Oxidation behavior of BN/(Al-Mg) metal matrix composites

被引：1
|
作者：
Woo, WS
Jung, WG
Lee, DB
机构：
[1] Sungkyunkwan Univ, Dept Adv Mat Engn, Suwon 440746, South Korea
[2] Kookmin Univ, Sch Met & Mat Engn, Seoul 136702, South Korea
来源：
PRICM 5: THE FIFTH PACIFIC RIM INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS AND PROCESSING, PTS 1-5 | 2005年 / 475-479卷
关键词：
composite; oxidation; aluminum; magnesium; aluminum nitride; boron nitride; BORON-NITRIDE; INTERFACIAL REACTION; AL COMPOSITE; ALUMINUM;
D O I：
10.4028/www.scientific.net/MSF.475-479.975
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Metal matrix composites (MMCs) that consisted of Al-Mg matrix reinforced with initially added BN particles were fabricated using the pressureless infiltration technique, and their oxidation behavior was investigated at 500 and 550 degrees C in air. Initially added BN particles were partly consumed to make AIN, as another reinforcing particles. Another reaction product was MgAlB2 dispersoids. Despite of the presence of these reinforcing particles, the oxidation resistance was not good owing to the formation of MgO-rich scale due to the preferential oxidation of Mg in the MMCs. Detailed microstructures and oxidation mechanism of the prepared MMCs are proposed.
引用
收藏
页码：975 / 978
页数：4
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