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Matrix strength evaluation of ultra-fine grained steel by nanoindentation

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Abstract

Nanoindentation was performed to evaluate the matrix strength of the ultra-fine grained steel produced by accumulative roll-bonding and subsequently annealed. The nanohardness, associated with the matrix strength, decreases with increasing annealing temperature. Because the matrix strength corresponds to the first term σ0 of the Hall–Petch relation, this result suggests that the σ0 might not be constant for these steels between various grain sizes. Therefore, it is suggested that the change of the macroscopic strength during annealing is dominated by not only the grain coarsening leading to a reduction of grain refinement strengthening, but also the softening of the matrix strength.

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References

  1. L.L. Shaw, J. Metals 52, 41 (2001).

    Google Scholar 

  2. N. Tsuji, Tetsu-to-Hagane 88, 359 (2002).

    Article  CAS  Google Scholar 

  3. N. Tsuji, Y. Ito, Y. Saito, and Y. Minamino, Scr. Mater. 47, 893 (2002).

    Article  CAS  Google Scholar 

  4. R.Z. Vakiev, F. Chmelik, F. Bordeaux, G. Kapelski, and B. Baudelet, Scr. Metall. Mater. 27, 855 (1992).

    Article  Google Scholar 

  5. Z. Horita, D.J. Smith, M. Furukawa, M. Nemoto, R.Z. Valiev, and T.G. Langdon, J. Mater. Res. 11, 1880 (1996).

    Article  CAS  Google Scholar 

  6. M. Murayama, Z. Horita, and K. Hono, Acta Mater. 49, 21 (2001).

    Article  CAS  Google Scholar 

  7. T. Ohmura, K. Tsuzaki, and S. Matsuoka, Scr. Mater. 45, 889 (2001).

    Article  CAS  Google Scholar 

  8. T. Ohmura, K. Tsuzaki, and S. Matsuoka, Philos. Mag. A 82, 1903 (2002).

    CAS  Google Scholar 

  9. T. Ohmura, T. Hara, and K. Tsuzaki, J. Mater. Res. 18, 1465 (2003).

    Article  CAS  Google Scholar 

  10. N. Tsuji, Y. Saito, H. Utsunomiya, and S. Tanigawa, Scr. Mater. 40, 795 (1999).

    Article  CAS  Google Scholar 

  11. N. Tsuji, R. Ueji, and Y. Minanino, Scr. Mater. 47, 69 (2002).

    Article  CAS  Google Scholar 

  12. W.C. Oliver and G.M. Pharr, J. Mater. Res. 7, 1564 (1992).

    Article  CAS  Google Scholar 

  13. M. Itokazu and Y. Murakami, Trans. Jpn. Soc. Mech. Eng. A59, 2560 (1993).

    Article  Google Scholar 

  14. A. Gouldstone, H-J. Koh, K-Y. Zeng, A.E. Giannakopoulos, and S. Suresh, Acta Mater. 48, 2277 (2000).

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. National Institute for Materials Science, 1-2-1 Sengen, Tsukuba, Ibaraki, 305-0047, Japan

    T. Ohmura & K. Tsuzaki

  2. Department of Adaptive Machine Systems, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka, 565-0871, Japan

    N. Tsuji & N. Kamikawa

Authors
  1. T. Ohmura
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  2. K. Tsuzaki
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  3. N. Tsuji
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  4. N. Kamikawa
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Ohmura, T., Tsuzaki, K., Tsuji, N. et al. Matrix strength evaluation of ultra-fine grained steel by nanoindentation. Journal of Materials Research 19, 347–350 (2004). https://doi.org/10.1557/jmr.2004.19.1.347

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  • DOI: https://doi.org/10.1557/jmr.2004.19.1.347

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