2015
- Adopted:March 25,2015
- Online: April 10,2017