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Fine structure in quenched Fe-Al-C steels

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Abstract

The origin of “extra” spots in electron diffraction patterns taken from retained austenite and martensite in Fe-7 pct Al-2 pct C has been investigated. The present interpretation differs from that of previous investigators. It is concluded that a high density of fine carbide precipitates 50Å in diameter is responsible for the extra reflections. The precipitates have the perovskite structure and grow epitaxially in the austenite during quenching. When martensite forms at a lower temperature, the precipitates are transformedin situ.

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Authors and Affiliations

  1. Department of Metallurgy and Mining Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois

    R. Oshima & CM. Wayman

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  1. R. Oshima
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  2. CM. Wayman
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Oshima, R., Wayman, C. Fine structure in quenched Fe-Al-C steels. Metall Trans 3, 2163–2169 (1972). https://doi.org/10.1007/BF02643228

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  • DOI: https://doi.org/10.1007/BF02643228

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