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Andreas Bührig-Polaczek coauthored Grain Selection in a High-Efficiency 2D Grain Selector During Casting of Single-Crystal Superalloys by Xintao Zhu and others. The experiments use optical microscopy and electron backscatter diffraction to follow competitive growth of crystal grains in a nickel-based superalloy. Varying the selector geometry tests how one crystal grain survives to form a single crystal.^[ref]

Dexin Ma coauthored Grain Selection in a High-Efficiency 2D Grain Selector During Casting of Single-Crystal Superalloys by Xintao Zhu and others. The experiments use optical microscopy and electron backscatter diffraction to follow competitive growth of crystal grains in a nickel-based superalloy. Varying the selector geometry tests how one crystal grain survives to form a single crystal.^[ref]

Electron backscatter diffraction determines crystallographic information from electron diffraction patterns recorded in a scanning electron microscope. A scanned electron beam strikes a crystalline specimen, and the detector records backscattered-electron diffraction patterns. Their band geometry can be indexed against a crystal model to estimate local orientation and identify compatible phases.^[ref]

Repeating the measurement across a surface produces an orientation map that can reveal crystal grains, boundaries and changes associated with deformation or recrystallisation. Preparation and pattern quality matter: a map records successfully indexed information, so poor surface quality or an unsuitable structural model can create missing or misleading assignments. It complements chemical analysis rather than directly reporting elemental composition.

Fu Wang coauthored Grain Selection in a High-Efficiency 2D Grain Selector During Casting of Single-Crystal Superalloys by Xintao Zhu and others. The experiments use optical microscopy and electron backscatter diffraction to follow competitive growth of crystal grains in a nickel-based superalloy. Varying the selector geometry tests how one crystal grain survives to form a single crystal.^[ref]

Xintao Zhu coauthored Grain Selection in a High-Efficiency 2D Grain Selector During Casting of Single-Crystal Superalloys by Xintao Zhu and others. The experiments use optical microscopy and electron backscatter diffraction to follow competitive growth of crystal grains in a nickel-based superalloy. Varying the selector geometry tests how one crystal grain survives to form a single crystal.^[ref]