Improved Corrosion Behavior of Biodegradable Mg-4Zn-1Mn Alloy Modified by Sr/F co-doped CaP Micro-arc Oxidation Coatings

作     者：Weirong LI Yanfang LI Qian LI Xuan XIONG Fangfei LIU Ronghui LI Heng LI Dong PANG Jia LU Xuan ZHANG 

作者机构：Dongguan Eontec Co.Ltd.DongguanGuangdong523000China School of Mechanical EngineeringTiangong UniversityTianjin 300387China 

出 版 物：《Research and Application of Materials Science》 (材料科学与应用（英文）)

年 卷 期：2023年第5卷第2期

页      面：1-8页

学科分类：08[工学] 080502[工学-材料学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

主　　题：Biodegradable Mg alloys Mg-4Zn-1Mn alloy Micro-arc oxidation Sr/F co-doped CaP coatings 

摘      要：The Sr/F co-doped CaP(Sr/F-CaP)coatings were prepared by micro-arc oxidation(MAO)under different voltages to modify the microstructure and corrosion behavior of Mg-4Zn-1Mn *** surface and interface characteristics investigated using scanning electron microscopy(SEM)and energy dispersive X-ray spectrometer(EDS)showed that the MAO coatings displayed uneven crater-like holes and tiny cracks under lower voltage,while they exhibited relatively homogeneous crater-like holes without cracks under higher *** thickness of MAO coatings increased with increasing *** corrosion behavior of Mg-4Zn-1Mn alloy was improved by the MAO *** MAO coatings prepared under 450 V and 500 V voltages possessed the best corrosion resistance with regard to the electrochemical corrosion tests and immersion corrosion tests,*** MAO coatings fabricated under 450-500 V could provide a better corrosion protection effect for the substrate.