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The development of two texture variants and their effect on the mechanical behavior of a high strength P/M aluminum alloy, X7091

  • Mechanical Behavior
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Abstract

The influence of texture on the deformation behavior and monotonic and cyclic properties of two recrystallized P/MX7091-T651 plates was investigated. Thermal mechanical treatments were used to produced two different textures which varied in intensity by a factor of four. The two plates had similar grain and precipitate structures. The deformation behavior and mechanical properties were correlated with grain orientation and grain boundary misorientation. Differences in fracture surface roughness and crack deflection frequencies were observed for the two texture variants during fatigue crack propagation studies. Deformation behavior, crack closure, and crack deflection affected the fatigue crack growth rates. A small but measurable improvement in tensile strength, fatigue strength, and fatigue crack growth resistance was obtained in the sharply textured material when compared with the weakly textured counterpart.

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Authors and Affiliations

  1. Materials Research Laboratories, Industrial Technology Research Institute, Hsinchu, Taiwan

    Victor W. C. Kuo

  2. University of Virginia, 22901, Charlottesville, VA

    E. A. Starke (Earnest Oglesby Professor in the Department of Materials Science and Dean of the School of Engineering and Applied Science)

Authors
  1. Victor W. C. Kuo
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  2. E. A. Starke
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Kuo, V.W.C., Starke, E.A. The development of two texture variants and their effect on the mechanical behavior of a high strength P/M aluminum alloy, X7091. Metall Trans A 16, 1089–1103 (1985). https://doi.org/10.1007/BF02811678

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  • DOI: https://doi.org/10.1007/BF02811678

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