Effect of heat treatment process on the properties of Fe73Si13B10Cu1 Nb3 soft magnetic powder
Fe73Si13B10Cu1Nb3 alloy powder was prepared by water-gas atomization process,and the effects of heat treatment temperature and time on powder properties and soft magnetic properties were studied.The results show that the crystallization volume fraction of α-Fe and Fe-B phases increases gradually with the increase of heat treat-ment temperature and heat treatment time,and the grain size also increases gradually.The Fe73Si13B10Cu1 Nb3 alloy powder after heat treatment at 580 ℃ for 60 min has excellent soft magnetic properties:Bs=139.67emu/g、Hc=6.54 A/m.
Fe73Si13B10Cu1 Nb3 soft magnetic powderrwater-gas atomizationcrystallisation heat treatment temper-aturecrystallisation heat treatment time
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