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Microstructure and magnetic properties of iron–cobalt-based alloys processed by metal injection moulding

Jidong Ma, Mingli Qin, Xiangying Ding, Dil Faraz Khan and Houan Zhang


Fe–Co-based soft magnetic alloys with excellent magnetic properties were prepared by metal injection moulding and hot isostatic pressing. The effect of processing parameters on microstructure and magnetic properties of the alloy were investigated. Good magnetic performance of Fe-50 %Co alloy with a maximum permeability of 9550, saturation induction of 2.42 T, and coercive force of 68.14 A m–1 was achieved. Hot isostatic pressing processing resulted in a near-full density and the achieved saturation induction exceeded the reported value (1.99 to 2.26 T) of Fe-50 %Co produced by metal injection moulding.

*Correspondence address, Jidong Ma, School of Materials Science and Engineering, Xiamen University of Technology, No. 600 Ligong Road, Xiamen 361024, P.R. China, Tel.: +8605926291326, Fax: +8605926291326, E-mail:


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Received: 2017-05-06
Accepted: 2017-09-18
Published Online: 2018-01-29
Published in Print: 2018-02-12

© 2018, Carl Hanser Verlag, München