Aging behaviour and electrochemical properties in Mg-4.8Hg-8Ga (wt.%) alloy

被引：28

作者：

Feng Yan ^{[1
]}

Wang Ri-chu ^{[1
]}

Peng Chao-qun ^{[1
]}

Qiu Ke ^{[1
]}

Wang Nai-guang ^{[1
]}

Zhang Chun ^{[1
]}

Zhang Jia-pei ^{[1
]}

机构：

[1] Cent S Univ, Sch Mat Sci & Engn, Changsha 410083, Peoples R China

来源：

CORROSION SCIENCE | 2010年 / 52卷 / 10期

关键词：

Magnesium; Galvanostatic; Polarization; Potentiostatic; TEM; Anodic dissolution; CORROSION BEHAVIOR; MAGNESIUM; ACTIVATION; ALUMINUM; ANODES; BATTERIES; AZ91D; AGCL; GA;

D O I：

10.1016/j.corsci.2010.06.024

中图分类号：

T [工业技术];

学科分类号：

120111 [工业工程];

摘要：

All precipitate morphologies in Mg-4.8%Hg-8%Ga alloy for a range of aging temperatures are investigated in detail using TEM and OM. The results show that Mg5Ga2 and Mg21Ga5Hg3 are the dominant precipitate in Mg-4.8%Hg-8%Ga alloy. Mg5Ga2 phases precipitate in slab and massive morphologies. Mg21Ga5Hg3 phases precipitate in dispersed particles. There have few papers focused on the relationship between the aging behaviour and the electrochemical and corrosion properties in Mg-4.8%Hg-8%Ga alloy. This study elaborates on the morphological evolution of Mg5Ga2 and Mg21Ga5Hg3 precipitates as a function of aging time and temperature and investigates the associated second phase morphology-electrochemical and corrosion response. (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3474 / 3480

页数：7

共 44 条

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Effect of grain size and twins on corrosion behaviour of AZ31B magnesium alloy [J].