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Structures and mechanical properties of amorphous alloy compacts prepared in an inert atmosphere

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Abstract

A new technique has been developed to prepare amorphous alloy compacts where all the processes, from powdering to consolidation, are carried out in an argon atmosphere. Amorphous alloy ribbons were crushed into powders at low temperature using a planetary ball mill. These powders were consolidated using a cubic-type anvil apparatus under a high hydrostatic pressure. Amorphous alloy powders and compacts thus prepared were oxidized to a much lesser extent than those prepared in air using a conventional method. The compressive strength of the compacts prepared in an argon atmosphere was higher by 30%–100% than that of those prepared conventionally in air. The strengthening mechanism is discussed based on the results of characterization of the powders and compacts.

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Authors and Affiliations

  1. Research and Development Department, Nippondenso Co. Ltd, Showa-cho, Kariya, 448, Aichi, Japan

    M. Takagi

  2. Institute for Materials Research, Tohoku University, Katahira 2-1-1, 980, Aoba-ku, Sendai, Japan

    Y. Kawamura

  3. Department of Mechanical Engineering, Aichi Institute of Technology, Yachigusa, Yagusa-cho, 470-03, Toyota, Japan

    T. Imura

  4. Department of Materials Science and Engineering, Faculty of Engineering, Nagoya University, Furo-cho, Chikusa-ku, 464-01, Nagoya, Japan

    H. Saka

Authors
  1. M. Takagi
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  2. Y. Kawamura
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  3. T. Imura
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  4. H. Saka
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Takagi, M., Kawamura, Y., Imura, T. et al. Structures and mechanical properties of amorphous alloy compacts prepared in an inert atmosphere. J Mater Sci 27, 956–962 (1992). https://doi.org/10.1007/BF01197648

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  • DOI: https://doi.org/10.1007/BF01197648

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