Hostname: page-component-586b7cd67f-t8hqh Total loading time: 0 Render date: 2024-11-25T15:51:52.853Z Has data issue: false hasContentIssue false
  • English
  • Français

Phase Transformation Crystallography of Lath Martensite

Published online by Cambridge University Press:  26 February 2011

Xiao Ma  and
R.C. Pond
Xiao Ma
Affiliation:
[email protected], The University of Liverpool, Department of Engineering, Brownlow Hill, Liverpool, L69 3GH, United Kingdom
R.C. Pond
Affiliation:
[email protected], The University of Liverpool, Department of Engineering, Brownlow Hill, Liverpool, L69 3GH, United Kingdom
Get access

Abstract

Our current understanding of martensitic transformations has been based on the Phenomenological Theory of Martensite Crystallography developed in the 1950s. Recently, a Topological Model of martensitic transformations has been presented wherein the habit plane is a semi-coherent structure, and the transformation mechanism is shown explicitly to be diffusionless. This approach is used here to model phase transformation crystallography of lath martensite in ferrous alloys. A range of network geometries is predicted corresponding to orientation relationships varying from Nishiyama-Wasserman to Kurdjumov-Sachs. Experimental observations from the literature of the dislocation and disconnection arrays, habit plane and orientation relationship are in good agreement with the model.

Keywords

phase transformationmicrostructuretransmission electron microscopy (TEM)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 979: Symposium HH – Thermodynamics and Kinetics of Phase Transformations in Inorganic Materials , 2006 , 0979-HH07-03
Copyright
Copyright © Materials Research Society 2007

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Wechsler, M.S., Lieberman, D.S., Read, T.A., Trans AIME. 197 (1953) 1503.Google Scholar
2. Bowles, J.S. and MacKenzie, J.K., Acta Metall. 2 (1954) 129, 138, 224.Google Scholar
3. Pond, R.C., Celotto, S. and Hirth, J.P., Acta Mater. 51 (2003) 5385.Google Scholar
4. Pond, R.C., Hirth, J.P., Ma, X. and Chai, Y.W., Topological Modelling of Martensitic Transformations, in: Dislocations in Solids, ed. Nabarro, F.R.N. and Hirth, J.P., (North-Holland, Amsterdam, in press)Google Scholar
5. Hirth, J.P., J. Phys. Chem. Sol. 55 (1994) 985.Google Scholar
6. Pond, R.C. and Celotto, S., Int. Mat. Revs. 48 (2003) 225.Google Scholar
7. Pond, R.C., Line defects in interfaces, in: Dislocations in Solids, vol. 8, ed. Nabarro, F.R.N., (North-Holland, Amsterdam, 1989) p.1.Google Scholar
8. Nishiyama, Z., Sci, Rep. Tohoku Univ., Vol 23, 1934, p. 637.Google Scholar
9. Wasserman, G., Mit. Kaiser-Wilhelm Inst. Eisenforsch., Vol 17, 1935, p. 149.Google Scholar
10. Pond, R.C., Serra, A. and Bacon, D.J., Acta Mater. 47 (1999) 1441.Google Scholar
11. Kurdjumov, G.V. and Sachs, G., Z. Phys., Vol 64, 1930, p. 325.Google Scholar
12. Sandvik, B.P.J. and Wayman, C.M., Metall. Trans. 14A (1983) 835.Google Scholar
13. Matthews, J.W., Phil. Mag. 29 (1974) 797.Google Scholar
14. Rigsbee, J.M. and Aaronson, H.I., Acta Metall. 27 (1979) 365.Google Scholar
15. Moritani, T., Miyajima, N., Furuhara, T. and Maki, T., Scripta Mater. 47 (2002) 193.Google Scholar