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This work characterizes the feathery-like structures produced in a Ti–46.8Al–1.7Cr–1.8Nb (at.%) alloy during rapid continuous cooling from the α domain. Their morphology and crystallography are described using different microscopy and orientation mapping techniques. These feathery-like structures are divided into many small domains, characterized by low-angle misorientations (rotated less than 15°)...
Microstructures composed of Widmanstätten laths embedded in lamellar colonies were obtained by moderate rapid cooling of a quaternary near-γ TiAl alloy, Ti–46.8Al–1.7Cr–1.8Nb (at.%). The morphological and crystallographic features of these microstructures were characterized using SEM (with EBSD) and TEM. Identification of different γ variants was done using an original approach based on automatic...
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