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Studies were made of the effect of mechanical pulverization on relaxation,crystallizationand brittle-ductile transition of the anneal-embrittled Fe_(75)Si_(10)B_(15) metallic glass rib-bon.Results show that the Curie temperature,T_C,decreases and the total enthalpy ofrelaxation increases gradually with variation of pulverized time.DSC traces reveal anextra exothermic peak,T_X_1,and a distinct glass transition endothermic peak,T_g_1,withincreasing pulverized time,T_C,T_X_1,and T_g_1 decrease simultaneously,and the exother-mic peak area corresponding to T_X_1 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.
Studies were made of the effect of mechanical pulverization on relaxation, crystallization and brittle-ductile transition of the anneal-embrittled Fe_ (75) Si_ (10) B_ (15) metallic glass rib-bon. Results show that the Curie temperature, T_C and the total enthalpy of lasity increase gradually with variation of pulverized time. DSC traces reveal anextra exothermic peak, T_X_1, and a distinct glass transition endothermic peak, T_g_1, withincreasing pulverized time, T_C, T_X_1, and T_g_1 decrease simultaneously, and the exothermic mic peak area corresponding to T_X_1 增大 步. 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.