Research progress of high strength and toughness eutectic high entropy alloys

doi:10.13251/j.issn.0254-6051.2021.02.001

Abstract

Abstract: Eutectic high entropy alloys possess many excellent characteristics that traditional alloys cannot compare, such as high hardness, high corrosion resistance, high wear resistance, excellent casting property, excellent oxidation resistance and magnetic properties, so it is a breakthrough of alloy design in the field of traditional physical metallurgy, and it opens up a new platform for the exploration of new materials and new properties. Currently, many eutectic high entropy alloys with unique properties have been designed, however, the properties and design ideas of eutectic high entropy alloys are still lacking in macroscopic understanding. In this review article, the design methods of eutectic high entropy alloys (including the experimental method, the substitution method, the pseudo-binary method, and the CALPHAD method) were reviewed, the advantages and weaknesses of each method were further compared and analyzed. Subsequently, comprehensive effects of structural characteristics and thermo-mechanical processing on microstructure and mechanical properties of the eutectic high entropy alloys were analyzed. The possible problems in the design process of eutectic high entropy alloys were summarized and the future research direction was prospected.

Key words: eutectic high entropy alloys, design method, structure characteristics, thermo-mechanical processing

CLC Number:

TG139

Yang Tian, Xu Junfeng, Li Zhuo. Research progress of high strength and toughness eutectic high entropy alloys[J]. Heat Treatment of Metals, 2021, 46(2): 1-7.

References

[1] Tung C C,Yeh J W,Shun T T,et al.On the elemental effect of AlCoCrCuFeNi high-entropy alloy system[J].Materials Letters,2007,61(1):1-5.
[2] Guo J T.Ordered Intermetallic Compound NiAl Alloy[M].Beijing:Science Press,2003.
[3] Sauthoff G.Multiphase intermetallic alloys for structural applications[J].Intermetallics,2000,8(11):1101-1109.
[4] Cantor B,Knight P.Microstructural development in equiatomic multicomponent alloys[J].Materials Science and Engineering A,2004,6(5):213-218.
[5] 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.
[6] 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.
[7] Hemphill M,Yuan T,Wang G,et al.Fatigue behavior of Al_0.5CoCrCuFeNi high entropy alloys[J].Acta Materialia,2012,60(16):5723-5734.
[8] 翟逸玥,寇生中,杨慧妮.Al_xCrFeNiMn高熵合金的组织和性能[J].金属热处理,2019,44(7):144-149.
Zhai Yiyue,Kou Shengzhong,Yang Huini.Microstructure and properties of Al_xCrFeNiMn high entropy alloys[J].Heat Treatment of Metals,2019,44(7):144-149.
[9] Chuang M,Tsai M,Wang W,et al.Microstructure and wear behavior of Al_xCo_1.5CrFeNi_1.5Ti_y high-entropy alloys[J].Acta Materialia,2011,59:6308-6317.
[10] Senkov O N,Senkova S V,Dimiduk D M,et al.Oxidation behavior of a refractory NbCrMo_0.5Ta_0.5TiZr alloy[J].Journal of Materials Science,2012,47(18):6522-6534.
[11] Wang F,Zhang Y,Chen G,et al.Tensile and compressive mechanical behavior of a CoCrCuFeNiAl_0.5 high entropy alloy[J].International Journal of Modern Physics B,2009,23:1254-1259.
[12] Senkov O N,Wilks G B,Miracle D B,et al.Refractory high-entropy alloys[J].Intermetallics,2010,18(9):1758-1765.
[13] 何绍付,李青春,赵帅,等.原位观察共晶硅对Al-20%Si合金裂纹形成与扩展的影响[J].金属热处理,2020,45(6):194-197.
He Shaofu,Li Qingchun,Zhao Shuai,et al.Effect of eutectic silicon on crack formation and propagation of Al-20%Si alloy by in-situ observation[J].Heat Treatment of Metals,2020,45(6):194-197.
[14] Song C,Wang S,Liu J,et al.Microstructure and mechanical properties of Al₂O₃/Er₃Al₅O₁₂ binary eutectic ceramic prepared by bridgman method[J].Materials,2018,11(4):534.
[15] Guo S,Ng C,Liu C.Anomalous solidification microstructures in Co-free Al_xCrCuFeNi₂ high-entropy alloys[J].Journal of Alloys and Compounds,2013,557:77-81.
[16] Lu Y P,Dong Y,Guo S,et al.A promising new class of high-temperature alloys:Eutectic high-entropy alloys[J].Scientific Reports,2014(4):1-5.
[17] Lu Y P,Jiang H,Guo S,et al.A new strategy to design eutectic high-entropy alloys using mixing enthalpy[J].Intermetallics,2017,91:124-128.
[18] Jiang H,Han K,Gao X,et al.A new strategy to design eutectic high-entropy alloys using simple mixture method[J].Materials and Design,2018,142:101-105.
[19] Shafiei A.The design of eutectic high entropy alloys in Al-Co-Cr-Fe-Ni system[J].Metals and Materials International,2020,36:582.
[20] He F,Wang Z J,Cheng P,et al.Designing eutectic high entropy alloys of CoCrFeNiNb_x[J].Journal of Alloys and Compounds,2016,656:284-289.
[21] Jin X,Zhou Y,Zhang L,et al.A new pseudo binary strategy to design eutectic high entropy alloys using mixing enthalpy and valence electron concentration[J].Materials and Design,2018,143:49-55.
[22] Wu M,Wang S,Huang H,et al.CALPHAD aided eutectic high-entropy alloy design[J].Materials Letters,2020,262:127-135.
[23] Jain R,Rahul M,Samal S,et al.Hot workability of Co-Fe-Mn-Ni-Ti eutectic high entropy alloy[J].Journal of Alloys and Compounds,2020,822:153-159.
[24] 曹雷刚,朱琳,张磊磊,等.快速凝固AlCoCrFeNi_2.1共晶高熵合金的微观组织演变和力学性能[J].材料研究学报,2019,33(9):650-658.
Cao Leigang,Zhu Lin,Zhang Leilei,et al.Microstructure evolution and mechanical properties of rapid solidified AlCoCrFeNi_2.1 eutectic high entropy alloy[J].Chinese Journal of Materials Research,2019,33(9):650-658.
[25] Jin X,Zhou Y,Zhang L,et al.A novel Fe₂₀Co₂₀Ni₄₁Al₁₉ eutectic high entropy alloy with excellent tensile properties[J].Materials Letters,2018,216:144-146.
[26] Lu Y,Gao X,Jiang L,et al.Directly cast bulk eutectic and near-eutectic high entropy alloys with balanced strength and ductility in a wide temperature range[J].Acta Materialia,2017,124:143-150.
[27] Dong Y,Yao Z,Huang X,et al.Microstructure and mechanical properties of AlCo_xCrFeNi_3-x eutectic high-entropy-alloy system[J].Journal of Alloys and Compounds,2020,823:153-160.
[28] He F,Wang Z,Shang X,et al.Stability of lamellar structures in CoCrFeNiNb_x eutectic high entropy alloys at elevated temperatures[J].Materials and Design,2016,104:259-264.
[29] Jiang L,Lu Y P,Dong Y,et al.Effects of Nb addition on structural evolution and properties of the CoFeNi₂V_0.5 high-entropy alloy[J].Applied Physics A,2015,119(1):291-297.
[30] Jiang L,Lu Y P,Wu W,et al.Microstructure and mechanical properties of a CoFeNi₂V_0.5Nb_0.75 eutectic high entropy alloy in as-cast and heat-treated conditions[J].Journal of Materials Science and Technology,2016,32(3):245-250.
[31] Lu Y P,Jiang H,Guo S,et al.A new strategy to design eutectic high-entropy alloys using mixing enthalpy[J].Intermetallics,2017,91:124-128.
[32] Chanda B,Das J.An assessment on the stability of the eutectic phases in high entropy alloys[J].Journal of Alloys and Compounds,2019,798(25):167-173.
[33] Chen X,Qi Q,Sui Y,et al.Effects of aluminum on microstructure and compressive properties of Al-Cr-Fe-Ni eutectic multi-component alloys[J].Materials Science and Engineering A,2017,681:24-31.
[34] Jiang H,Zhang H Z,Huang T D,et al.Microstructures and mechanical properties of Co₂Mo_xNi₂VW_x eutectic high entropy alloys[J].Materials and Design,2016,109:539-546.
[35] Samal S,Rahul M,Kottada R,et al.Hot deformation behaviour and processing map of Co-Cu-Fe-Ni-Ti eutectic high entropy alloy[J].Materials Science and Engineering A,2016,664:227-235.
[36] Rahul R,Samal S,Venugopal S,et al.Experimental and finite element simulation studies on hot deformation behaviour of AlCoCrFeNi_2.1 eutectic high entropy alloy[J].Journal of Alloys and Compounds,2018,749:1115-1127.
[37] Dong Y,Jiang L,Jiang H,et al.Effects of annealing treatment on microstructure and hardness of bulk AlCrFeNiMo_0.2 eutectic high-entropy alloy[J].Materials and Design,2015,82:91-97.
[38] Wani I,Bhattacharjee T,Sheikh S,et al.Ultrafine-grained AlCoCrFeNi_2.1 eutectic high-entropy alloy[J].Materials Research Letters,2016(4):174-179.
[39] Bhattacharjee T,Sheikh S.Tailoring nanostructures and mechanical properties of AlCoCrFeNi_2.1 eutectic high entropy alloy using thermo-mechanical processing[J].Materials Science and Engineering A,2016,675:99-109.
[40] Rogal L,Morgiel J,Swiatek Z,et al.Microstructure and mechanical properties of the new Nb₂₅Sc₂₅Ti₂₅Zr₂₅ eutectic high entropy alloy[J].Materials Science and Engineering A,2016,651:590-597.
[41] Jin X,Liang Y,Bi J,et al.Enhanced strength and ductility of Al_0.9CoCrNi_2.1 eutectic high entropy alloy by thermomechanical processing[J].Materialia,2020,10:121-136.
[42] Patel A,Wani I,Reddy S R,et al.Strain-path controlled microstructure,texture and hardness evolution in cryo-deformed AlCoCrFeNi_2.1 eutectic high entropy alloy[J].Intermetallics,2018,97:12-21.
[43] Zhao J,Jiang Z.Thermomechanical processing of advanced high strength steels[J].Progress in Materials Science,2018,94:174-242.
[44] Murty S,Narayana N,Niraj K,et al.Microstructure texture mechanical properties relationship in multi-pass warm rolled Ti-6Al-4V alloy[J].Materials Science and Engineering A,2014,589:174-181.
[45] Reddy S R,Yoshida S,Sunkari U,et al.Engineering heterogeneous microstructure by severe warm-rolling for enhancing strength-ductility synergy in eutectic high entropy alloys[J].Materials Science and Engineering A,2019,764:138-146.