Materials Transactions Online

Materials Transactions, Vol.46 No.05 (2005) pp.1079-1082
© 2005 The Japan Institute of Metals

Electron Diffraction Study on Fe--Zn Γ intermetallic Phase of a Galvannealed IF Steel Sheet

Jinshan Yu1, Junliang Liu2, Jinxu Zhang1 and Jiansheng Wu1

1School of Material Science and Engineering, Shanghai Jiaotong University, Shanghai, China
2Physical Testing Section of Testing Center, Baosteel Groups, Shanghai, China

In order to investigate the structure of Fe--Zn Γ phase in a commercial galvannealed IF steel sheet, the electron diffraction and composition of Γ phase in a commercial galvannealed IF steel sheet were studied by transmission electron microscope (TEM) and X-ray energy dispersive spectroscopy (EDX). The cross-sectional TEM specimen was prepared using focused ion beam (FIB) technique which was also introduced briefly. The results show that there exist superlattice reflections in the selected area diffraction patterns (SADPs) of Γ phase which indicate that the Γ phase is a kind of ordered intermetallic compound. The results of computer simulation of electron diffraction patterns based on the single crystals X-ray diffraction of previous researchers give a advice to the atomic coordinates of Γ phase in a commercial galvannealed IF steel sheets.

(Received 2004/12/13; Accepted 2005/3/25; Published 2005/5/15)

Keywords: Γ phase, Focused ion beam, Superlattice reflections, Atomic coordinates

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REFERENCES

  1. A. R. Marder: Prog. Mater. Sci. 45 (2000) 191--271.
  2. H. E. Townsend and J. C. Zoccola: Mater. Perform. 18 (1979) 13--20.
  3. P. J. Gellings, G. Gierman, D. Koster and J. Kuit: Z. Metallkde. 71 (1980) 70--75.
  4. A. Johansson, H. Ljung and H. Westman: Acta Chem. Scand. 22 (1968) 2743--2753.
  5. J. K. Brandon, R. Y. Brizard, P. C. Chieh, R. K. Mcmillan and W. B. Pearson: Acta Crystallogr. B30 (1974) 1412--1417.
  6. H. E. Clande Belin and C. H. Renaud Belin: J. Solid State Chem. 151 (2000) 85--95.
  7. L. A. Giannuzzi and F. A. Stevie: Micron 30 (1999) 197--204.
  8. M. H. Hong and H. Saka: Scr. Mater. 36 (1997) 1423--1429.
  9. T. Kato, K. Nunome, K. Kaneko and H. Saka: Acta Mater. 48 (2000) 2257--2262.
  10. T. Kato, M. H. Hong, K. Nunome, K. Sasaki, K. Kuroda and H. Saka: Thin Solid Flims 319 (1998) 132--139.

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