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Electron microscopy investigations of ferrous martensites

  • Invited Papers from Symposium on the Formation of Martensite in Iron Alloys
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Abstract

This paper is concerned with electron metallography of bcc or bet ferrous martensite in which particular attention is paid to, the characterization of substructures., The transformation substructure is complex and new results are reported on multiple {112} twinning. The factors controlling the martensitic substructure are evaluated and it is concluded that the strength and deformation, characteristics of martensite are the most important in determining whether the transformation deformation occurs by slip or twinning (or both). An appraisal is given ofin situ transformations in the electron microscope particularly with regard to the nucleation problem and investigations of the interfacial structures. The potential role of high voltage electron microscopy is also discussed and some recommendations are offered for future investigations.

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Authors and Affiliations

  1. Department of Materials Science and Engineering, University of California, Berkeley, Calif.

    Gareth Thomas (Professor of Metallurgy)

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  1. Gareth Thomas
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Thomas, G. Electron microscopy investigations of ferrous martensites. Metall Trans 2, 2373–2385 (1971). https://doi.org/10.1007/BF02814875

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