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Large-Strain Softening of Aluminum in Shear at Elevated Temperature: Influence of Dislocation Climb

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Abstract

This communication complements an earlier publication in this journal by the authors describing the basis for large-strain softening in aluminum under pure shear at elevated temperatures. Earlier work by the authors and the materials community only considered changes in the dislocation glide stress with the evolving texture as an explanation for the softening. New analysis finds that changes in the dislocation climb stress with texture development can explain the softening trends.

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The authors are grateful for the support of the National Science Foundation under Grant No. DMR-1401194.

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Authors and Affiliations

  1. Aerospace and Mechanical Engineering Department, University of Southern California, Los Angeles, CA, 90089, USA

    M. E. Kassner & C. S. Campbell

  2. Chemical Engineering and Materials Science Department, University of Southern California, Los Angeles, CA, 90089, USA

    M. E. Kassner & R. Ermagan

Authors
  1. M. E. Kassner
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  2. C. S. Campbell
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  3. R. Ermagan
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Correspondence to M. E. Kassner.

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Manuscript submitted March 24, 2017.

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Kassner, M.E., Campbell, C.S. & Ermagan, R. Large-Strain Softening of Aluminum in Shear at Elevated Temperature: Influence of Dislocation Climb. Metall Mater Trans A 48, 3971–3974 (2017). https://doi.org/10.1007/s11661-017-4166-y

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