Microstructure effects on the electrochemical corrosion properties of Mg-4.1% Ga-2.2% Hg alloy as the anode for seawater-activated batteries

作     者：Yu, Kun Tan, Xin Hu, Yanan Chen, Fuwen Li, Shaojun 

作者机构：Cent S Univ Sch Mat Sci & Engn Changsha 410083 Peoples R China 

出 版 物：《CORROSION SCIENCE》 (腐蚀科学)

年 卷 期：2011年第53卷第5期

页      面：2035-2040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）] 

主　　题：Magnesium Galvanostatic Anodic dissolution 

摘      要：Mg-Ga-Hg alloy is a new material with special electrochemical corrosion properties that make it ideal for use in seawater-activated battery anodes. The effects of microstructure and phase transformation on the electrochemical properties of the Mg - 4.1% Ga - 2.2% Hg alloy were studied and compared with Mg-Al system alloys. The results show that the Mg - 4.1% Ga - 2.2% Hg alloy, when used as an anode, has an appropriate corrosion potential in a half-cell test and superior electrochemical properties in a single cell assembled with CuCl. The Mg3Hg and Mg21Hg5Ga3 phases of the alloy influence its corrosion behaviour and provide a steady corrosion potential during the discharge process. (C) 2011 Elsevier Ltd. All rights reserved.