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Elevated temperature tensile properties and failure of a copper-chromium in situ composite

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Abstract

A Cu-10 vol% Cr in situ composite was produced by melt processing and deformed by swaging to form rods with a total deformation true strain of 3.15. Scanning electron microscopy showed that the composite microstructure consisted of Cr fibres aligned with their long axes parallel to the rod axis. X-ray diffraction indicated that the Cr fibres had a strong <110> fibre texture. The mechanical properties of the composite were measured by tensile testing over the temperature range −70 to 600°C. Examination of fibre fracture and fibre-matrix debonding at and near the tensile test fracture surfaces indicated that a transition from localised to global damage occurred between 300 and 400°C.

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Authors and Affiliations

  1. Department of Engineering, University of Leicester, University Road, Leicester, LE1 7RH, UK

    K. L. Lee & A. F. Whitehouse

  2. Materials Science and Engineering Department, Iowa State University, Ames, IA, 50011, USA

    A. M. Russell & K. Wongpreedee

  3. Department of Metallurgical Engineering, Chungnam National University, Taedok Science Town, Taejon, 305-764, Korea

    S. I. Hong

  4. Manchester Materials Science Centre, Grosvenor St., Manchester, M1 7HS, UK

    P. J. Withers

Authors
  1. K. L. Lee
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  2. A. F. Whitehouse
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  3. A. M. Russell
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  4. K. Wongpreedee
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  5. S. I. Hong
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  6. P. J. Withers
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Correspondence to K. L. Lee.

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Lee, K.L., Whitehouse, A.F., Russell, A.M. et al. Elevated temperature tensile properties and failure of a copper-chromium in situ composite. Journal of Materials Science 38, 3437–3447 (2003). https://doi.org/10.1023/A:1025196700785

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