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Microstructure and Mechanical Properties of Ti–Al–Ni–Cr–Co–Fe-Based High-Entropy Alloys

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Abstract

Four alloys with nominal compositions of TiAlNiCr, TiAlNiCrCo, TiAlNiCrFe and TiAlNiCrCoFe were synthesized through mechanical alloying followed by spark plasma sintering (SPS). After 8 h of milling, all the alloys developed a major parental BCC phase. SPS done on the alloys revealed that the BCC phase was retained after SPS. Sintering promoted the formation of one more BCC phase thus making the final microstructure comprised of two BCC phases. The phases were characterized using X-ray diffraction and scanning electron microscope. Backscattered electron images of the samples indicated that one BCC phase was rich in Ni and Al, whereas the second BCC phase was rich in Cr, Co and Fe. All the alloys showed good hardness and mechanical strength with values above 2000 MPa except TiAlNiCr.

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References

  1. Yeh J W, Chen S K, Lin S J, Gan J Y, Chin T S, Shun T T, Tsau C H, and Chang S Y, Adv Eng Mater 6 (2004) 299.

    Article  Google Scholar 

  2. Ng C, Guo S, Luan J, Shi S, and Liu C T, Intermetallics 31 (2012) 165.

    Article  Google Scholar 

  3. Shun T T, and Du Y C, J Alloys Compd 479 (2009) 157.

    Article  Google Scholar 

  4. Moravcik I, Cizek J, Zapletal J, Kovacova Z, Vesely J, Minarik P, Kitzmantel M, Neubauer E, and Dlouhy I, Mater Des 119 (2017) 141.

    Article  Google Scholar 

  5. Sriharitha R, Murty B S, and Kottada R S, J Alloys Compd 583 (2014) 419.

    Article  Google Scholar 

  6. Pauzi S S M, Darham W, Ramli R, Harun M K, and Talari M K, Trans Indian Inst Met 66 (2013) 305.

    Article  Google Scholar 

  7. Lee C F, and Shun T T, Mater Charact 114 (2016) 179.

    Article  Google Scholar 

  8. Li C, Li J C, Zhao M, and Jiang Q, J Alloys Compd 475 (2009) 752.

    Article  Google Scholar 

  9. Chen Z, Chen W, Wu B, Cao X, Liu L, and Fu Z, Mater Sci Eng A 648 (2015) 217.

    Article  Google Scholar 

  10. Jiang S, Lin Z, Xu H, and Sun Y, J Alloys Compd 741 (2018) 826.

    Article  Google Scholar 

  11. Miracle D B, and Senkov O N, Acta Mater 122 (2017) 448.

    Article  Google Scholar 

  12. Zhang K B, Fu Z Y, Zhang J Y, Wang W M, Lee S W, and Niihara K, IOP Conf Ser Mater Sci Eng 20 (2011) 12009.

    Google Scholar 

  13. Miedema A R, de Boer F R, and Boom R, Calphad 1 (1977) 341.

  14. Laboratoriurn N, and Van Amsterdam U, AITIOg B 81 (1981).

Download references

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Authors and Affiliations

  1. Department of Metallurgical and Materials Engineering, IIT Madras, Chennai, 600036, India

    R. Anand Sekhar & Srinivasa Rao Bakshi

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  1. R. Anand Sekhar
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  2. Srinivasa Rao Bakshi
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Correspondence to R. Anand Sekhar.

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Anand Sekhar, R., Bakshi, S.R. Microstructure and Mechanical Properties of Ti–Al–Ni–Cr–Co–Fe-Based High-Entropy Alloys. Trans Indian Inst Met 72, 1413–1416 (2019). https://doi.org/10.1007/s12666-019-01708-x

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  • DOI: https://doi.org/10.1007/s12666-019-01708-x

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