Effect of Ca and CaO on the high temperature oxidation of AZ91D Mg alloys

被引：38

作者：

Lee, Dong-Bok ^{[1
]}

Hong, Lee-Seok ^{[1
]}

Kim, Young-Jig ^{[1
]}

机构：

[1] Sungkyunkwan Univ, Sch Adv Mat Sci & Engn, Suwon 440746, South Korea

来源：

MATERIALS TRANSACTIONS | 2008年 / 49卷 / 05期

关键词：

magnesium; calcium; calcium oxide; oxidation;

D O I：

10.2320/matertrans.MC200799

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Magnesium alloys of AZ91D, AZ91D + (1, 3, 5) mass% Ca, and AZ91D + (0.5, 1) mass% CaO were cast and oxidized at high temperature in atmospheric air in order to study the effect of Ca and CaO on the oxidation. The microstructure of the CaO-added alloys was similar to that of the Ca-added alloys. Ca and CaO both formed Al2Ca in the alloys, but Ca was more effective than CaO in increasing the oxidation resistance of Mg alloys. The microstructure and composition of the scale formed on the CaO-added alloys were similar with those on the Ca-added alloys.

引用

页码：1084 / 1088

页数：5

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