高温高速液滴による皮膜形成素過程の分子動力学解析 : 液滴の扁平過程と原子挙動(機械要素,潤滑,工作,生産管理など)

概要

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In order to clarify the flattening process of the high-temperature and high-speed droplet due to its impact on the substrate in an atomic level, a three-dimensional molecular dynamics simulation was conducted. The droplet and the substrate were assumed to consist of pure aluminum, and Morse potential was postulated between a pair of aluminum atoms. By visualizing the analytical result, the processes of melting and solidification, temperature distribution, deformation velocity and potential energy of atoms of the droplet were clarified. As a result, following conclusions were obtained : (1) The transfer of the droplet atoms to the horizontal direction in flattening process increases in proportion to the horizontal distance from the central axis of the droplet. (2) The solidification of the droplet starts from the outside edge of the droplet, and finishes as the flattening ratio increases.
社団法人日本機械学会の論文
2005-01-25