Densification and Magnetic Properties of Fe Powder Compacts According to Heat-Treatment Conditions

Authors

  • Hyo-Sang Yoo Korea Institute of Industrial Technology, Automotive Materials & Components R&D Group, 1110-9 Oryong-dong, Buk-gu, Gwangju 61012, Republic of Korea https://orcid.org/0000-0002-7715-744X
  • Yong-Ho Kim Korea Institute of Industrial Technology, Automotive Materials & Components R&D Group, 1110-9 Oryong-dong, Buk-gu, Gwangju 61012, Republic of Korea https://orcid.org/0000-0002-4748-6728
  • Cheol-Woo Kim Korea Institute of Industrial Technology, Automotive Materials & Components R&D Group, 1110-9 Oryong-dong, Buk-gu, Gwangju 61012, Republic of Korea https://orcid.org/0000-0002-9007-0269
  • Hyeon-Taek Son Korea Institute of Industrial Technology, Automotive Materials & Components R&D Group, 1110-9 Oryong-dong, Buk-gu, Gwangju 61012, Republic of Korea https://orcid.org/0000-0001-7062-6779

DOI:

https://doi.org/10.24425/amm.2023.141471

Abstract

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.

Published

2023-03-06

How to Cite

Yoo, Hyo-Sang, et al. “Densification and Magnetic Properties of Fe Powder Compacts According to Heat-Treatment Conditions”. Archives of Metallurgy and Materials, vol. 68, no. 1, Mar. 2023, doi:10.24425/amm.2023.141471.

Issue

Vol. 68 No. 1 (2023)

Section

Articles