Surface morphology of polycrystalline cerium-lanthanum alloy in nanometric cutting

J Ren and M Lai and FZ Fang, JOURNAL OF MANUFACTURING PROCESSES, 101, 714-720 (2023).

DOI: 10.1016/j.jmapro.2023.05.111

Molecular dynamics simulation is carried out for the nanometric cutting of polycrystalline cerium-lanthanum alloy. By adjusting different grain orientations, the effects of slip direction on the alloy's surface morphology are studied at various undeformed chip thickness. The causes of the elastic deformation of the workpiece surface are clarified by analyzing the atomic motion trajectories. The grain boundary migration found during the simulation is also illustrated. Results show that slip deformation is the main influencing factor of plastic deformation in the processing, and the number of slip lines affects the surface step height of polycrystals.

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