Simulation of Internal Stresses at the Metals and Alloys Radiation with Charged Particle Beams

The paper proposes a model for longitudinal and transverse stresses simulation by multigrid technique with numerical solutions of differential equations in partial derivatives for research the processes of detachment and cracking on the surface layers of metal and alloy products. The developed model can be useful at the optimal modes selection of surface treatment with electron and ion beams radiation. Simulation shows that in order to avoid the cracks appearance on the AISI A2 steel surface radiated with 400 keV electron beam energy the maximum radiation parameters should not exceed 0.9 kA/cm2 current density and 150 ns pulse duration. This investigation assesses the stress arising at the matrix depth in a perpendicular direction to the electron beam and evaluates its magnitude that may exceed the stresses occurring through the matrix depth more than twice.