• Volume 30 Issue 12
    Aug.  2021
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    Article Contents
    TANG Chunfeng, PAN Feng, QU Xuanhui, JIA Chengchang, DUAN Bohua, HE Xinbo. Supersolidus liquid phase sintering of Inconel 718 powder alloy[J]. Chinese Journal of Engineering, 2008, 30(12): 1366-1368. doi: 10.13374/j.issn1001-053x.2008.12.017
    Citation: TANG Chunfeng, PAN Feng, QU Xuanhui, JIA Chengchang, DUAN Bohua, HE Xinbo. Supersolidus liquid phase sintering of Inconel 718 powder alloy[J]. Chinese Journal of Engineering, 2008, 30(12): 1366-1368. doi: 10.13374/j.issn1001-053x.2008.12.017

    Supersolidus liquid phase sintering of Inconel 718 powder alloy

    doi: 10.13374/j.issn1001-053x.2008.12.017
    • Received Date: 2008-01-12
    • Rev Recd Date: 2008-03-22
    • Available Online: 2021-08-06
    • Nickel base powder superalloy Inconel 718 was prepared from pre-alloyed powder by supersolidus liquid phase sintering. The results show that compacts with a relative density over 98% can be obtained by sintering at 1240℃ for 120 min in vacuum. The relative density of sintered samples could be increased to 99.7% by next hot isostatic pressing process. The tensile strength and ductility of heat-treated samples are 1 280 MPa and 9% respectively at room temperature. The precipitates are spherical γ' and needle γ' and coarse carbides, and the average grain size is below 50μm.

       

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        沈陽化工大學材料科學與工程學院 沈陽 110142

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