발간논문

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Vol.24, No.4, 492 ~ 498, 1986
Title
Effects of Heat Treatment on the Magnetic properties of Ductile Fe - 25Cr - 14Co - 2Si - 1.5 Ti Permanent Magnet Alloy
김윤배Yoon Bae Kim, 송세안Se Ahn Song, 김택기Taik Kee Kim
Abstract
To study the effect s of heat treatment on the magnetic properties of ductile Fe-Cr-Co permanent magnets, a composition of Fe-25Cr-l4Co-2Si-1.5Ti alloy was prepared by induction melting, and the optimum heat treatment procedure and the microstructures of the alloy were investigated. After step aging treatments, it was concluded that aging at high temperature effects largely on the squareness of the demagnetization currve and aging at low temperature effects largely on the coercive force. The sample which was thermomagnetically treated for 10 minutes at 675℃ showed clearly the evidence of spinodal decomposition of the FeCo-rich phases from the Cr-rich matrix.
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