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    Transmission Electron Microscope Study of the Structures Produced During the First Stage of Tempering in a 1.40 Weight Per Cent Carbon Steel

    Published: 01 January 1966

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    The structure of a 1.40 weight per cent carbon steel during the first stage of tempering (up to 200 C) was studied by transmission electron microscopy. Distributions consisting of either randomly arranged spherical or aligned platelike carbide particles were observed after tempering at 150 C. The origin of both of these types of distributions can be explained by heterogeneous nucleation on and growth of carbide particles along the dislocation networks of the tempered martensite.


    electron microscopes, steels, carbides, tempering, carbon steels, microstructure

    Author Information:

    Jackson, M. R.
    Research assistant, Lehigh University, Bethlehem, Pa.

    Krauss, G.
    Assistant professorPersonal member ASTM, Lehigh University, Bethlehem, Pa.

    Committee/Subcommittee: E04.11

    DOI: 10.1520/STP46419S