@inproceedings{dd8f8d546f3f4664bb62f51007a0867e,
title = "Formation of the surface oxide film on as-cast Mg-7Li alloy",
abstract = "The excellent properties of Mg-Li alloys make them suitable light fabrication materials used extensively in many applications. The microstructure and the surface oxide film at different temperature of as-cast Mg-7Li alloy were investigated by optical microscope(OM), scanning electron microscopy(SEM), X-ray diffraction(XRD) and electronic analytical balance. Results showed that Mg-7Li alloy was composed of mainly α phase and β phase. With increasing temperature, the morphology of the alloy surface varied from the formation of a very thin oxide film, large amounts of oxide particles to the thick and coarse film with a mass of cellular protuberances in size of 40-80μm. The ratio of oxidation weight gains rose from 0.08\% to 11.58\%. The surface oxide film consisted of mainly magnesium oxide(MgO) phase and lithium peroxide(Li2O2) phase, resulting from the reaction of oxygen with Mg and Li. The volume of the oxides on β phase greater than that on α phase led to the formation of cellular protuberance on the surface of Mg-7Li alloy at high temperature.",
keywords = "Mg-7Li alloy, Microstructure, Morphology, Oxide film",
author = "Li, \{Jun Gang\} and Ying Lv and Li, \{Mu Qin\} and Wei, \{Zun Jie\} and Meng, \{Xiang Cai\}",
year = "2011",
doi = "10.4028/www.scientific.net/AMR.239-242.1082",
language = "英语",
isbn = "9783037851234",
series = "Advanced Materials Research",
pages = "1082--1087",
booktitle = "Advanced Materials",
note = "2011 International Conference on Chemical Engineering and Advanced Materials, CEAM 2011 ; Conference date: 28-05-2011 Through 30-05-2011",
}