Thermal stability, phase transformations and mechanical properties of a Fe64B24Y4Nb6 metallic glass

Fe64B24Y4Nb6 metallic glass ribbon and its bulk counterpart were characterized by conventional high rate differential scanning calorimetry, electron probe microanalysis, in-situ X-ray diffractometry, resolution transmission microscopy instrumented microhardness. The possesses a forming ability. It is thermally stable up to 585 °C while primary crystallization of Fe2B FeB occurs at 677 °C. Estimated the Kissinger Moynihan’s methods, activation energy transition was shown be lower than that crystallization. After total crystallization, alloy contains terminal Fe solid solution, Fe2B, FeB, Fe3B8Nb7 BFe14Y2 phases additional yttria as well. loading unloading curves well indentation features are very suitable in order evidence effect various events on mechanical behavior alloy. hardness amorphous fully crystallized alloys amount 1198 ± 21 461 65 HV0.5, respectively their reduced Young modulus close 174 5 GPa. deformation ability twice glassy