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Volume 40 Issue 6
Dec.  2022
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YANG Xiao-hui, YI Hong, XIE Hui-qi, LI Xiao-feng, LIU Bin. Effects of Y2O3 on microstructure and mechanical properties of AlCoCrFeNi high-entropy alloy coatings[J]. Powder Metallurgy Technology, 2022, 40(6): 549-554. DOI: 10.19591/j.cnki.cn11-1974/tf.2022010010
Citation: YANG Xiao-hui, YI Hong, XIE Hui-qi, LI Xiao-feng, LIU Bin. Effects of Y2O3 on microstructure and mechanical properties of AlCoCrFeNi high-entropy alloy coatings[J]. Powder Metallurgy Technology, 2022, 40(6): 549-554. DOI: 10.19591/j.cnki.cn11-1974/tf.2022010010
shu

Effects of Y2O3 on microstructure and mechanical properties of AlCoCrFeNi high-entropy alloy coatings

  • 1.

    School of Materials Science and Engineering, Taiyuan University of Science and Technology, Taiyuan 030024, China

  • 2.

    School of Materials Science and Engineering, North University of China, Taiyuan 030051, China

  • 3.

    State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China

More Information
  • Corresponding author:

    YANG Xiao-hui, E-mail: xhyang@tyust.edu.cn (YANG X H)

    LI Xiao-feng, lxf@nuc.edu.cn (LI X F)

  • Received Date: January 13, 2022
  • Accepted Date: January 17, 2022
  • Available Online: March 28, 2022
    Graphical Abstract
    • Abstract

  • AlCoCrFeNi high entropy alloy (HEA) coatings add by Y2O3 in the different mass fraction were prepared on Q235 steel matrix by laser cladding technology in this study, and the microstructure, hardness, and wear resistance of the AlCoCrFeNi high entropy alloy coatings were analyzed by X-ray diffractometer, scanning electron microscope, microhardness tester, and friction and wear tester. The results show that, the phase structure of AlCoCrFeNi HEAs coatings is composed of face-centered cubes (FCC) phase and body-centered cubes (BCC) phase. The volume fraction of BCC phase increases with the increase of Y2O3 mass fraction, while the FCC phase volume fraction shows the opposite trend. The microstructure of the AlCoCrFeNi high-entropy alloy coatings is composed of the equiaxed crystals, the addition of Y2O3 promotes the melt pool flow, makes the pores disappear gradually, improves the denseness, and makes the grains become fine. The addition of 5% Y2O3 (mass fraction) in the coatings results in the dendritic organization and the diffusely distributed YAl2 and Y2O3 phases, and the coating microhardness reaches up to HV 350, which is about twice than that of the AlCoCrFeNi high-entropy alloy coatings, showing the obvious strengthening effect. The addition of Y2O3 is beneficial to promote the formation of BCC phase and the precipitation of YAl2 phase in the coatings, which can effectively improve the hardness and wear resistance of the high entropy alloy coatings.

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    • References (16)
  • [1]
    Sun S J, Tan Y Z, Lin H R, et al. Enhanced strength and ductility of bulk CoCrFeMnNi high entropy alloy having fully recrystallized ultrafine-grained structure. Mater Des, 2017, 133: 122 DOI: 10.1016/j.matdes.2017.07.054
    [2]
    张雪, 崔洪芝, 王明亮, 等. Al含量对AlxCoCrFeNi系高熵合金组织和耐蚀性能的影响. 材料热处理学报, 2018, 39(12): 29

    Zhang X, Cui H Z, Wang M L, et al. Effect of Al content on microstructure and corrosion resistance of AlxCoCrFeNi high entropy alloys. Trans Mater Heat Treat, 2018, 39(12): 29
    [3]
    马明星, 朱达川, 王志新, 等. Zr元素对CoCrCuFeMn高熵合金组织及耐磨性能的影响. 工程科学与技术, 2021, 53(6): 204

    Ma M X, Zhu D C, Wang Z X, et al. Effect of Zr addition on microstructure and wear properties of CoCrCuFeMn high-entropy alloy. Adv Eng Sci, 2021, 53(6): 204
    [4]
    Senkov O N, Jensen J K, Pilchak A L, et al. Compositional variation effects on the microstructure and properties of a refractory high-entropy superalloy AlMo0.5NbTa0. 5TiZr. Mate Des, 2017, 139: 498
    [5]
    Zhang W, Liaw P K, Zhang Y. Science and technology in high-entropy alloys. Sci China Mate, 2018, 61(1): 2 DOI: 10.1007/s40843-017-9195-8
    [6]
    Li X F, Fu A, Cao Y K, et al. High-temperature mechanical properties and deformation behavior of carbides reinforced TiNbTaZrHf composite. J Alloys Compd, 2022, 894: 162414 DOI: 10.1016/j.jallcom.2021.162414
    [7]
    Das A K. Effect of rare earth oxide additive in coating deposited by laser cladding: A review. Mater Today Proc, 2022, 52: 1558 DOI: 10.1016/j.matpr.2021.11.236
    [8]
    Rogal L, Kalita D, Litynska-Dobrzynska L. CoCrFeMnNi high entropy alloy matrix nanocomposite with addition of Al2O3. Intermetallics, 2017, 86: 104 DOI: 10.1016/j.intermet.2017.03.019
    [9]
    Li X F, Yang X H, Yi D H, et al. Effects of NbC content on microstructural evolution and mechanical properties of laser cladded Fe50Mn30Co10Cr10-xNbC composite coatings. Intermetallics, 2021, 138: 107309 DOI: 10.1016/j.intermet.2021.107309
    [10]
    Jia B, Liu X J, Wang H, et al. Microstructure and mechanical properties of FeCoNiCr high-entropy alloy strengthened by nano-Y2O3 dispersion. Sci China Technol Sci, 2018, 61(2): 179 DOI: 10.1007/s11431-017-9115-5
    [11]
    郭铁明, 蒲亚博, 张瑞华, 等. Y2O3含量对激光熔覆0.3C-18Cr合金涂层组织和性能的影响. 稀有金属材料与工程, 2019, 48(11): 3643

    Guo T M, Pu Y B, Zhang R H, et al. Influence of Y2O3 content on microstructure and properties of laser cladding 0.3C-18Cr alloy coating. Rare Met Mater Eng, 2019, 48(11): 3643
    [12]
    王成磊, 高原, 张光耀. Y2O3对铝合金表面激光增材制造组织及耐蚀性影响. 稀有金属材料与工程, 2017, 46(3): 812

    Wang C L, Gao Y, Zhang G Y. Effect of Y2O3 addition on interface structure and corrosion resistance of laser additive manufacturing on the surface of Al alloys. Rare Met Mater Eng, 2017, 46(3): 812
    [13]
    Gu X, Jiang S, Cao F, et al. A β-solidifying TiAl alloy reinforced with ultra-fine Y-rich precipitates. Scr Mater, 2021, 192: 55 DOI: 10.1016/j.scriptamat.2020.10.010
    [14]
    Li X F, Feng X H, Liu B, et al. Influence of NbC particles on microstructure and mechanical properties of AlCoCrFeNi high-entropy alloy coatings prepared by laser cladding. J Alloys Compd, 2019, 788: 485 DOI: 10.1016/j.jallcom.2019.02.223
    [15]
    Liu H, Sun S F, Zhang T, et al. Effect of Si addition on microstructure and wear behavior of AlCoCrFeNi high-entropy alloy coatings prepared by laser cladding. Surf Coat Technol, 2021, 405: 126522 DOI: 10.1016/j.surfcoat.2020.126522
    [16]
    缪小进, 夏思海, 武美萍, 等. 添加CeO2对铝合金表面激光熔覆铝钛熔覆层性能的影响. 金属热处理, 2021, 46(9): 234

    Miao X J, Xia S H, Wu M P, et al. Effect of adding CeO2 on properties of Al-Ti laser clad coating on aluminum alloy. Heat Treat Met, 2021, 46(9): 234
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