Ni含量对AlCrCuNi<sub>x</sub>Ti高熵合金微观组织和硬度的影响

陈冲; 李红菊

doi:10.15980/j.tzzz.2019.06.017

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Ni含量对AlCrCuNi_xTi高熵合金微观组织和硬度的影响
Effects of Ni Content on Microstructure and Hardness of AlCrCuNi_xTi High Entropy Alloys
2019年39卷第6期页码：643-646
纸质出版日期： 2019 ，
DOI： 10.15980/j.tzzz.2019.06.017

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[1]陈冲,李红菊.Ni含量对AlCrCuNi_xTi高熵合金微观组织和硬度的影响[J].特种铸造及有色合金,2019,39(06):643-646.

Chen Chong, Li Hongju. Effects of Ni Content on Microstructure and Hardness of AlCrCuNi_xTi High Entropy Alloys[J]. Special Casting & Nonferrous Alloys, 2019,39(6):643-646.
[1]陈冲,李红菊.Ni含量对AlCrCuNi_xTi高熵合金微观组织和硬度的影响[J].特种铸造及有色合金,2019,39(06):643-646. DOI： 10.15980/j.tzzz.2019.06.017.

Chen Chong, Li Hongju. Effects of Ni Content on Microstructure and Hardness of AlCrCuNi_xTi High Entropy Alloys[J]. Special Casting & Nonferrous Alloys, 2019,39(6):643-646. DOI： 10.15980/j.tzzz.2019.06.017.

摘要

采用电弧熔炼工艺制备了AlCrCuNi

Ti（x=0.2、0.4、0.6、1.0）高熵合金

采用X射线衍射分析（XRD）、带EDS分析仪的扫描电镜（SEM）和显微硬度计对合金的物相结构、微观组织形貌、元素分布和硬度进行了分析。结果表明

当x=0.2、0.4和0.6时

合金物相主要由FCC1、FCC2和BCC相组成

当x=1.0时

合金物相主要由FCC1和FCC2相组成。合金硬度随Ni含量的增加而逐渐减小

其硬度（HV）由430降低至386。

Abstract

The AlCrCuNi

Ti（x=0.2

0.4

0.6

1.0）high entropy alloys were prepared by arc melting process.The phase

microstructure

elemental distribution and hardness of the alloys were characterized by X-ray diffraction（XRD）

scanning electron microscopy（SEM）and digital display Vickers hardness tester.The results show that the alloys are composed of a mixed structure of FCC1

FCC2 and BCC phases when the x=0.2

0.4 and 0.6.As the x=1.0

the alloys consist of FCC1 and FCC2 phases.The hardness of the alloys is decreased gradually from430 HV to 386 HV with the increase of Ni content.