Study on Microstructure，Mechanical and Tribological Properties of the AlxCrFeNi3Ti0.3High-Entropy Alloys

JIANG Junjie, XIN Benbin, ZHANG Aijun, HAN Jiesheng, MENG Junhu

doi:10.16577/j.issn.1001-1560.2023.0180

Materials Protection >

2023 , Vol. 56 >Issue 8: 1 - 7

DOI: https://doi.org/10.16577/j.issn.1001-1560.2023.0180

Study on Microstructure，Mechanical and Tribological Properties of the Al_xCrFeNi₃Ti_0.3High-Entropy Alloys

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1.Key Laboratory of Science and Technology on Wear and Protection of Materials，Lanzhou Institute of Chemical Physics，Chinese Academy of Sciences，Lanzhou 730000，China；
2.Center of Materials Science and Optoelectronics Engineering，University of Chinese Academy of Sciences，Beijing 100049，China

Received date: 2023-02-18

Revised date: 2023-03-15

Accepted date: 2023-04-12

Online published: 2023-08-24

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Abstract

In order to provide technical support and theoretical support for the application of AlxCrFeNi3Ti0.3high-entropy alloy in the tribological field，the AlxCrFeNi3Ti0.3high-entropy alloys (HEAs) were prepared by arc melting，and the effects of the Al contents on the microstructure，mechanical and tribological properties of the HEAs were investigated by X-ray diffractometer，Vickers hardness tester，friction testing machine，universal testing machine，three-dimensional profilometer，scanning electron microscope，etc.Results showed that the addition of the Al made the microstructure of the HEAs transformed from a single FCC phase to a coexistence of FCC and BCC with dendritic structure.With the increase of the Al content，the density of the HEAs decreased while the hardness，yield strength and compressive strength of the HEAs increased significantly，showing excellent comprehensive mechanical properties.Moreover，the addition of the Al significantly improved the wear resistance of the HEAs，in which the room temperature wear resistance of the Al1.2CrFeNi3Ti0.3HEA increased about 8 times compared with that of the HEA without Al.The wear mechanism of the HEAs changed from abrasive wear to oxidative wear with increasing Al content.Besides，the increase in strength and hardness as well as the formation of the hard oxide layer on the worn surface were the main reasons for the improved wear resistance of the HEAs.

Key words： AlxCrFeNi3Ti0.3 high-entropy alloys; microstructure; mechanical properties; tribological properties; wear resistant mechanism

Cite this article

JIANG Junjie, XIN Benbin, ZHANG Aijun, HAN Jiesheng, MENG Junhu . Study on Microstructure，Mechanical and Tribological Properties of the Al_xCrFeNi₃Ti_0.3High-Entropy Alloys[J]. Materials Protection, 2023 , 56(8) : 1 -7 . DOI: 10.16577/j.issn.1001-1560.2023.0180

References

[1] CANTOR B，CHANG I T H，KNIGHT P，et al.Microstructural development in equiatomic multicomponent alloys[J].Materials Science and Engineering A，2004，375-377:213-218.

[2] YEH J W，CHEN S K，LIN S J，et al.Nanostructured high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes[J].Advanced Engineering Materials，2004，6(5): 299-303.

[3] 农智升，李宏宇，王继杰.AlCrFeNiTi 高熵合金热稳定性的研究[J].稀有金属材料与工程，2018，47(1):191-196.NONG Z S，LI H Y，WANG J J.Research on the thermal stability of AlCrFeNiTi high-entropy alloy[J].Rare Metal Materials and Engineering，2018，47(1):191-196.

[4] NENE S S，FRANK M，LIU K，et al.Corrosion-resistant high entropy alloy with high strength and ductility[J].Scripta Materialia，2019，166: 168-172.

[5] 李鹏德，吴有智，张爱军，等.Al0.2Co1.5CrFe1.2Ni1.5TiC0.4高熵合金的微观组织、力学与高温摩擦学性能[J].摩擦学学报，2017，37(4): 457-464.LI P D，WU Y Z，ZHANG A J，et al.Microstructure，mechanical and high temperature tribological properties of Al0.2Co1.5CrFe1.2Ni1.5TiC0.4high entropy alloy[J].Tribology，2017，37(4): 457-464.

[6] LEE C，SONG G，GAO M C，et al.Lattice distortion in a strong and ductile refractory high-entropy alloy[J].Acta Materialia，2018，160: 158-172.

[7] ZHANG Y，ZUO T T，TANG Z，et al.Microstructures and properties of high-entropy alloys[J].Progress in Materials Science，2014，61: 1-93.

[8] CHUANG M H，TSAI M H，WANG W R，et al.Microstructure and wear behavior of AlxCo1.5CrFeNi1.5Tiyhigh entropy alloys [J].Acta Materialia，2011，59 ( 16):6 308-6 317.

[9] LIU S，GAO M C，LIAW P K，et al.Microstructures and mechanical properties of AlxCrFeNiTi0.25alloys[J].Journal of Alloys and Compounds，2015，619: 610-615.

[10] SEIFI M，LI D Y，ZHANG Y，et al.Fracture Toughness and Fatigue Crack Growth Behavior of As-Cast High-Entropy Alloys[J].JOM，2015，67(10): 2 288-2 295.

[11] WU J M，LIN S J，YEH J W，et al.Adhesive wear behavior of AlxCoCrCuFeNi high-entropy alloys as a function of aluminum content[J].Wear，2006，261(5/6): 513-519.

[12] NONG Z S，LEI Y N，ZHU J C.Wear and oxidation resistances of AlCrFeNiTi-based high entropy alloys[J].Intermetallics，2018，101: 144-151.

[13] KAO Y F，CHEN T J，CHEN S K，et al.Microstructure and mechanical property of as-cast，-homogenized and -deformed AlxCoCrFeNi (0≤x≤2) high-entropy alloys[J].Journal of Alloys and Compounds，2009，488: 57-64.

[14] MIRACLE D B，SENKOV O N.A critical review of high entropy alloys and related concepts [J].Acta Materialia，2017，122: 448-511.

[15] 马文林，王府伯，张爱军，等.CoCrFeMoNiCx中熵合金的组织及其力学和摩擦学性能[J].摩擦学学报，2021，41(6): 913-923.MA W L，WANG F B，ZHANG A J，et al.Microstructure，mechanical and tribological properties of CoCrFeMoNiCxhigh entropy alloy[J].Tribology，2021，41(6): 913-923.

[16] 宋芊汀，徐映坤，徐坚.(TiZrNbTa)90Mo10高熵合金与Al2O3干摩擦条件下的滑动磨损行为[J].金属学报，2020，56(11): 1 507-1 520.SONG Q T，XU Y K，XU J.Sliding wear behavior of(TiZrNbTa)90Mo10high entropy alloy with Al2O3under dry friction conditions[J].Acta Metallurgica Sinica，2020，56(11): 1 507-1 520.

[17] AMINZADEH A.Excitation frequency dependence and fluorescence in the Raman spectra of Al2O3[J].Applied Spectroscopy，1997，51(6): 817-819.

[18] SMITH E H，ARNELL R D.The prediction of frictional temperature increases in dry，sliding contacts between different materials[J].Tribology Letters，2014，55 (2):315-328.

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