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The average volume of martensite plates during transformation

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Abstract

Using quantitative metallography the average volumes of the martensite plates have been measured in Fe-23.8Ni-0.42C and Fe-28.5Ni-0.4C after varying degrees of transformation. Over a range of volume fraction transformed from 0.07 to 0.55 (the highest volume fraction sample upon which measurements could be made), the average volume of the martensite plates is constant. Fisher’s equation, which predicts a decrease in the average volume by two orders of magnitude over the experimental range of transformation, is not substantiated by the present experiments chiefly because the influence of autocatalysis is neglected in its derivation.

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Authors and Affiliations

  1. Product Development Engineering, Ford Motor Co., Dearborn, USA

    D. G. McMurtrie

  2. Scientific Research Staff, Ford Motor Co., Dearborn, USA

    C. L. Magee

Authors
  1. D. G. McMurtrie
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  2. C. L. Magee
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Additional information

D. G. McMURTRIE, formerly Student, University of Michigan, Ann Arbor, Mich, and Summer Employee, Scientific Research Staff, Ford Motor Co., Dearborn, Mich.

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McMurtrie, D.G., Magee, C.L. The average volume of martensite plates during transformation. Metall Trans 1, 3185–3191 (1970). https://doi.org/10.1007/BF03038436

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  • DOI: https://doi.org/10.1007/BF03038436

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