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Lattice orientation relationship between the M2C carbide and the ferrite matrix in the M50NiL bearing steel

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Abstract

The morphology and crystallography of M2C carbide precipitates in the ferrite matrix in M50NiL alloy were investigated using transmission electron microscopy (TEM). A new orientation relationship (OR), (010)α // \((01\bar 11)_C \) and [100]α // \((2\overline {11} 0)_C \) between the carbide and the matrix was determined. The observed OR leads to a small lattice misfit on the matching planes between the two phases. Results of TEM studies of the particle morphology and electron diffraction of the carbide are consistent with the proposed OR.

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Authors and Affiliations

  1. Materials and Processing, United Technologies Research Center, 06108, East Hartford, CT

    S. G. Song (Staff Scientist) & E. Y. Sun (Staff Engineer)

  2. the Mechanical Systems Product and Module Center, Pratt & Whitney, 06108, East Hartford, CT

    H. Du (Staff Engineer)

Authors
  1. S. G. Song
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  2. H. Du
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  3. E. Y. Sun
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Song, S.G., Du, H. & Sun, E.Y. Lattice orientation relationship between the M2C carbide and the ferrite matrix in the M50NiL bearing steel. Metall Mater Trans A 33, 1963–1969 (2002). https://doi.org/10.1007/s11661-002-0029-1

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  • DOI: https://doi.org/10.1007/s11661-002-0029-1

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