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Development of Fe−12%Cr mechanical-alloyed nano-sized ODS heat-resistant ferritic alloys

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Abstract

The development of mechanical alloying (MA)-oxide dispersion strengthened (ODS) heat-resistant ferritic alloys of Fe−12%Cr with W, Ti and Y203 additions were carried out. Fe−12%Cr alloys with 3%W, 0.4%Ti and 0.25% Y203 additions showed a much finer and more uniform dispersion of oxide particles among the alloy system studied. Nano-sized oxides dispersed in the alloys suppress the grain growth during annealing at a high temperature and resulted in the remarkable improvement of creep strength. The oxide phase was identified as a complex oxide type of Y−Ti−O.

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References

  1. 1.

    I. S. Kim, C. Y. Kang, T. Okuda, J. H. Sung, P. J. Maziasa, R. L. Klueh and K. Miyahara,Metals and Materials 6, 513 (2000).

  2. 2.

    I. S. Kim, J. D. Hunn, N. Hashimoto, D. L. Larson, P. J. Maziasz, K. Miyahara and E. H. Lee,J. Nuel. Mater. 280, 264 (2000).

  3. 3.

    D. J. Larson, P. J. Maziasz, I. S. Kim and K. Miyahara,Scripta metall. mater. 44, 359 (2001).

  4. 4.

    S. Yamashita, S. Watanabe, S. Ohnuki, H. Takahashi, N. Akasaka and S. Ukai,J. Nucl. Mater. 283, 647 (2000).

  5. 5.

    C. Y. Kang, M. Kazuya and D. S. Bae,J. Kor. Inst. Met. & Mater. 11, 1477 (1997).

  6. 6.

    I. S. Kim, B. Y. Choi, C. Y. Kang, H. R. Jung and K. Miyahara,J. Kor. Inst. Met. & Mater. 39, 983 (2001).

  7. 7.

    J. L. Laidler and J. W. Bennent,Nucl. Eng. Int. 25, 31 (1980).

  8. 8.

    T. Lechtenberg,J. Nuel. Mater. 133, 149 (1985).

  9. 9.

    T. Okuda,Tetsu-to-Hagane 83, 25 (1997).

  10. 10.

    IS. Kim, B. Y. Choi, C. Y. Kang, T. Okuda, P. H. Maziasz and K. Miyahara, ISH Int. to be submitted.

  11. 11.

    E. Orowan,Trans. Inst. Eng. Shipbuilding 11, 165 (1946).

  12. 12.

    D. J. Srolovitz, P. A. Perkovic-Luton and M. J. Luton,Phil. Magazine. A48, 795 (1983).

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Correspondence to Ick-Soo Kim.

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Kim, I., Choi, B. Development of Fe−12%Cr mechanical-alloyed nano-sized ODS heat-resistant ferritic alloys. Met. Mater. Int. 8, 265–270 (2002). https://doi.org/10.1007/BF03186095

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Keywords

  • heat-resistant ferritic alloys
  • mechanical alloying (MA)
  • oxide dispersion strengthened (ODS)
  • high temperature strength
  • creep
  • nano-sized oxides