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Content available Densification and Magnetic Properties of Fe Powder Compacts According to Heat-Treatment Conditions
Yoo Hyo-Sang, Kim Yong-Ho, Kim Cheol-Woo, Son Hyeon-Taek
Archives of Metallurgy and Materials
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2023
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Vol. 68, iss. 1
47--50
EN
In this study, the effects of heat-treatment conditions of Fe powder compacts on densification, microstructure, strength and magnetic properties were investigated. The prepared Fe powder was compressed in a mold of diameter 20 mm at a pressure of 800 MPa for 30 sec. This Fe powder compact was heat-treated under different atmospheres (air and 90% Ar + 10% H2 and heat-treatment temperatures (300 and 700℃). The Fe powder compacts heat-treated in an Ar+H2 mixed gas atmosphere showed a denser microstructure and higher density than the Fe powder compacts heat-treated in an air atmosphere. Oxygen content in the heat-treatment conditions played a significant role in the improvement of the densification and magnetic properties.
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