研究了合金元素Mn不同含量对铝热反应熔化法制备的块体纳米晶Fe3Al材料力学性能的影响,结果表明当Mn添加到纳米晶Fe3Al材料中,对其压缩屈服强度和抗弯强度影响显著.加Mn 10%时,纳米晶Fe3Al材料的力学性能得到很大提高,使材料由脆性材料向塑性材料转变,大幅度提高了其压缩屈服强度,而且提高了抗弯屈服强度.含Mn 10 wt%的材料具有最佳的力学性能是由于其具有最小的纳米晶粒尺寸.对含Mn 10 wt%的材料在不同加载速率下进行的压缩性能试验研究表明:材料的压缩屈服强度随加载速率的增大而降低.
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