Formation of an incombustible oxide film on a molten Mg-Al-Ca alloy

被引：48
|
作者：
Inoue, Shin-ichi [1 ]
Yamasaki, Michiaki [1 ,2 ]
Kawamura, Yoshihito [1 ]
机构：
[1] Kumamoto Univ, Magnesium Res Ctr, Chuo Ku, 2-39-1 Kurokami, Kumamoto 8608555, Japan
[2] Univ Queensland, Sch Mech & Min Engn, Brisbane, Qld 4072, Australia
来源：
CORROSION SCIENCE | 2017年 / 122卷
关键词：
Magnesium; Calcium; TEM; High-temperature corrosion; Oxidation; HIGH-TEMPERATURE OXIDATION; MECHANICAL-PROPERTIES; SURFACE OXIDATION; MAGNESIUM ALLOY; Y ADDITIONS; BEHAVIOR; IGNITION; RESISTANCE; CALCIUM; PHASE;
D O I：
10.1016/j.corsci.2017.01.026
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A nonflammable Mg-10Al-5Ca (at.%) alloy that can be melted in air without a cover gas or flux is developed. The alloy immediately forms a protective oxide film consisting of three layers, a fine CaO outer layer, a fine MgO intermediate layer, and a coarse MgO innermost layer. The anionic volume ratio of the CaO/MgO interface is 1.48. This interface ratio is sufficiently large to suggest the generation of a strong compressive force in the CaO layer. The dense, uniform fine CaO layer may act as a protective layer preventing the diffusion of oxygen. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码：118 / 122
页数：5
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