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Experimental and theoretical studies of the superposition of intergranular and macroscopic strains in Ni-based industrial alloys

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Abstract

Measurements of the strain response to applied stress in polycrystalline MONEL-400 by neutron diffraction are modeled with the elastoplastic self-consistent (EPSC) theory. The strains in the different crystallographic orientations of grains, which are generated in the tensile test experiments, are shown to be caused by the anisotropy of elastic and plastic deformation with respect to crystallographic orientation. On the basis of the description of the results in the theory, the origin of a number of anomalies of a general nature in measurements by both neutron and X-ray diffraction can be understood. The theory is used to calculate which crystallographic reflections are least sensitive to intergranular effects under uniaxial tension.

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Authors and Affiliations

  1. the Neutron Program for Materials Research, National Research Council of Canada, Chalk River Laboratories, K0J 1J0, Chalk River, ON, Canada

    T. M. Holden (Principal Research Officer)

  2. the Materials Science and Technology Division, Los Alamos National Laboratory, 87545, Los Alamos, NM

    C. N. Tomé (Member of the Technical Staff)

  3. the Fuel Channels Division, AECL, Chalk River Laboratories, K0J 1J0, Chalk River, ON, Canada

    R. A. Holt (Director)

Authors
  1. T. M. Holden
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  2. C. N. Tomé
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  3. R. A. Holt
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Holden, T.M., Tomé, C.N. & Holt, R.A. Experimental and theoretical studies of the superposition of intergranular and macroscopic strains in Ni-based industrial alloys. Metall Mater Trans A 29, 2967–2973 (1998). https://doi.org/10.1007/s11661-998-0204-0

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  • DOI: https://doi.org/10.1007/s11661-998-0204-0

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