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AlNiCrFexMo0.2CoCu High Entropy Alloys Prepared by Powder Metallurgy
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AlNiCrFexMo0.2CoCu High Entropy Alloys Prepared by Powder Metallurgy
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    摘要:

    采用粉末冶金方法制備AlNiCrFexMo0.2CoCu(x=0.5,1.0,1.5,2.0)高熵合金,研究Fe元素對合金組織和性能的影響。對4種合金進行XRD分析,發(fā)現(xiàn)當(dāng)x=0.5、1.0和1.5時,有bcc、fcc和σ相組成,當(dāng)x=2.0時,合金只有bcc和fcc兩相。4種合金硬度隨著Fe含量的增加而降低,當(dāng)x=0.5時,布氏硬度為3170 MPa,x=2.0時,布氏硬度為2290 MPa。對合金進行壓縮實驗發(fā)現(xiàn),斷裂強度均超過1100 MPa,且具有較好的塑性。

    Abstract:

    AlNiCrFexMo0.2CoCu (x=0.5, 1.0, 1.5 2.0) high entropy alloys were prepared by the method of powder metallurgy. Effects of Fe content on microstructure, hardness and comprehensive mechanical properties were investigated. The XRD results show that constituent phases change from bcc+fcc+ σ at x=0.5 to bcc+fcc at x=2.0. The hardness of the alloys varies from HBW3170 MPa at x=0.5 to HBW2290 MPa at x=2.0. The fracture strengths of all the AlNiCrFexMo0.2CoCu alloys are higher than 1100 MPa, and have a good plasticity.

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范玉虎,張云鵬,關(guān)紅艷,索會敏,何 力. AlNiCrFexMo0.2CoCu High Entropy Alloys Prepared by Powder Metallurgy[J].稀有金屬材料與工程,2013,42(6):1127~1129.[Fan Yuhu, Zhang Yunpeng, Guan Hongyan, Suo Huimin, He Li. AlNiCrFexMo0.2CoCu High Entropy Alloys Prepared by Powder Metallurgy[J]. Rare Metal Materials and Engineering,2013,42(6):1127~1129.]
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  • 收稿日期:2012-06-20
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