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Study of Deformation of Cube-Textured Aluminum Using Laser-induced Photoelectron Emission



M Cai, Lyle E. Levine, J T. Dickinson


Deformation of a cube-oriented aluminum sample was monitored by the laser-induced photoelectron emission technique. A retarding field energy analyzer was applied to determine the energy distribution of photoelectrons. Due to the anisotropy of the surface work function in aluminu8m, electrons, of 0.5 eV (using 248-nm laser with a photon energy of 5.0 eV) were found to dominate the photoelectron energy spectra indicating a strong cube texture. After deformation, obvious increases in the intensities of photoelectrons with larger than 0.5 eV kinetic energies were detected, which correspond to the increases of high-indexed surface area (e.g. 111} and 110}). Quantitative texture analysis by electron backscattered diffraction (EBSD) data showed an increase of 110} surface area after deformation. Laser-induced photoelectron emission is sensitive to slip events and possible grain rotation, while EBSD measures texture evolution as a result fo slip and lattice rotation. The higher energies observed in the photoelectron spectra are consistent with the measured evolution in texture during deformation of the specimen.
Journal of Materials Research


diffraction and aluminum, electron backscattered, field energy analyzer, photoelectron emission


Cai, M. , Levine, L. and Dickinson, J. (2021), Study of Deformation of Cube-Textured Aluminum Using Laser-induced Photoelectron Emission, Journal of Materials Research (Accessed July 25, 2024)


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Created October 12, 2021