Effects of neutron irradiation on the structure of an amorphous Cu40Ti60alloy have been studied by internal friction measurements. After irradiation, the position of the first internal friction peak remains almost unchanged and the shoulder position shifts towards a higher temperature by about 5 K, which indicates that the Cu40Ti60glass becomes more stable. These results are finally discussed based on the concept of changes of chemical shorthyphen;range ordering and geometrical shorthyphen;range ordering due to radiation damage.
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