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Characterization of Minerals, Metals, and Materials 2020 pp 271–281Cite as

Influence on the Structural and Magnetic Properties of the Pre-alloyed Gas-Atomized Maraging Steel Powder During Mechanical Milling

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Abstract

We investigated the influence on the structural and magnetic properties of gas-atomized maraging steel powder during mechanical milling. The as-received powder comprised, primarily, martensite phase (α) and traces of retained austenite (γ); the saturation magnetization (MS) and intrinsic coercivity (HCI), at 300 K, were ~176 Am2/kg and ~3 kA/m, respectively. Powders milled from 3 to 8 h comprised nanocrystalline α; the MS and HCI ranged from ~164 to 169 Am2/kg and ~4.9 to 6.7 kA/m, respectively. Milling above 8 h formed austenite and extraneous intermetallic phases, reduced MS, and increased HCI. The MS increased with the decrease in the temperature from 300 to 60 K, for both the as-received and milled powders. The thermomagnetic behavior of the as-received and the milled powders from 300 to 900 K was fairly reversible. The magnetic properties of as-received and powder milled for 5 h were comparatively better than the powder milled for 56 h.

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Acknowledgements

The authors would like to thank the College of Engineering and Computer Science and the Institute of Advanced Vehicle Systems at the University of Michigan in Dearborn for the financial and infrastructural support to conduct the experimental work.

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Authors and Affiliations

  1. Department of Mechanical Engineering, University of Michigan, Dearborn, 48128, USA

    G. V. Thotakura & T. V. Jayaraman

  2. Naval Research Laboratory, Materials Science and Technology Division, Washington, DC, 20375, USA

    R. Goswami

Authors
  1. G. V. Thotakura
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  2. R. Goswami
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  3. T. V. Jayaraman
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Corresponding author

Correspondence to T. V. Jayaraman .

Editor information

Editors and Affiliations

  1. CanmetMATERIALS, Hamilton, ON, Canada

    Jian Li

  2. ArcelorMittal Global R&D, Schererville, IN, USA

    Mingming Zhang

  3. Michigan Technological University, Houghton, MI, USA

    Bowen Li

  4. Military Institute of Engineering, Rio de Janeiro, Brazil

    Sergio Neves Monteiro

  5. Al Isra University, Amman, Jordan

    Shadia Ikhmayies

  6. Middle East Technical University, Ankara, Turkey

    Yunus Eren Kalay

  7. Michigan Technological University, Houghton, MI, USA

    Jiann-Yang Hwang

  8. University of New South Wales, Canberra, BC, Australia

    Juan P. Escobedo-Diaz

  9. Los Alamos National Laboratory, Los Alamos, NM, USA

    John S. Carpenter

  10. United States Army Research Laboratory, Adelphi, MD, USA

    Andrew D. Brown

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Cite this paper

Thotakura, G.V., Goswami, R., Jayaraman, T.V. (2020). Influence on the Structural and Magnetic Properties of the Pre-alloyed Gas-Atomized Maraging Steel Powder During Mechanical Milling. In: Li, J., et al. Characterization of Minerals, Metals, and Materials 2020. The Minerals, Metals & Materials Series. Springer, Cham. https://doi.org/10.1007/978-3-030-36628-5_25

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