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Growth Kinetics and Corrosion Protection Properties of Plasma Electrolytic Oxidation Coatings on Biodegradable Mg−2% Sr Alloy
Surface Engineering and Applied Electrochemistry Pub Date : 2020-04-06 , DOI: 10.3103/s1068375520010111 D. M. Lazarev , R. G. Farrakhov , V. R. Mukaeva , O. B. Kulyasova , E. V. Parfenov , A. L. Yerokhin
中文翻译:
可生物降解的Mg-2%Sr合金上等离子体电解氧化涂层的生长动力学和腐蚀防护性能
更新日期:2020-04-06
Surface Engineering and Applied Electrochemistry Pub Date : 2020-04-06 , DOI: 10.3103/s1068375520010111 D. M. Lazarev , R. G. Farrakhov , V. R. Mukaeva , O. B. Kulyasova , E. V. Parfenov , A. L. Yerokhin
Abstract
The growth kinetics of plasma electrolytic oxidation coatings on biodegradable Mg−2% Sr alloy with coarse- and ultrafine-grain structures was evaluated. The parameters characterizing the coating growth kinetic were estimated for the alloys with different structures on the basis of a dissolution/deposition model, and their correlation with the coating properties was demonstrated. The coating morphology and phase composition were related to the protective properties of the alloys and investigated electrochemically in the Ringer’s solution, using uncoated and coated samples. Equivalent circuits modeling “alloy−electrolyte” and “alloy−coating−electrolyte” systems were developed. The PEO coating produced on the alloy with the ultra-fine grain structure displayed the best protective properties.中文翻译:
可生物降解的Mg-2%Sr合金上等离子体电解氧化涂层的生长动力学和腐蚀防护性能