Microstructure and Properties of AlCrMnMoNiZr(B<sub>0.1</sub>) High Entropy Alloys Prepared by Powder Metallurgy Process

Zhao Ruifeng1; Li Hongju2; Ren Bo1; Chen Haijun1; Wang Xinli1; Li Gang1; Liu Zhongxia3

doi:10.15980/j.tzzz.2013.03.033

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Microstructure and Properties of AlCrMnMoNiZr(B_0.1) High Entropy Alloys Prepared by Powder Metallurgy Process
Vol. 33, Issue 3, Pages: 288-292(2013)
Published： 2013 ，
DOI： 10.15980/j.tzzz.2013.03.033

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[1]赵瑞锋,李红菊,任波,陈海军,王新莉,李刚,刘忠侠.粉末冶金制备AlCrMnMoNiZr(B_(0.1))合金的组织与性能[J].特种铸造及有色合金,2013,33(03):288-292.

Zhao Ruifeng1, Li Hongju2, Ren Bo1, et al. Microstructure and Properties of AlCrMnMoNiZr(B_0.1) High Entropy Alloys Prepared by Powder Metallurgy Process. [J]. Special Casting & Nonferrous Alloys 33(3):288-292(2013)
[1]赵瑞锋,李红菊,任波,陈海军,王新莉,李刚,刘忠侠.粉末冶金制备AlCrMnMoNiZr(B_(0.1))合金的组织与性能[J].特种铸造及有色合金,2013,33(03):288-292. DOI： 10.15980/j.tzzz.2013.03.033.

Zhao Ruifeng1, Li Hongju2, Ren Bo1, et al. Microstructure and Properties of AlCrMnMoNiZr(B_0.1) High Entropy Alloys Prepared by Powder Metallurgy Process. [J]. Special Casting & Nonferrous Alloys 33(3):288-292(2013) DOI： 10.15980/j.tzzz.2013.03.033.

摘要

采用粉末冶金工艺制备了AlCrMnMoNiZr、AlCrMnMoNiZrB0.1高熵合金

用X射线衍射仪、扫描电镜和数显硬度计对铸态和退火态合金的组织与硬度进行了表征。结果表明

两种高熵合金的组织均为富（Cr

Mo）BCC相和金属间化合物的混合组织。两种合金经700～1000℃退火后

其物相和组织结构并未发生明显改变

合金的硬度（HV）在铸态和高温退火态均保持在525以上

表现出较好的高温稳定性。微量元素B具有较好的固溶强化作用

使合金的铸态硬度（HV）由528增加至741。

Abstract

The AlCrMnMoNiZr（B0.1） high entropy alloys were prepared by powder metallurgy process.Microstructure and hardness of the as-cast and annealed alloys were characterized by X-ray diffraction

scanning electron microscopy and digital display Vickers hardness tester.The results show that the as-cast alloys are composed of a mixed structure of BCC solid solution phase（in-rich Cr

Mo） and intermetallic compound.After annealed at 700

000 ℃

absence of the phase and structure change in the alloys can be observed.The hardness of alloys at as-cast and annealed remains above 525 HV

showing a excellent high temperature stability.In addition

the hardness of the as-cast alloy is enhanced from 528 HV to 741 HV because of the solution strengthening of minor B element.

关键词

粉末冶金高熵合金微观组织时效硬化高温稳定性

Keywords

Powder Metallurgy ProcessHigh Entropy AlloyMicrostructureAge-hardeningHigh Temperature Stability

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Microstructure and Properties of AlCrMnMoNiZr(B0.1) High Entropy Alloys Prepared by Powder Metallurgy Process

DOI： 10.15980/j.tzzz.2013.03.033

摘要

Abstract

关键词

Keywords

references

Microstructure and Properties of AlCrMnMoNiZr(B_0.1) High Entropy Alloys Prepared by Powder Metallurgy Process