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Fabrication of multilayered titanium aluminide sheets by self-propagating high-temperature synthesis reaction using hot rolling and heat treatment

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Abstract

This study is concerned with the fabrication of multilayered and bulk Ti aluminide sheets by self-propagating high-temperature synthesis (SHS) reaction using hot rolling and heat treatment. A multilayered Ti/Al sheet was prepared by stacking thin Ti and Al sheets alternatively. When this sheet was hot-rolled and heat-treated at 1000°C, a multilayered sheet composed of Ti3Al and TiAl was made through the process of formation and growth of intermetallic phases at Ti/Al interfaces and porosity reduction. A bulk Ti aluminide sheet having a lamellar structure of TiAl and Ti3Al was also fabricated successfully by heat treatment at 1400°C.

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Authors and Affiliations

  1. Center for Advanced Aerospace Materials, Pohang University of Science and Technology, Pohang, 790-784, Korea

    Jinkeun Oh, Sunghak Lee & Nack J. Kim

  2. Memory R&D Division, Hynix Semiconductor Inc., Ichon, 467-860, Korea

    Sung Gyu Pyo

Authors
  1. Jinkeun Oh
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  2. Sung Gyu Pyo
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  3. Sunghak Lee
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  4. Nack J. Kim
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Oh, J., Pyo, S.G., Lee, S. et al. Fabrication of multilayered titanium aluminide sheets by self-propagating high-temperature synthesis reaction using hot rolling and heat treatment. Journal of Materials Science 38, 3647–3651 (2003). https://doi.org/10.1023/A:1025637600400

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