J. Mater. Sci. Technol. ›› 2008, Vol. 24 ›› Issue (02): 161-164.

• 论文 • 上一篇    下一篇

Investigation of Glass Formability in Al-Co-Y Ternary System

董盼;张甲;侯万良;常新春;王建强;全明秀   

  1. Shenyang National Laboratory for Materials Science; Institute of Metal Research
  • 收稿日期:2006-09-22 修回日期:2007-02-20 出版日期:2008-03-28 发布日期:2009-10-10
  • 通讯作者: WANG Jian Qiang

Investigation of glass formability in Al-Co-Y ternary system

Pan DONG, Jia ZHANG, Wanliang HOU, Xinchun CHANG, Jianqiang WANG, Mingxiu QUAN   

  1. Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China
  • Received:2006-09-22 Revised:2007-02-20 Online:2008-03-28 Published:2009-10-10
  • Contact: Jianqiang WANG

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摘要： 详细研究了Al-Co-Y三元合金中相结构演化行为与玻璃形成能力之间的关系．研究表明，合金的玻璃形成能力敏感于化学成分，其中Al88Co5Y7表现出最佳玻璃形成能力，临界厚度达230 微米．由此反映出，相选择是寻找具有良好玻璃形成能力合金成分的一个有效的方法．

关键词: Al基非晶合金, 结构演化, 玻璃形成能力

Abstract: The glass formation was investigated in the melt-spun Al-rich Al-Co-Y alloys by the microstructure evolution. The best glass former Al88Co5Y7 with the thickness of 230 μm was found, and its glass forming ability (GFA) was higher than that of previously reported Al88Co4Y8 alloy. This result indicates that GFA is strongly sensitive to the alloy composition in the system. The phase selection method is an effective way to locate the optimum glass formation composition rather than Trg and △Tx parameters.

Key words: Al amorphous alloy, Microstructure evolution, Glass forming ability