通过铝热反应法分别在玻璃和铜底材上制备了块体纳米晶Fe3Al、Fe3Al-10Mn、Fe3Al-10Cr合金,研究了不同底材和合金元素对合金显微结构和力学性能的影响.结果表明:玻璃底材上得到Fe3Al-10Mn合金为有序DO3结构,其他均为无序bcc结构;玻璃底材上得到的合金平均晶粒尺寸分别为27 nm、19 nm、23 nm;而铜底材上得到的合金分别为18nm、15 nm、22 nm;玻璃底材上得到的Fe3Al和Fe3Al-10Mn合金的屈服强度和维氏硬度有所降低,但纯Fe3Al合金的塑性较好,同时玻璃底材上Fe3Al-10Cr合金的维氏硬度和屈服强度分别提高了42.4％和20％,分别为292 HV30和960 MPa;不同合金元素对在玻璃底材上制备的合金塑性影响不大,但屈服强度有所提高.
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