Effects of 5%Ni addition on thermal stability and crystallization behavior of Mg65Cu25Tb10 bulk metallic glass

Abstract The effects of 5%Ni addition on the glass forming ability, thermal stability and crystallization behavior of Mg 65 Cu 25 Tb 10 bulk metallic glass were investigated using X-ray diffractometry, differential scanning calorimetry and transmission electron microscopy. The small amount of Ni addition reduces the glass forming ability and thermal stability due to a significant decrease in the crystallization activation energy. Analyses of crystallization kinetics give evidence to the existence of quenched-in nuclei in amorphous Mg 65 Cu 20 Ni 5 Tb 10 . Final crystallization products are basically same for Mg 65 Cu 25 Tb 10 and Mg 65 Cu 20 Ni 5 Tb 10 .