Abstract
Orientation determination does not necessarily require complete knowledge of the local atomic arrangement in a crystalline phase. We present a method for microstructural phase discrimination and orientation analysis of phases for which there is only limited crystallographic information available. In this method, experimental Kikuchi diffraction patterns are utilized to generate a self-consistent master reference for use in the technique of Electron Backscatter Diffraction (EBSD). The experimentally derived master data serves as an application-specific reference in EBSD pattern matching approaches. As application examples, we map the locally varying orientations in samples of icosahedral quasicrystals observed in a Ti40Zr40Ni20 alloy, and we analyse AlNiCo decagonal quasicrystals.
Original language | English |
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Pages (from-to) | 376-385 |
Number of pages | 10 |
Journal | Acta Materialia |
Volume | 188 |
Early online date | 11 Feb 2020 |
DOIs | |
Publication status | Published - 15 Apr 2020 |
Keywords
- crystal orientation
- EBSD
- pattern matching
- quasicrystal