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Development of TiB2 reinforced in-situ Ti aluminide matrix composite through reaction synthesis

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Abstract

TiB2 reinforced in-situ titanium aluminide matrix composite was made through reaction synthesis process using high purity elemental powders of Ti, Al, Cr, Nb and B. XRD of the synthesized block showed presence of mainly Al3Ti and TiB2 phases. To obtain γ Ti aluminide based matrix, the material was homogenized in two phase region (α2+γ). Presence of γ phase matrix alongwith α2 was confirmed through XRD, SEM and TEM. Uniform distribution of TiB2 phase was confirmed through elemental mapping and by analyzing specimens of different locations. Differential scanning calorimetry of powder mixture showed presence of endothermic peak for Al melting and exothermic peak of Ti aluminide and TiB2 formation.

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Authors and Affiliations

  1. Materials and Mechanical Entity, Vikram Sarabhai Space Centre, ISRO, Trivandrum, 695 022, India

    R. K. Gupta, Bhanu Pant, P. Ramkumar & P. P. Sinha

  2. Dept. of Materials and Met. Engg., Indian Institute of Technology, Roorkee, Roorkee, 247 667, India

    Vijaya Agarwala

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  1. R. K. Gupta
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  2. Bhanu Pant
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  3. Vijaya Agarwala
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  4. P. Ramkumar
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  5. P. P. Sinha
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Correspondence to R. K. Gupta.

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Gupta, R.K., Pant, B., Agarwala, V. et al. Development of TiB2 reinforced in-situ Ti aluminide matrix composite through reaction synthesis. Trans Indian Inst Met 63, 715–718 (2010). https://doi.org/10.1007/s12666-010-0110-1

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  • DOI: https://doi.org/10.1007/s12666-010-0110-1

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