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Effect of substituting elements on thermal stability and glass-formingability of an Al-based Ale Nie Er metallic glass
2017-01-05 16:31  


Zhang W, Chen S, Zhu Z, et al. Journal of Alloys and Compounds, 2017, 707: 97-101.

Abstract:

Addition of a small amount of La and Co enhances the stabilization of supercooled liquid and glass-forming ability (GFA) of an Al85Ni7Er8 metallic glass. The Al85Ni5Co2Er6La2 alloy exhibits large super-cooled liquid region of 40 K, high GFA with a critical thickness of 450 mm, and the viscosities on the orderof 107-109 Pa s in the supercooled liquid state. The Al-based glassy nano-scale patterns were formed by imprinting, indicating its good thermoplastic formability. The possible mechanism for the improvement of the supercooled liquid stability of the Al-Ni-Er alloy by addition of La and Co elements was discussedin terms of the crystallization behavior.

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