Effects of Heat-Treatment Conditions on Densification, Microstructure, and Magnetic Properties of Fe Powder
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Published on: July 2, 2012
1Automotive Components and Materials Group, Korea Institute of Industrial Technology, 1110-9 Oryong-dong, Buk-gu, Gwangju 61012, Republic of Korea.
Abstract:
In this study, the effects of heat-treatment conditions on the densification, microstructure, and magnetic properties of Fe powder were investigated. The oxygen content of the Fe powders heat-treated in Ar and Ar-H2 atmosphere was much lower than that of the Fe powder heat-treated in air atmosphere. The density of the compacts of the Fe powder heat-treated in Ar and Ar + H2 atmosphere was higher than that of the compacts of Fe powders heat-treated in air. Oxygen content in the heat-treatment conditions played a significant role in the improvement of the densification and magnetic properties.
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