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    宏觀顆粒增強鐵基復合材料的制備與性能

    邱博 邢書明 董琦

    邱博, 邢書明, 董琦. 宏觀顆粒增強鐵基復合材料的制備與性能[J]. 工程科學學報, 2018, 40(8): 969-978. doi: 10.13374/j.issn2095-9389.2018.08.011
    引用本文: 邱博, 邢書明, 董琦. 宏觀顆粒增強鐵基復合材料的制備與性能[J]. 工程科學學報, 2018, 40(8): 969-978. doi: 10.13374/j.issn2095-9389.2018.08.011
    QIU Bo, XING Shu-ming, DONG Qi. Fabrication and properties of Fe matrix composites reinforced by macro-particles[J]. Chinese Journal of Engineering, 2018, 40(8): 969-978. doi: 10.13374/j.issn2095-9389.2018.08.011
    Citation: QIU Bo, XING Shu-ming, DONG Qi. Fabrication and properties of Fe matrix composites reinforced by macro-particles[J]. Chinese Journal of Engineering, 2018, 40(8): 969-978. doi: 10.13374/j.issn2095-9389.2018.08.011

    宏觀顆粒增強鐵基復合材料的制備與性能

    doi: 10.13374/j.issn2095-9389.2018.08.011
    基金項目: 

    中央高校基本科研業務費專項資金資助項目(2018YJS139)

    詳細信息
    • 中圖分類號: TB331

    Fabrication and properties of Fe matrix composites reinforced by macro-particles

    • 摘要: 顆粒與基體之間難以均勻穩定的混合以及二者的界面結合強度較差是限制顆粒增強金屬基復合材料制備以及推廣應用的共性關鍵問題,而目前的主要解決措施"預制體法"以及"潤濕化預處理技術"又存在生產效率較低、制備成本較高等問題.基于此,在液態模鍛的基礎上,提出了不做預制體、也不進行潤濕化預處理的制備顆粒增強金屬基復合材料的新技術——"隨流混合+高壓復合"技術,并采用此方法成功制備了復合效果良好的ZTA/KmTBCr26抗磨復合材料.研究了ZTA/KmTBCr26復合材料的微觀組織、硬度以及沖擊性能,發現復合材料內部顆粒分布比較均勻,顆粒與KmTBCr26基體的結合緊密,屬于微機械嚙合.沖擊試驗結果表明,復合材料的沖擊韌性與單一金屬基體相比顯著降低,沖擊斷口形貌顯示材料的斷裂是沿顆粒內部擴展的,沒有出現顆粒的整體脫落,說明陶瓷顆粒與金屬基體具有比較高的結合強度.考察了ZTA/KmTBCr26復合材料與單一KmTBCr26的干摩擦磨損性能,結果表明,低載荷條件下ZTA/KmTBCr26復合材料的磨損性能是KmTBCr26的1.82倍,而高載荷條件下復合材料的磨損性能則是KmTBCr26的3.3倍.

       

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    出版歷程
    • 收稿日期:  2017-09-23

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