Abbasi, Majid Kim, Dong-Ik Nelson, Tracy W. Abbasi, Mehrdad 2024-01-20T09:02:30Z 2024-01-20T09:02:30Z 2021-09-02 2014-09 1044-5803 https://pubs.kist.re.kr/handle/201004/126415 Electron backscattered diffraction has provided a quantitative tool to study micro/nanostructures in large scales. A recent application of electron backscattered diffraction is the reconstruction of pre-transformed phases in polymorphic systems, especially when there is no retained pre-transformed phase at room temperature. This capability has been demonstrated by various researchers utilizing different approaches towards grain structure and orientation recovery. However, parameters affecting reconstruction have not been investigated systematically. Factors such as post-transformed microstructures (morphology and crystallography), lattice strain (deformation), pattern and sample quality are among the affecting factors. Two-dimensional datasets of different steels have been reconstructed along with a limited 3-dimensional dataset in the current paper. Preliminary results intended for large-scale automatic reconstructions have been presented. They indicate that the successfulness of reconstruction is strongly dependent on the post-transformed microstructure. Factors such as morphology, grain size, variant selection, and deformation play roles. Few examples of reconstruction complexity at prior austenite boundaries leading to uncertain results are presented. Lastly, reconstructions are discussed in terms of meaningfulness and if they correctly represent pre-transformed grains and orientations. (C) 2014 Elsevier Inc. All rights reserved. English ELSEVIER SCIENCE INC ELECTRON BACKSCATTER DIFFRACTION ORIENTATION IMAGING MICROSCOPY VARIANT SELECTION PHASE-TRANSFORMATIONS GRAIN-STRUCTURE PARENT GRAINS CRYSTALLOGRAPHIC RECONSTRUCTION MECHANICAL-PROPERTIES AUSTENITE BETA EBSD and reconstruction of pre-transformation microstructures, examples and complexities in steels Article 10.1016/j.matchar.2014.06.023 1 MATERIALS CHARACTERIZATION, v.95, pp.219 - 231 MATERIALS CHARACTERIZATION 95 219 231 scie scopus 000340989900025 2-s2.0-84903999419 Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Materials Science, Characterization & Testing Materials Science Metallurgy & Metallurgical Engineering Article ELECTRON BACKSCATTER DIFFRACTION ORIENTATION IMAGING MICROSCOPY VARIANT SELECTION PHASE-TRANSFORMATIONS GRAIN-STRUCTURE PARENT GRAINS CRYSTALLOGRAPHIC RECONSTRUCTION MECHANICAL-PROPERTIES AUSTENITE BETA Parent phase reconstruction Phase transformation Electron backscattered diffraction Coincidence site lattice boundaries Friction stir welding