Macro- and Microstructural Homogeneity of Nickel-Based Superalloy Product Material Obtained by Wire-Feed Electron Beam Additive Manufacturing
УДК 538.9: 669.243.018.44:669.245:621.7.048.
Abstract
This paper investigates the structural homogeneity of samples of articles made of ZhS6U alloy obtained by wire-feed electron beam additive technology. It is found that the formed material is represented by directionally growing dendrites and does not contain any defects. The temperature gradient value and its dependence on the height of the additively formed product are estimated using the change in the primary dendrite arm spacing. On this basis, it is concluded that the temperature gradient values achieved during the additional formation process correspond to the modern methods of directional solidification. The features of the electron-beam additive process that affect the heat removal conditions and cause changes in the temperature gradient are shown. It is found that changes in these conditions do not significantly affect the size and morphology of the intermetallic γ'-phase. It is demonstrated that the mechanical properties of the additively formed product material are superior to those of the original material in the as-cast state.
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Copyright (c) 2023 Денис Андреевич Гурьянов , Сергей Валерьевич Фортуна , Сергей Юрьевич Никонов , Евгений Александрович Колубаев , Андрей Валерьевич Чумаевский
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