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Formation of intermetallic phases during mechanical alloying and annealing of Cr + 20 wt % al mixtures

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Abstract

We have studied phase-formation processes in mixtures of Cr and Al (20 wt %) powders in the course of mechanical alloying (MA) and the phase transformations of the samples during subsequent annealing at temperatures of up to 800°C. The resultant x-ray amorphous intermetallic phases were identified by a differential dissolution method, which allows one to follow the formation of x-ray amorphous and partially crystallized phases. During MA of Cr + Al mixtures, the first to form is x-ray amorphous Cr4Al, which then converts to partially crystallized Cr2Al through reaction with aluminum. The peritectoid decomposition of Cr4Al during heating of the MA samples is accompanied by heat release at 330–350°C. Heating to 420°C leads to the formation of Cr5Al8. At 800°C, Cr5Al8 reacts with Cr to form Cr2Al.

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References

  1. Massalski, T.B., Binary Alloy Phase Diagrams, Materials Park: ASM International, 1990, 2nd ed., vol. 1, pp. 138–140.

    Google Scholar 

  2. Neto, J.G.C., Gama, S., and Ribeiro, C.A., Experimental Study of the Al-Cr Equilibrium Diagram, J. Alloys Compd., 1992, vol. 182, no. 2, pp. 271–280.

    Article  Google Scholar 

  3. Bradley, A.J. and Lu, S.S., An X-ray Study of the Chromium-Aluminium Equilibrium Diagram, J. Inst. Met., 1937, vol. 69, pp. 319–337.

    Google Scholar 

  4. Vol, A.E., Stroenie i svoistva dvoinykh metallicheskikh sistem (Structure and Properties of Binary Metallic Systems), Moscow: Fizmatgiz, 1959.

    Google Scholar 

  5. Suryanarayana, C., Mechanical Alloying and Milling, Prog. Mater. Sci., 2001, vol. 46, pp. 1–184.

    Article  CAS  Google Scholar 

  6. Qi, B.S., Wang, C.G., Yaw, X., and Peng, Q.F., Experimental Research on Cr-Al Mixed Powders by Mechanical Alloying, Acta Metall. Sin. (Eng. Lett.), 1999, vol. 12, no. 4, pp. 607–610.

    CAS  Google Scholar 

  7. Malakhov, V.V., Stoichiography As Applied to Studying Composition and Real Structure of Catalysts, J. Mol. Catal. A: Chem., 2000, vol. 158, no. 1, pp. 143–148.

    Article  CAS  Google Scholar 

  8. Golubkova, G.V., Lomovsky, O.I., Vlasov, A.A., et al., Studies of X-ray Amorphous Phase in Mechanochemical Synthesis of Iron Silicides from Elements, J. Alloys Compd., 2000, vol. 307, pp. 131–136.

    Article  CAS  Google Scholar 

  9. Hellstern, E. and Schultz, L., Glass Forming Ability in Mechanically Alloyed Fe-Zr, Appl. Phys. Lett., 1986, vol. 49, pp. 1163–1165.

    Article  CAS  Google Scholar 

  10. Golubkova, G.V., Lomovsky, O.I., Kwon, Y.S., et al., Formation of Nanocrystalline Structures in a Co-Al System by Mechanical Alloying and Leaching, J. Alloys Compd., 2003, vol. 351, pp. 101–105.

    Article  CAS  Google Scholar 

  11. Smithells Metals Reference Book, Brandes, E.A., and Brook, G.B., Eds., New York: Elsevier, 1998, 7th ed.

    Google Scholar 

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Authors and Affiliations

  1. Research Center for Machine Parts and Materials Processing, University of Ulsan, Ulsan, 680-749, Korea

    J. S. Kim & Y. S. Kwon

  2. Institute of Solid-State Chemistry and Mechanochemistry, Siberian Division, Russian Academy of Sciences, ul. Kutateladze 18, Novosibirsk, 630128, Russia

    G. V. Golubkova, O. I. Lomovsky & D. V. Dudina

  3. Boreskov Institute of Catalysis, Siberian Division, Russian Academy of Sciences, pr. Akademika Lavrent’eva 5, Novosibirsk, 630090, Russia

    L. S. Davlitova, V. V. Malakhov, S. F. Tikhov, V. V. Usol’tsev & V. A. Sadykov

Authors
  1. J. S. Kim
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  2. Y. S. Kwon
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  3. G. V. Golubkova
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  4. O. I. Lomovsky
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  5. D. V. Dudina
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  6. L. S. Davlitova
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  7. V. V. Malakhov
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  8. S. F. Tikhov
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  9. V. V. Usol’tsev
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  10. V. A. Sadykov
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Corresponding author

Correspondence to O. I. Lomovsky.

Additional information

Original Russian Text © J.S. Kim, Y.S. Kwon, G.V. Golubkova, O.I. Lomovsky, D.V. Dudina, L.S. Davlitova, V.V. Malakhov, S.F. Tikhov, V.V. Usol’tsev, V.A. Sadykov, 2008, published in Neorganicheskie Materialy, 2008, Vol. 44, No. 6, pp. 677–681.

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Kim, J.S., Kwon, Y.S., Golubkova, G.V. et al. Formation of intermetallic phases during mechanical alloying and annealing of Cr + 20 wt % al mixtures. Inorg Mater 44, 587–591 (2008). https://doi.org/10.1134/S0020168508060083

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  • DOI: https://doi.org/10.1134/S0020168508060083

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