HIPIB Irradiation On The Surface Of The Metal Simulation Research

High-intensity pulsed ion beam (HIPIB) has important research value and scientificsignificance on the material surface modification effect, at the same time, HIPIB has broadapplication prospects in the field of surface engineering. More and more domestic and foreignscholars have studied it from all aspects.The finite element software ABAQUS is applied in this article, simulates the process ofHIPIB irradiation on the surface of the metal. HIPIB irradiation is studied in the metal surfacethermodynamic effect simulation process, and established the classical model calculationmodel to be more perfect than ever.Using ABAQUS finite element engineering software, with the classic body loading way,simulate the HIPIB single irradiation process of45steel and TC4. Research shows that targetmaterial and the sub-surface temperature is higher than the surface. When the energy is highenough, the surface and temperature surface will have gasification, formatting gaseous atoms,produce explosive eruptions, forming holes on the material surface. Because this article set ofpulse voltage to100kev, maximum beam density is300A/cm2, the overall energy level is low.So only in a single irradiation target material surface of45steel, the pits were present. And ina single irradiation TC4pits of target material and did not appear. This phenomenon alsoshows that only in the surface layer and the surface of target at the same time will be theemergence of the pits when gasification temperature is reached. Combined with thesimulation results of the stress field, obtained the pits two factors, gasification temperatureand stress field of the auxiliary function.Simulation results show that, C+, H+ions in the moments after the injection of targetmaterial, energy in the form of thermal energy storage in the surface layer and the surface oftarget. Target material surface is able to quickly achieve melting point, produced on thesurface of the phenomenon of liquefaction. This is consistent with the actual experimental results. And simulation results show that the surface of the cooling speed after the liquefaction,can reach109℃/s.In this paper, thermo-mechanical coupling calculation for the first time for strong pulseion beam irradiation process flow simulation, studied after the HIPIB irradiation, as the heattransfer and diffusion, target material surface, the surface and internal stress changes. Thispaper also mainly studied the internal stress changes on target material surface, andsub-surface in the two different conditions which are having pits and having no pits. It studiedthat as the change of time, the surface of target, the sub-surface and the change rule of theinternal stress field. t turned out that，as the cooling process, the internal stress of targetmaterial first increases, then reduce. And the position of stress concentration is also from thesurface to the internal change trend.