Influence of Al and Y on the ignition and flammability of Mg alloys

被引：63
|
作者：
Prasad, Arvind [1 ]
Shi, Zhiming [1 ]
Atrens, Andrej [1 ]
机构：
[1] Univ Queensland, Div Mat, Brisbane, Qld 4072, Australia
来源：
CORROSION SCIENCE | 2012年 / 55卷
基金：
澳大利亚研究理事会;
关键词：
Magnesium; Oxidation; STAINLESS-STEELS; CORROSION BEHAVIOR; OXIDATION BEHAVIOR; PASSIVE FILM; MAGNESIUM; ESCA; CA; ADDITIONS; TEMPERATURE; RESISTANCE;
D O I：
10.1016/j.corsci.2011.10.014
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The influence of alloying on the ignition and flammability was studied. One end of a cylindrical specimen was exposed to a free diffusion flame. Ignition required at least partial melting. Burning extinguished once the flame was withdrawn. Specimen tips of pure Mg, AZ61, and AZ91 ignited upon prolonged flame exposure. There was smouldering and delayed ignition for Mg-1Y. There was no ignition for Mg-5Y specimen tips, attributed to a protective surface oxide containing Y. The results indicate that (i) vigorous burning requires a continued supply of Mg vapour, and (ii) a critical alloy concentration is required to change ignition behaviour. (C) 2011 Elsevier Ltd. All rights reserved.
引用
收藏
页码：153 / 163
页数：11
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