電子衝撃圧力のモデリングとシミュレーション

概要

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Pressure due to impingement of high-energy electrons onto the metal surface is considered to have the influence of deforming the molten metal surface, especially in cases where an electron beam is employed as an energy driver to evaporate molten metal. Here, a modelling of such electron impingiment pressure was proposed in terms of relativistic collision theory. By Monte Carlo simulation, electron impingement pressure, which was calculated as momentum transfer of high-energy electrons, was compared with vapor pressure, another factor that mainly influences deformation of the molten metal surface. According to the calculated results, although electron impingement pressure is smaller than vapor pressure in general cases, surface concavity induced by electron impingement pressure in addition to vapor pressure might develop and penetrate into the molten metal when the electron beam is focused and current density is increased to some degree.
社団法人日本機械学会の論文
1995-05-25