Correlation of bonding of grain boundary and fracture mode with local electronic structure in steels by electron energy loss spectroscopy

Article English OPEN
Zhang, X. ; Yang, W. G. ; Zhang, L. N. ; Qi, J. J. ; Yuan, J. (2007)

Electron energy loss spectroscopy (EELS) was used to study bonding of grain boundaries (GBs) in various types of commercial steels. It is found that if the GB has a higher occupancy of 3d states of iron than that of the grain, the sample tends to fracture intergranularly. Otherwise if the GB has a lower occupancy of 3d state of iron than the grain, the sample would have a strong GB bonding and tends to fracture transgranularly. It is proposed that EELS can estimate the GB cohesion and its impact on the fracture mode of commercial steels. (c) 2007 American Institute of Physics.
  • References (18)
    18 references, page 1 of 2

    1C. J. McMahon and V. Vitek, Acta Metall. 27, 507 1979 .

    2M. L. Jokl, Jun Kameda, C. J. McMahon, and V. Vitek, Met. Sci. 14, 375 1980 .

    3D. Y. Lee, E. V. Barrera, J. P. Stark, and H. L. Marcus, Metall. Trans. A 15A, 1415 1984 .

    4M. L. Jokl, V. Vitek, and C. J. McMahon, Acta Metall. 28, 1479 1980 .

    5R. F. Egerton, Electron Energy-Loss Spectroscopy in the Electron Microscope, 2nd ed. Plenum, New York, 1996 , Chap. 5, 371.

    6D. A. Muller, Y. Tzou, R. Raj, and J. Silcox, Nature London 66, 725 1993 .

    7D. H. Pearson, C. C. Ahn, and B. Fultz, Phys. Rev. B 47, 8471 1993 .

    8D. H. Pearson, C. C. Ahn, and B. Fultz, Phys. Rev. B 50, 12969 1994 .

    9D. A. Muller, S. Subramanian, P. E. Batson, S. L. Sass, and J. Silcox, Phys. Rev. Lett. 75, 4744 1995 .

    10D. A. Muller, S. Subramanian, P. E. Batson, J. Silcox, and S. L. Sass, Acta Mater. 44, 1637 1996 .

  • Metrics
    0
    views in OpenAIRE
    0
    views in local repository
    27
    downloads in local repository

    The information is available from the following content providers:

    From Number Of Views Number Of Downloads
    White Rose Research Online - IRUS-UK 0 27
Share - Bookmark