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High-temperature discontinuously reinforced aluminum

  • Aluminum Composite
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Abstract

High-temperature discontinuously reinforced aluminum (HTDRA) composites have been developed for elevated-temperature applications by incorporating SiC particulate reinforcement into a rapidly solidified, high-temperature Al-Fe-V-Si (alloy 8009) matrix. HTDRA combines the superior elevated-temperature strength, stability and corrosion resistance of the 8009 matrix with the excellent specific stiffness and abrasion resistance of the discontinuous SiC particulate reinforcement. On a specific stiffness basis, HTDRA is competitive with Ti-6-Al-4V and 17-4 PH stainless steel to temperatures approaching 480°C. Potential aerospace applications being considered for HTDRA include aircraft wing skins, missile bodies, and miscellaneous engine, spacecraft and hypersonic vehicle components.

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Authors and Affiliations

  1. Allied-Signal, USA

    M. S. Zedalis Ph.D. (senior research metallurgist in the Metals and Ceramics research group), J. D. Bryant Ph.D. (research metallurgist in the Metals and Ceramics research group), P. S. Gilman Ph.D. (manager-technology in the High Performance Alloy Products group) & S. K. Das Ph.D. (manager of the Alloys Research Group)

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  1. M. S. Zedalis Ph.D.
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  2. J. D. Bryant Ph.D.
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  3. P. S. Gilman Ph.D.
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  4. S. K. Das Ph.D.
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Zedalis, M.S., Bryant, J.D., Gilman, P.S. et al. High-temperature discontinuously reinforced aluminum. JOM 43, 29–31 (1991). https://doi.org/10.1007/BF03221100

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