Achieving balanced degradation and biological performance in Mg-Ag-Mn alloys via PEO process:Role of Mn addition and post-casting heat treatmentOA
The present work examines the influence of Mg-Ag-(Mn)substrates on plasma electrolytic oxidation(PEO)film formation,with systematic examinations of microstructural features,corrosion resistance and biological performance.It is revealed that silver(Ag)species enrich at the PEO film/substrate interface while simultaneously distributing throughout the film as Ag_(2)O nanoparticles.Manganese(Mn)species incorporate predominantly as MnO_(2) within the film.The synergistic combination of Mn micro-alloying and post-casting heat treatment(PCHT)of the substrate enables the formation of a thicker PEO film with reduced defectiveness,which significantly enhances its corrosion resistance and precisely tailors the release kinetics of Mg^(2+),Ag^(+)and Mn^(2+).Hence,PEO treatment of compositionally and microstructurally optimized Mg-Ag-based substrates achieves an optimal balance between corrosion protection and biological performance,which is regarded as a promising advancement for developing multi-functional Mg-based orthopedic implants.
You Lv;Yun Zhang;Xin Qiu;Valery Konstantinovich Sheleg;Zehua Dong;Xinxin Zhang
Key Laboratory of Material Chemistry for Energy Conversion and Storage,Ministry of Education,Hubei Key Laboratory of Material Chemistry and Service Failure,Hubei Engineering Research Centre for Biomaterials and Medical Protective Materials,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,PR China China-Belarus Belt and Road Joint Laboratory for Advanced Materials and Manufacturing,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,PR ChinaKey Laboratory of Material Chemistry for Energy Conversion and Storage,Ministry of Education,Hubei Key Laboratory of Material Chemistry and Service Failure,Hubei Engineering Research Centre for Biomaterials and Medical Protective Materials,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,PR ChinaChina-Belarus Belt and Road Joint Laboratory for Advanced Materials and Manufacturing,Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun 130022,PR ChinaDepartment of Mechanical Engineering Technology,Belarusian National Technical University,Minsk 220027,BelarusKey Laboratory of Material Chemistry for Energy Conversion and Storage,Ministry of Education,Hubei Key Laboratory of Material Chemistry and Service Failure,Hubei Engineering Research Centre for Biomaterials and Medical Protective Materials,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,PR ChinaKey Laboratory of Material Chemistry for Energy Conversion and Storage,Ministry of Education,Hubei Key Laboratory of Material Chemistry and Service Failure,Hubei Engineering Research Centre for Biomaterials and Medical Protective Materials,School of Chemistry and Chemical Engineering,Huazhong University of Science and Technology,Wuhan 430074,PR China
矿业与冶金
Plasma electrolytic oxidationPost-casting heat treatmentIonic release kineticsCorrosion resistanceBiological performanceMg-Ag-Mn alloy
《Journal of Magnesium and Alloys》 2026 (5)
P.115-135,21
supports from the National Natural Science Foundation of China(52371065)the Postdoctoral Fellowship Program of China Postdoctoral Science Foundation(GZC20250075).
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