Effect of Homogenization Treatment on the Corrosion Behavior and Mechanism of Mg-Y Alloys

被引：0

作者：

张新 ^{[1
,2
,3
]}

ZHANG Kui ^{[2
]}

WU Zhiquan ^{[4
]}

机构：

[1] Technology Center/General Institute of Emergency Research,Xinxing Cathay International Group

[2] State Key Lab for Fabrication & Processing of Non-ferrous Metals, General Research Institute for Non-ferrous Metals

[3] Xinxing Cathay International Science & Technology Development Co., Ltd

[4] China Datang Coporation Renewable Energy Science and Technology Research Institute

来源：

Journal of Wuhan University of Technology(Materials Science) | 2020年 / 35卷 / 03期

关键词：

homogenization; Mg-Y alloy; corrosion; diffusion kinetics; tafel; corrosion rate;

D O I：

暂无

中图分类号：

TG178 [各种金属及合金的腐蚀、防腐与表面处理];

学科分类号：

080503 ;

摘要：

The effect of homogenization treatment on the corrosion behavior and corrosion mechanism of Mg-Y alloys in 3.5 wt% NaCl solution was investigated by electrochemical characterization,immersion testing and SEM observations.The diffusion kinetics model of Mg-Y alloy was established,and the homogenization system was determined.With increasing of homogenization temperature and time,the Mg24Y5phase gradually decreased,which increased the self-corrosion potential and the high-frequency arc radius.The corrosion resistance of the five alloys could be given as follow:Mg-0.25Y < Mg-8Y < Mg-15Y < Mg-5Y < Mg-2.5Y.The Mg-(0.25,2.5 and 5) Y show localized corrosion in a wide range and small depth,while Mg-(8 and 15) Y showed localized corrosion in a smaller range and larger depth.

引用

页码：635 / 652

页数：18

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