Substitution effect on glass formation of NixCo60-xNb40 alloys

Year: 
2016
Month: 
9
Day: 
18
Pages: 
541-544
DOI: 
10.1016/j.matlet.2016.09.066
Author(s): 
Type: 
Journal Articles
Journal: 
Materials Letters
Volume: 
185
Abstract: 

NixCo60-xNb40 alloys with different compositions (x = 0, 15, 30, 45 and 60) were prepared by mechanical alloying, melt spinning and copper mold casting. X-ray diffraction indicates that all the samples prepared by mechanical alloying and melt spinning are amorphous, while the samples prepared by casting are crystalline. Thermal analysis of the amorphous NixCo60-xNb40 alloys reveals that their crystallization temperature increases with increasing Co content, while the heat of crystallization decreases with increasing amount of Co in the alloy.