Microstructure and Mechanical Properties of TiC Reinforced AlCr2FeNi2Cu1.6 High Entropy Alloy Matrix Composites

Yang Sihua; Qu Yingdong; Zhang Yufeng; Yu Weiwei; Li Chengze; Nie Sainan; Tian Chang

doi:10.15980/j.tzzz.2019.07.002

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Microstructure and Mechanical Properties of TiC Reinforced AlCr₂FeNi₂Cu_1.6 High Entropy Alloy Matrix Composites
Vol. 39, Issue 7, Pages: 701-705(2019)
Published： 2019 ，
DOI： 10.15980/j.tzzz.2019.07.002

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[1]杨思华,曲迎东,张宇峰,于惟玮,李承泽,聂赛男,田畅.TiC增强AlCr_2FeNi_2Cu_(1.6)高熵合金基复合材料组织与性能[J].特种铸造及有色合金,2019,39(07):701-705.

Yang Sihua, Qu Yingdong, Zhang Yufeng, et al. Microstructure and Mechanical Properties of TiC Reinforced AlCr₂FeNi₂Cu_1.6 High Entropy Alloy Matrix Composites. [J]. Special Casting & Nonferrous Alloys 39(7):701-705(2019)
[1]杨思华,曲迎东,张宇峰,于惟玮,李承泽,聂赛男,田畅.TiC增强AlCr_2FeNi_2Cu_(1.6)高熵合金基复合材料组织与性能[J].特种铸造及有色合金,2019,39(07):701-705. DOI： 10.15980/j.tzzz.2019.07.002.

Yang Sihua, Qu Yingdong, Zhang Yufeng, et al. Microstructure and Mechanical Properties of TiC Reinforced AlCr₂FeNi₂Cu_1.6 High Entropy Alloy Matrix Composites. [J]. Special Casting & Nonferrous Alloys 39(7):701-705(2019) DOI： 10.15980/j.tzzz.2019.07.002.

摘要

采用真空电弧炉制备了（TiC）

/AlCr

FeNi

1.6

高熵合金复合材料

研究了TiC含量对AlCr

FeNi

1.6

高熵合金微观组织与力学性能的影响。结果表明

（TiC）

/AlCr

FeNi

1.6

高熵合金复合材料由FCC相和BCC相组成

TiC粉末的加入并未使高熵合金的物相结构发生转变

但随着TiC的添加

合金中出现了TiC的衍射峰。高熵合金中FCC相富集了Cu、Al、Ni元素

BCC相富集了Fe、Cr元素。添加TiC后

合金中出现了含有TiC的Al、Ni、Cu新相

且使高熵合金的压缩屈服强度和抗压强度先增加后减小。当TiC含量为7.5%时

合金的屈服强度和抗压强度相对较高

压缩应变骤降到8.32%。

Abstract

(TiC)

/AlCr

FeNi

1.6

high entropy alloy matrix composites were prepared by vacuum arc furnace.The effect of TiC content on microstructure and mechanical properties of AlCr

FeNi

1.6

high entropy alloy was analyzed.The results show that（TiC）

/AlCr

FeNi

1.6

high entropy alloy composites are composed of FCC phase and BCC phase.The addition of TiC powder does not change the phase structure of high entropy alloy.However

with the addition of TiC

the diffraction peaks of TiC appear in the alloy.The FCC phase contains more Cu

Ni elements and the BCC phase contains more Fe

Cr elements in the high entropy alloy.With the addition of TiC

new Al

Ni and Cu phase which contaion TiC appeared in the alloy.The compressive yield strength and fracture strength of high entropy alloy is increased firstly and then decreased with the addition of TiC.When the content of TiC is 7.5%

the yield strength and fracture strength of alloy are relatively higher

and the compressive strain is decreased rapidly to 8.32%.