Abstract
The investigation on Curie temperature and magnetocaloric effect of the FeCrMoCBYNi bulk metallic glass (BMG) with different crystallized phases was carried out by XRD, TEM and PPMS. The experimental results show that the Curie temperature (Tc) of Fe45Cr15Mo14C15B6Y2Ni3 BMG with different annealing condition reaches a highest value of 95 K. The value of magnetic entropy change ΔSM (T) of Sample 3 reaches a maxima of 0.48 J/(kg·K) at Tc temperature, which result from the interaction among the precipitated phases of (Fe,Cr)23(C,B)6, Fe3Mo3C and residual amorphous phase. Based on the experiment results, it can be obtained that the Curie temperature, magnetocaloric effect can reach their optimal value at low temperature, when the content of amorphous phase and precipitated phases type run up to certain value. The magnetic properties of Sample 1 with full amorphous phase and Sample 4 with full crystalline phase will both decrease.
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