Effect of electrolyte on mechanical properties of AZ31B Mg alloy in electrolytic plasma processing

作     者：Byung Hyun AHN Jung Il SONG Bon Heun KOO 

作者机构：School of Nano & Advace material engineering Changwon National University Department of Mechanical Engineering Changwon National University 

出 版 物：《Transactions of Nonferrous Metals Society of China》 (中国有色金属学报（英文版）)

年 卷 期：2014年第24卷第S1期

页      面：125-128页

核心收录：

学科分类：0806[工学-冶金工程] 08[工学] 0818[工学-地质资源与地质工程] 0815[工学-水利工程] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0703[理学-化学] 0813[工学-建筑学] 0814[工学-土木工程] 0702[理学-物理学] 

基　　金：Project(2011-0030058) supported by the National Research Foundation of Korea(NRF) grant funded by the Korea Government(MSIP) Project supported by the MSIP(Ministry of Science,ICT&Future Planning),Korea Project(NIPA-2013-H0301-13-2009) supported by the ITRC(Information technology Research Center) support program supervised by the NIPA(National IT industry Promotion Agency),Korea 

主　　题：AZ31B Mg alloy surface treatment electrolytic plasma processing 

摘      要：Coatings on Mg alloys were prepared using NaOH + Na2SiO3 as basic electrolyte containing electrolyte of Na2SiF6 or NaF. EPP treatment was carried out on AZ31 Mg alloys matrix under a hybrid voltage of AC of 200 V combined with DC of 260 V for 30 min. Structural and morphological analyses of ceramic coatings were analyzed by XRD and SEM. Wear and hardness of coatings were measured by pin-on disk test and Vickers hardness test. The coatings formed in Na2SiF6 and NaF electrolytes were mainly composed of MgO and Mg2SiO4. The measured micro-hardness of coating formed in Na2SiF6 electrolyte was found to be over HV 1100, while, coating formed in NaF electrolyte possessed micro-hardness of HV ~900. These results show that the mechanical properties of AZ31 B Mg alloys can be enhanced by the proper selection of electrolyte agent.