Diagnostics of the thickness of a plasma electrolytic oxidation coating on a nanostructured Mg-Sr alloy
This study is focused on the development of a method for controlling the thickness of a plasma electrolytic oxidation(PEO)coating on a new nanostructured Mg-2wt%Sr alloy.The process of high pressure torsion of a solution-treated Mg-2wt%Sr magnesium alloy was investigated.A significant reduction in the grain size to 500 nm was attained.The PEO coating process on the new nanostructured Mg-2wt%Sr alloy was studied.The produced coating was compared with a PEO coating with a coarse-grained structure.The waveforms of unipolar voltage pulses of a power source were studied,and electrical transients that can be described by an exponential of the second order were revealed.The relationship between the time constant of the electrical transient exponent and the thickness of the PEO coating was justified.A method for estimating the thickness of the PEO coating on the surface of the Mg-2wt%Sr alloy in terms of the parameters of the electric transient was proposed.
V R Mukaeva O B Kulyasova R G Farrakhov E V Parfenov Y F Zheng
Department of Theoretical Basis of Electrical Engineering,Ufa State Aviation Technical University,12 Institute of Physics of Advanced Materials,Ufa State Aviation Technical University,12 Karl Marx Stre Department of Theoretical Basis of Electrical Engineering,Ufa State Aviation Technical University,12 College of Engineering,Peking University,5 Yi-He-Yuan Road,Hai-Dian District,Beijing,China
国际会议
三亚
英文
1-6
2017-11-18（万方平台首次上网日期，不代表论文的发表时间）