Studies were made of the effect of mechanical pulverization on relaxation,crystallizationand brittle-ductile transition of the anneal-embrittled Fe75Si10B15 metallic glass rib-bon.Results show that the Curie temperature,TC,decreases and the total enthalpy ofrelaxation increases gradually with variation of pulverized time.DSC traces reveal anextra exothermic peak,TX1,and a distinct glass transition endothermic peak,Tg1,withincreasing pulverized time,TC,TX1,and Tg1 decrease simultaneously,and the exother-mic peak area corresponding to TX1 increases gradually.The surface slip-steps of flakyparticles and their corresponding shear are produced by pulverizing the pre-embrittledamorphous glass.The lost ductility of the glass may restore during annealing.
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