| Title |
Effect of CaO Addition on the High-Temperature Oxidation of Mg Alloys |
| Authors |
박순용(Soon Yong Park); 김세광(Shae Kwang Kim); 이동복(Dong Bok Lee) |
| DOI |
https://doi.org/10.3365/KJMM.2016.54.6.390 |
| ISSN |
1738-8228(ISSN), 2288-8241(eISSN) |
| Keywords |
alloy; casting; oxidation; thermal analysis; magnesium |
| Abstract |
CaO-added Mg alloys were cast in air, hot extruded to thin plates, and oxidized in air at high temperatures. During the casting process, the CaO was decomposed into Ca in the α-Mg matrix and formed Al2Ca precipitates along grain boundaries. A thin, nonuniform CaO-rich layer was formed on the surface during the casting and oxidation. Based on this study, the oxidation mechanism of the CaO-added Mg alloys during casting and oxidation is proposed. (Received August 25, 2015) |