Evolution of grain structure during laser additive manufacturing. Simulation by a cellular automata method

A. Zinoviev, O. Zinovieva, V. Ploshikhin, V. Romanova, R. Balokhonov

    Результат исследований: Материалы для журналаСтатья

    76 Цитирования (Scopus)

    Аннотация

    We have developed a two-dimensional numerical model to simulate the evolution of grain structure observed during the laser additive manufacturing process. A cellular automata method is used to describe grain growth. The Goldak heat source model is adopted to calculate the heat input during laser melting. A selective laser melting process which involves sequential deposition of powder layers on a polycrystalline substrate followed by their melting is examined. The influence of the heat source parameters on the evolution of grain structure is discussed. The simulation results are shown to be consistent with the experimental data describing the main characteristics of the grain structure.

    Язык оригиналаАнглийский
    Страницы (с-по)321-329
    Число страниц9
    ЖурналMaterials and Design
    Том106
    DOI
    СостояниеОпубликовано - 15 сен 2016

    ASJC Scopus subject areas

    • Materials Science(all)
    • Mechanics of Materials
    • Mechanical Engineering

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