Abstract:

This work focuses on the analysis and study  of the effects of substitution (addition) in Mg₆₀Ni₂₅Gd_15-xNd_x（x=0,7.5,15） and (Mg₆₀Ni₂₅Gd₁₅)_100-xM_x(M=Fe or Co)（x=0,3,5） amorphous alloys melt\|spun ribbon on their properties including glass\|forming ability （GFA） and thermostability. The substitution of Gd with Nd enhanced the GFA and thermostability.  The former disadvantage of only caring about the improvement of GFA and neglecting the thermostability was conquered. The positive heat of mixing between Fe or Co and main components resulted in the decrease of GFA and thermostability.

Key words: Mg-based amorphous alloy; , glass\, forming ability; , thermostability