National Taiwan Ocean University Institutional Repository:Item 987654321/23561
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题名: Mg-Y-Cu Bulk Nanocrystalline Matrix Composites Containing WC Particles
作者: Pee Yew Lee;C. Lo;Jason S.C. Jang;J.C. Huang
贡献者: NTOU:Institute of Materials Engineering
國立臺灣海洋大學:材料工程研究所
关键词: Bulk Metallic Glass;Mechanical Alloying (MA);Supercooled Liquid Region;Vacuum Hot Pressing
日期: 2006-07
上传时间: 2011-10-20T08:06:37Z
出版者: Key Engineering Materials
摘要: Abstract:The preparation of Mg49Y15Cu36 metallic glass composite powders was accomplished by mechanical alloying of pure Mg, Y, Cu, and WC powder mixture after 10 h milling. In the ball-milled composites, initial WC particles were homogeneously dispersed in the Mg-based alloy glassy matrix. The metallic glass composites powders were found to exhibit a large supercooled liquid region before crystallization. Bulk metallic glass composites were formed by vacuum hot pressing the as-milled WC/ Mg49Y15Cu36 metallic glass composite powders at 473 K in the pressure range of 0.72-1.20 GPa. BMG composite with submicron WC particles homogeneously embedded in a highly dense nanocrystalline/amorphous matrix was successfully prepared under pressure of 1.20 GPa. It was found that the applied pressure during consolidation could enhance the thermal stability and promotes nanocrystallization of WC/ Mg49Y15Cu36 BMG composites.
關聯: 313, pp.25-30
URI: http://ntour.ntou.edu.tw/handle/987654321/23561
显示于类别:[材料工程研究所] 期刊論文

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