Misch metal based metallic glasses

• Published in: Journal of alloys and compounds 2008-02, Vol.450 (1), p.181-184
• Main Authors: Li, Ran, Yang, Qing, Pang, Shujie, Ma, Chaoli, Zhang, Tao
• Format: Article
• Language: English
• Subjects: Amorphous materials; Condensed matter: structure, mechanical and thermal properties; Deformation and plasticity (including yield, ductility, and superplasticity); Equations of state, phase equilibria, and phase transitions; Exact sciences and technology; Glass transitions; Mechanical and acoustical properties of condensed matter; Mechanical properties of solids; Metallic glass; Physics; Rapid solidification; Rare earth alloys; Specific phase transitions; Thermal properties
• ISSN: 0925-8388; 1873-4669
• DOI: 10.1016/j.jallcom.2006.10.070

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 GFA. The reduced glass transition temperature is a better indicator to explore metallic glasses with high GFA. Furthermore, the mechanical properties of Mm 65Al 10Co 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.