Effect of Na_2CO_3 on Energy Consumption of Micro-arc Oxidation of Magnesium Alloy

作     者：Wang Xiaobo,Tian Xiubo,Gong Chunzhi,Yang Shiqin State Key Laboratory of Advanced Welding and Joining,Harbin Institute of Technology,Harbin 150001,China 

作者机构：Harbin Inst Technol Sch Mat Sci & Engn State Key Lab Adv Welding & Joining Harbin 150001 Peoples R China 

出 版 物：《稀有金属材料与工程》 (Rare Metal Materials and Engineering)

年 卷 期：2012年第41卷第S1期

页      面：187-189页

核心收录：

学科分类：080503[工学-材料加工工程] 0806[工学-冶金工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 

基　　金：NSFC(50773015) 

主　　题：magnesium alloy micro-arc oxidation Na2CO3 energy consumption 

摘      要：Micro-arc oxidation(MAO)coatings were fabricated on AZ31 magnesium alloy and the effect of Na2CO3 on the energy consumption was *** results show that the concentration of Na2CO3 has a critical effect on the discharge behavior of MAO *** increasing the Na2CO3 concentration in the electrolyte,the arcing voltage and working voltage decrease.A proper concentration is needed to achieve the highest growth rate of the coatings and the lowest energy consumption per unit coating *** addition of Na2CO3 decreases the arcing and working voltage of MAO *** is attributed to that the Na2CO3 leads to much more micropores due to the decomposition of MgCO3 to produce more gas.