Misch metal based metallic glasses

作者：Li Ran; Yang Qing; Pang Shujie; Ma Chaoli; Zhang Tao^*

来源：Journal of Alloys and Compounds, 2008, 450(1-2): 181-184.

DOI：10.1016/j.jallcom.2006.10.070

• metallic glass
• rapid solidification
• thermal properties
• rare earth alloys
• amorphous materials

In this paper, a glass-forming range of metallic glasses based on Ce-rich misch metal (Mm) was pinpointed in Mm-Al-Co composition map by melt spinning. The thermal analysis indicated that the wide supercooled liquid region (above 60 K) can be found out in a large composition range in Mm-Al-Co system. The investigation of the glass-forming ability (GFA) in this system indicated a glassy composition with a larger supercooled liquid region wouldn';t be the glassy former with higher GEA. The reduced glass transition temperature is a better indicator to explore metallic glasses with high GFA. Furthermore, the mechanical properties Of Mm(65)Al(10)CO(25) bulk glassy samples were evaluated in a compressive measurement. The obvious advantages of the Mm-based BMGs with high GFA, good mechanical properties and low material cost make these BMGs hopeful to be applied in the future.

• 出版日期2008-2-14
• 单位北京航空航天大学