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Orientation of Weak Grain Boundaries in Aluminum-Lithium Alloy 2090-T8E41

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Abstract

The aluminum-lithium alloy 2090-T8E41 undergoes delamination along certain high-angle boundaries parallel to the rolling plane when subjected to torsional loading. Weak boundaries were located by comparison of fracture surface replicas and thin foils in the electron microscope. Grain boundary orientation was determined from Kikuchi patterns obtained by convergent beam electron diffraction.

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References

  1. P. Heilmann, W.A.T. Clark and D.A. Rigney, Ultramicroscopy 9, 365 (1982).

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  2. A.K. Vasudévan and R.D. Doherty, Acta Metall. 35 (6), 1193 (1987).

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Authors and Affiliations

  1. Rockwell International Science Center, 1049 Camino Dos Rios, 91360, Thousand Oaks, CA, USA

    Roy Crooks & John R. Porter

Authors
  1. Roy Crooks
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  2. John R. Porter
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Crooks, R., Porter, J.R. Orientation of Weak Grain Boundaries in Aluminum-Lithium Alloy 2090-T8E41. MRS Online Proceedings Library 122, 425–427 (1988). https://doi.org/10.1557/PROC-122-425

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  • DOI: https://doi.org/10.1557/PROC-122-425

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