EBSD orientation analysis based on experimental Kikuchi reference patterns. (15th April 2020)

• Record Type: Journal Article
• Authors: Winkelmann, Aimo; Cios, Grzegorz; Tokarski, Tomasz; Nolze, Gert; Hielscher, Ralf; Kozieł, Tomasz
• Is Part Of: Acta materialia. Volume 188(2020)
• Page Start: 376
• Page End: 385
• Publication Date: 2020-04-15
• Subjects: EBSD -- Quasicrystal -- Crystal orientation -- Pattern matching; Materials -- Periodicals; Materials science -- Periodicals; Materials -- Mechanical properties -- Periodicals; Metallurgy -- Periodicals; Chemistry, Inorganic -- Periodicals; 620.112
• DOI: 10.1016/j.actamat.2020.01.053
• Languages: English
• ISSNs: 1359-6454

Abstract

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. Graphical abstract: