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Tytuł artykułu

Grain volume distribution in ultrafine-grained iron produced by SPD.

Autorzy
Identyfikatory
Warianty tytułu
Konferencja
5th Polish-Japanese Symposium on Advanced Methods of Materials Characterization, Niedzica, 28.08-2.09.2004
Języki publikacji
EN
Abstrakty
EN
High purity iron samples were torsion strained and subsequently annealed. The 2-D microstructure images were quantitatively analysed. The results were used as an input to two stereological methods for spatial (3-D) grain size distribution reconstruction. The study showed that pure iron samples SPD processed and annealed for a short time could be successfully characterized by a log-normal distribution of 3-D grain size. The modeling method showed a significantly better fit in terms of chi2 values than Scheil-Schwartz-Saltykov method. Having in mind, that this method is less prone to error propagation and allows for flexibility in choosing grain shapes (including for instance non-equiaxial grains), it seems to be better suited for the needs of 3-D grain size description in ultrafine-grained materials.
Rocznik
Strony
31--35
Opis fizyczny
Bibliogr. 11 poz., rys.
Twórcy
autor
  • Faculty of Material Science and Engineering, Warsaw University of Technology, Wołoska 141, 02-507 Warsaw, Poland
Bibliografia
  • [1] R.Z. Va1iev, I.V. Alexandrov, R.K. Is1amga1iev, Nanocrystalline Materials: Science and Technology. NATO ASI. Edited by G.M. Chow and N.I. Noskova, Kluwer Publ. (1998) pp. 121-142.
  • [2] V.M. Segal, Mat. Sci. Eng. A, 238, 331 (2002).
  • [3] R.Z. Valiev, R.K. lslamgaliev, I. V. Alexandrov, Prog. Mater. Sci., 45, 103 (2000).
  • [4] R.Z. Va1iev, Mater Sci. Eng. A, 234-236, 59 (1998).
  • [5] J.J. Bucki, Т. Płociński, N. Amirkhanov, Proceedings of Xth Conf. on Electron Microscopy of Solids, Warsaw-Serock, Poland, September 99, (1999), pp. 437-440.
  • [6] A. Tsсhоpe, R. Вiгringeг, H. G1eiter, J. Appl. Phys. 71, 5391 (1992).
  • [7] J. J. Bucki, К J. Kurzydłowski, Proceedings of First Forum of Young European Researchers, Liege, Belgium, July 93, (1993), pp. 37-42.
  • [8] E.E. Underwood, Quantitative stereology, Addison Wesley, Reading, MA (1970).
  • [9] K.J. Kurzydłowski, В. Ralph, The Quantitative Description of the Microstructure of Materials. CRC Press Inc., Boca Raton, (1995), pp. 1-418.
  • [10] J.J. Bucki, K.J. Kurzydłowski, Acta Stereol., 13/2, 323 (1994).
  • [11] J.J. Bucki, K.J. Kurzydłowski, Scripta Met., 28, 689 (1993).
Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BOS4-0010-0039
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