The weighted Burgers vector: A new quantity for constraining dislocation densities and types using electron backscatter diffraction on 2D sections through crystalline materials

Journal of Microscopy

Volumn 233, Issue 3, 2009, Pages 482-494

  Wheeler, J ^a   Mariani, E ^a   Piazolo, S ^b   Prior, D J ^a   Trimby, P ^c   Drury, M R ^d  

^a UNIVERSITY OF LIVERPOOL   (United Kingdom)

^b STOCKHOLM UNIVERSITY   (Sweden)

^c Box 1097   (Sweden)

^d UTRECHT UNIVERSITY   (Netherlands)

Author keywords

Burgers vector; Dislocation density; Electron backscatter diffraction; Geometrically necessary dislocation; Misorientation; Subgrain wall

Indexed keywords

BACKSCATTERING; CRYSTAL ORIENTATION; CRYSTALLINE MATERIALS; ELECTRON DIFFRACTION; TENSORS; VECTORS;

BURGER VECTORS; DISLOCATION DENSITY TENSORS; DISLOCATIONS DENSITIES; ELECTRON BACK SCATTER DIFFRACTION; ELECTRON BACKSCATTER DIFFRACTION; GEOMETRICALLY NECESSARY DISLOCATIONS; MISORIENTATIONS; ORIENTATION GRADIENTS; SUBGRAIN WALL; SUBGRAINS;

STRAIN;

CRYSTALLIN;

ARTICLE; CALCULATION; DENSITY GRADIENT; ELECTRON BACKSCATTER DIFFRACTION; ELECTRON DIFFRACTION; GEOMETRY; MATHEMATICAL MODEL; PRIORITY JOURNAL; STRUCTURE ANALYSIS; WEIGHTED BURGERS VECTOR;

EID: 61449265082     PISSN: 00222720     EISSN: 13652818     Source Type: Journal    
DOI: 10.1111/j.1365-2818.2009.03136.x     Document Type: Article

References (27)

1. Adams, B.L. (1997) Orientation imaging microscopy: emerging and future applications. Ultramicroscopy 67, 11 17.
2. Ashby, M.F. (1970) Deformation of plastically non-homogeneous materials. Philos. Mag. 21, 399 424.
3. Bunge, H.J. (1982) Texture Analysis in Materials Science. Butterworths (Reprint: Cuvillier Verlag, Göttingen 1993. London.
4. Drury, M.R., Humphreys, F.J. & White, S.H. (1985) Large strain deformation studies using polycrystalline magnesium as a rock analogue. Part II. Dynamic recrystallisation mechanisms at high temperatures. Phys. Earth Planetary Interiors 40, 208 222.
5. El-Dasher, B.S., Adams, B.L. & Rollett, A.D. (2003) Viewpoint: experimental recovery of geometrically necessary dislocation density in polycrystals. Scr. Mater. 48, 141 145.
6. Field, D.P., Trivedi, P.B., Wright, S.I. & Kumar, M. (2005) Analysis of local orientation gradients in deformed single crystals. Ultramicroscopy 103, 33 39.
7. Flynn, P.W., Mote, J. & Dorn, J.E. (1961) On the thermally activated mechanism of prismatic slip in magnesium single crystals. Trans. Metall. Soc. Aime 221, 1148 1154.
8. Hirth, J.P. & Lothe, J. (1982) Theory of Dislocations. Krieger Publishing Company, Malabar, FL.
9. Humphreys, F.J. (2001) Review - Grain and subgrain characterisation by electron backscatter diffraction. J. Mater. Sci. 36, 3833 3854.
10. Humphreys, F.J., Bate, P.S. & Hurley, P.J. (2001) Orientation averaging of electron backscattered diffraction data. J. Microsc. 201, 50 58.
11. Ion, S.E., Humphreys, F.J. & White, S.H. (1982) Dynamic recrystallization and the development of microstructure during the high-temperature deformation of magnesium. Acta Metall. 30, 1909 1919.
12. Koike, J., Kobayashi, T., Mukai, T., Watanabe, H., Suzuki, M., Maruyama, K. & Higashi, K. (2003) The activity of non-basal slip systems and dynamic recovery at room temperature in fine-grained AZ31B magnesium alloys. Acta Mater. 51, 2055 2065.
13. Kröner, E. (1981) Continuum theory of defects. Physics of Defects (ed. by R. Balian, M. Kleman & J.P. Poirier). North-Holland, Amsterdam.
14. Lloyd, G.E., Farmer, A.B. & Mainprice, D. (1997) Misorientation analysis and the formation and orientation of subgrain and grain boundaries. Tectonophysics 279, 55 78.
15. Mariani, E., Mecklenburgh, J., Wheeler, J., Prior, D.J. & Heidelbach, F. (2009) Microstructure evolution and recrystallization during creep of MgO single crystals. Acta Materialia. In press, doi :.
16. Nye, J.F. (1953) Some geometrical relations in dislocated crystals. Acta Metall. 1, 153 162.
17. Obara, T., Yoshinga, H. & Morozumi, S. (1973) {11bar22} slip system in magnesium. Acta Metall. 21, 845 853.
18. Pantleon, W. (2008) Resolving the geometrically necessary dislocation content by conventional electron backscattering diffraction. Scr. Mater. 58, 994 997.
19. Piazolo, S., Drury, M. & Prior, D. (2004) Effect of temperature on the development of microstructures during and after deformation: a case study involving EBSD analysis and in-situ heating experiments. Proceedings of the CHANNEL Users Meeting 2004, pp. 50 55. KHL Technology, Aarhus, Denmark.
20. Prior, D.J., Boyle, A.P., Brenker, F., et al 1999) The application of electron backscatter diffraction and orientation contrast imaging in the SEM to textural problems in rocks. Am. Mineral. 84, 1741 1759.
21. Prior, D.J., Wheeler, J., Peruzzo, L., Spiess, R. & Storey, C. (2002) Some garnet microstructures: an illustration of the potential of orientation maps and misorientation analysis in microstructural studies. J. Struct. Geol. 24, 999 1011.
22. Sheely, W.F. & Nash, R.R. (1960) Mechanical properties of magnesium monocrystals. Trans. Am. Inst. Mining Metall. Eng. 218, 416 423.
23. Sun, S., Adams, B.L. & King, W.E. (2000) Observations of lattice curvature near the interface of a deformed aluminium bicrystal. Phil. Mag. A 80, 9 25.
24. Sutton, A.P. & Balluffi, R.W. (1995) Interfaces in Crystalline Materials. Clarendon Press, Oxford.
25. Wheeler, J., Jiang, Z., Prior, D.J., Tullis, J., Drury, M. & Trimby, P.J. (2003) From geometry to dynamics of microstructure: using boundary lengths to quantify boundary misorientations and anisotropy. Tectonophysics 376, 19 35.
26. Wilkinson, A.J., Meaden, G. & Dingley, D.J. (2006) High resolution mapping of strains and rotations using electron backscatter diffraction. Mater. Sci. Technol. 22, 1271 1278.
27. Wright, S.I., Field, D.P. & Dingley, D.J. (2000) Advanced software capabilities for automated EBSD. Electron Backscatter Diffraction in Materials Science (ed. by A.J. Schwartz, M. Kumar & B.L. Adams). pp. 141 152, Kluwer Academic/Plenum Publishers.