王书亮,李奇霖,毛一点,西宇辰,董立谨,张华礼

• 1:西南石油大学新能源与材料学院
• 2:中国石油西南油气田公司工程技术研究院

摘要(Abstract)：

在各元素成相作用和降低成本的基础上，利用机械球磨与放电等离子烧结的方法成功制备了一种富铁非等原子比Fe_(45)Cr_(15)Co_(10)Ni_(30)高熵合金。在该合金中通过降低Co和Ni的方式引入Ti元素，并研究了Ti的含量对合金力学性能的影响。结果表明：与Fe_(45)Cr_(15)Co_(10)Ni_(30)合金相比，含Ti的高熵合金出现了富Ti的BCC相；随着Ti含量的增加，FeCrCoNiTi高熵合金的微观组织发生了变化，富Ti的BCC相颗粒变得细小，相的形貌与分布也出现了变化，导致合金的硬度、屈服强度和抗拉强度先升高后降低，应变率逐渐降低，其中Fe_(45)Cr_(15)Co_6Ni_(26)Ti_8合金的综合性能最好，硬度为(404.2±6.3) HV0.3,屈服强度与抗压强度分别达到最高的(1036±12) MPa和(1883±10) MPa,应变率也维持了较高的水准，为(47.1±3.3)%。

关键词(KeyWords)： 富铁;机械球磨;放电等离子烧结;高熵合金;力学性能

Abstract:

Keywords:

基金项目(Foundation): 钒钛资源综合利用产业技术创新战略联盟协同研发项目

作者(Author): 王书亮,李奇霖,毛一点,西宇辰,董立谨,张华礼

DOI: 10.13289/j.issn.1009-6264.2022-0627

参考文献(References)：

• [1] Han S Z,Choi E A,Lim S H,et al.Alloy design strategies to increase strength and its trade-offs together[J].Progress in Materials Science,2021,117:100720.
• [2] Li M Y,Zhang Q,Han B,et al.Investigation on microstructure and properties of AlxCoCrFeMnNi high entropy alloys by ultrasonic impact treatment[J].Journal of Alloys and Compounds,2020,816:152626.
• [3] Zhang K B,Fu Z Y,Zhang J Y,et al.Annealing on the structure and properties evolution of the CoCrFeNiCuAl high-entropy alloy[J].Journal of Alloys and Compounds,2010,502(2):295-299.
• [4] Gludovatz B,Hohenwarter A,Catoor D,et al.A fracture-resistant high-entropy alloy for cryogenic applications[J].Science,2014,345(6201):1153-1158.
• [5] Wang W R,Wang W L,Yeh J W.Phases,microstructure and mechanical properties of AlxCoCrFeNi high-entropy alloys at elevated temperatures[J].Journal of Alloys and Compounds,2014,589(9):143-152.
• [6] Butler T M,Weaver M L.Oxidation behavior of arc melted AlCoCrFeNi multi-component high-entropy alloys[J].Journal of Alloys and Compounds,2016,674:229-244.
• [7] Ji X L,Duan H,Zhang H,et al.Slurry erosion resistance of laser clad NiCoCrFeAl3 high-entropy alloy coatings[J].Tribology Transactions,2015,58(6):1119-1123.
• [8] Chen Y Y,Hong U T,Shin H C,et al.Electrochemical kinetics of the high entropy alloys in aqueous environments-a comparison with type 304 stainless steel[J].Corrosion Science,2005,47(11):2679-2699.
• [9] Yu Y,Liu W M,Zhang T B,et al.Microstructure and tribological properties of AlCoCrFeNiTi0.5 high-entropy alloy in hydrogen peroxide solution[J].Metallurgical and Materials Transactions A,2014,45(1):201-207.
• [10] Hsu C Y,Yeh J W,Chen S K,et al.Wear resistance and high-temperature compression strength of Fcc CuCoNiCrAl0.5Fe alloy with boron addition[J].Metallurgical and Materials Transactions A,2004,35:1465-1469.
• [11] Ye Y F,Wang Q,Lu J,et al.High-entropy alloy:challenges and prospects[J].Materials Today,2015,19(6):349-362.
• [12] Lu Z P,Wang H,Chen M W,et al.An assessment on the future development of high-entropy alloys:Summary from a recent workshop[J].Intermetallics,2015,66:67-76.
• [13] Li J H,Tsai M H.Theories for predicting simple solid solution high-entropy alloys:Classification,accuracy,and important factors impacting accuracy[J].Scripta Materialia,2020,188:80-87.
• [14] Ren M X,Li B S,Fu H Z.Formation condition of solid solution type high-entropy alloy[J].Transactions of Nonferrous Metals Society of China,2013,23(4):991-995.
• [15] Tong C J,Chen Y L,Yeh J W,et al.Microstructure characterization of AlxCoCrCuFeNi high-entropy alloy system with multiprincipal elements[J].Metallurgical and Materials Transactions A,2005,36:881-893.
• [16] Laplanche G,Horst O,Otto F,et al.Microstructural evolution of a CoCrFeMnNi high-entropy alloy after swaging and annealing[J].Journal of Alloys and Compounds,2015,647:548-557.
• [17] Park J M,Moon J,Bae J W,et al.Effect of annealing heat treatment on microstructural evolution and tensile behavior of Al0.5CoCrFeMnNi high-entropy alloy[J].Materials Science and Engineering A,2018,728:251-258.
• [18] Liu Q,Wang G F,Sui X C,et al.Ultra-fine grain TixVNbMoTa refractory high-entropy alloys with superior mechanical properties fabricated by powder metallurgy[J].Journal of Alloys and Compounds,2021,865:158592.
• [19] Han Z D,Luan H W,Liu X,et al.Microstructures and mechanical properties of TixNbMoTaW refractory high entropy alloys[J].Materials Science and Engineering A,2018,712:380-385.
• [20] Kukshal V,Patnaik A,Bhat I K.Corrosion and thermal behaviour of AlCr1.5CuFeNi2Tix high-entropy alloys[J].Materials Today-Proceedings,2018,5(9):17073-17079.
• [21] Chen Y H,Liu W K,Wang H W,et al.Effect of Ti content on the microstructure and properties of CoCrFeNiMnTix high entropy alloy[J].Entropy,2022,24(2):241.
• [22] Mishra R S,Haridas R S,Agrawal P.High entropy alloys-tunability of deformation mechanisms through integration of compositional and microstructural domains[J].Materials Science and Engineering A,2021,812:141085.
• [23] Yao M J,Pradeep K G,Tasan C C,et al.A novel,single phase,non-equiatomic FeMnNiCoCr high-entropy alloy with exceptional phase stability and tensile ductility[J].Scripta Mater,2014,72-73:5-8.
• [24] Tasan C C,Deng Y,Pradeep K G,et al.Composition dependence of phase stability,deformation mechanisms,and mechanical properties of the CoCrFeMnNi high-entropy alloy system[J].JOM,2014,66(10):1993-2001.
• [25] Karimi A,Azcoitia C H,Degauque J.Relationships between magnetomechanical damping and magnetic properties of Fe-Cr(Al,Mo) alloys[J].Journal of Magnetism and Magnetic Materials,2000,215:601-603.
• [26] Pulino-Sagradi D,Sagradi M,Karimi A,et al.Damping capacity of Fe-Cr-X high-damping alloys and its dependence on magnetic domain structure[J].Scripta materialia,1998,39:131-138.
• [27] Cao L G,Wang X H,Wang Y M,et al.Microstructural evolution,phase formation and mechanical properties of multi-component AlCoCrFeNix alloys[J].Applied Physics A,2019,125(10):699.
• [28] Bracq G,Laurent-Brocq M,Perriere L,et al.The fcc solid solution stability in the Co-Cr-Fe-Mn-Ni multi-component system[J].Acta Materialia,2017,128:327-336.
• [29] 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(1):57-64.
• [30] Ji W,Wang W M,Wang H,et al.Alloying behavior and novel properties of CoCrFeNiMn high-entropy alloy fabricated by mechanical alloying and spark plasma sintering[J].Intermetallics,2015,56:24-27.
• [31] Ji W,Fu Z Y,Wang W M,et al.Mechanical alloying synthesis and spark plasma sintering consolidation of CoCrFeNiAl high-entropy alloy[J].Journal of Alloys and Compounds,2014,589:61-66.
• [32] Chen W P,Fu Z Q,Fang S C,et al.Alloying behavior,microstructure and mechanical properties in a FeNiCrCo0.3Al0.7 high entropy alloy[J].Materials & Design,2013,51:854-860.
• [33] Fang S C,Chen W P,Fu Z Q,et al.Microstructure and mechanical properties of twinned Al0.5CrFeNiCo0.3C0.2 high entropy alloy processed by mechanical alloying and spark plasma sintering[J].Materials & Design,2014,54:973-979.
• [34] Pohan R M,Gwalani B,Lee J,et al.Microstructures and mechanical properties of mechanically alloyed and spark plasma sintered Al0.3CoCrFeMnNi high entropy alloy[J].Materials Chemistry and Physics,2018,210:62-70.
• [35] Torabizadeh A,Toroghinejad M R,Karimzadeh F,et al.Microstructure and mechanical properties of nanostructured CoCrFeMoTi high-entropy alloy fabricated by mechanical alloying and spark plasma sintering[J].Journal of Materials Engineering and Performance,2019,28(12):7710-7725.
• [36] Yang Q M,Tang Y Y,Wen Y,et al.Microstructures and properties of CoCrCuFeNiMox high-entropy alloys fabricated by mechanical alloying and spark plasma sintering[J].Powder Metallurgy,2018,61(2):115-122.
• [37] Cai B,Liu B,Kabra S,et al.Deformation mechanisms of Mo alloyed FeCoCrNi high entropy alloy:In situ neutron diffraction[J].Acta Materialia,2017,127:471-480.
• [38] Sha M H,Zhang L,Zhang J W,et al.Effects of annealing on the microstructure and wear resistance of AlCoCrFeNiTi0.5 high-entropy alloy coating prepared by laser cladding[J].Rare Metal Materials and Engineering,2017,46(5):1237-1240.

文章评论(Comment)：