Open AccessCrystallization processes and magnetic properties of FeCoZrMB (M=Nb, V, Cr, Ti) amorphous alloys
Author(s) -
Wanqiu Yu,
Liping Lu
Publication year - 2019
Publication title -
iop conference series. materials science and engineering
Language(s) - English
Resource type - Journals
eISSN - 1757-899X
pISSN - 1757-8981
DOI - 10.1088/1757-899x/668/1/012003
Subject(s) - materials science , crystallization , amorphous solid , coercivity , amorphous metal , melt spinning , annealing (glass) , metallurgy , microstructure , analytical chemistry (journal) , crystallography , alloy , spinning , chemical engineering , composite material , condensed matter physics , chemistry , physics , chromatography , engineering
A series of Fe 40 Co 40 Zr 8 M 2 B 10 (M=Nb, V, Cr, Ti, W, Al) alloys were prepared using melt-spinning. The thermal curve, structure and magnetic property of alloys are examined. Because of different negative heat of mixing between elements, only Fe 40 Co 40 Zr 8 M 2 B 10 (M=Nb, V, Cr, Ti) alloys form amorphous structure. These amorphous alloys are annealed at different temperatures under vacuum conditions. The crystallization processes of four amorphous alloys are similar. In the primary stage of crystallization process, only α-Fe(Co) phase precipitates and Co element mainly distributes in the residual amorphous. For the four alloys after annealing at 550°C, there is a few differences in saturation magnetization ( M s ) and coercivity ( H c ) due to their different microstructures.