The article investigated the effect of V and Si on the microstructure, thermodynamics and compressive properties of Al0.5CoCrCuFeNi high-entropy alloy (HEA). Four Al0.5CoCrCuFeNi-X(X = V, Si, VSi) HEAs were prepared by vacuum arc melting. With the addition of V and Si, the microstructure of the Al0.5CoCrCuFeNi HEA changes from FCC to FCC + BCC. The (Ω, δ)-values of the four HEAs meet the formation condition of solid solution. Their VEC-values in the range of [6.87–8] explain the reason for FCC and FCC + BCC formation in the four HEAs. The V and Si elements greatly improve the hardness of the three HEAs. The fracture mechanisms of X = V, Si, VSi HEAs are the composite fracture, quasi-cleavage fracture and purely brittle cleavage fracture, respectively.
YehJ-WChenS-KLinS-JNanostructured high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes. Adv Eng Mater. 2004; 6(5):299–303.
2.
LozinkoAGholizadehRZhangYEvolution of microstructure and mechanical properties during annealing of heavily rolled AlCoCrFeNi2.1 eutectic high-entropy alloy. Mater Sci Eng A. 2022; 833:142558.
3.
YuD-MHeC-YZhaoS-SA novel multilayer high temperature solar absorber coating based on high-entropy alloy NbMoTaW: optical properties, thermal stability and corrosion properties. J Materiomics. 2021; 7(5):895–903.
4.
MorrisDYaoYFinfrockYZComposition-dependent structure and properties of 5- and 15-element high-entropy alloy nanoparticles. Cell Rep Phys Sci. 2021; 2(11):100641.
5.
MeghwalAAnupamALuzinVMultiscale mechanical performance and corrosion behaviour of plasma sprayed AlCoCrFeNi high-entropy alloy coatings. J Alloys Compd. 2021; 854:157140.
6.
RongHJinghongDZhangYJiQZhangRChenJ.Microstructure and corrosion properties of AlxCuFeNiCoCr(x = 0.5, 1.0, 1.5, 2.0) high entropy alloys with Al content. J Alloy Compd. 2022; 921(15):165455.
7.
WangCYuJZhangYPhase evolution and solidification cracking sensibility in laser remelting treatment of the plasma-sprayed CrMnFeCoNi high entropy alloy coating. Mater Des. 2019; 182:108040.
8.
CantorBChangITHKnightPMicrostructural development in equiatomic multicomponent alloys. Mater Sci Eng A. 2004; 375-377:213–218.
9.
ÖztürkSAlptekinFÖnalcSEffect of titanium addition on the corrosion behavior of CoCuFeNiMn high entropy alloy. J Alloys Compd. 2022; 903:163867.
10.
SunZHZhangJXinGXTensile mechanical properties of CoCrFeNiTiAl high entropy alloy via molecular dynamics simulations. Intermetallics. 2022; 142:107444.
11.
JiangSWangHWuYUltrastrong steel via minimal lattice misfit and high-density nanoprecipitation. Nature. 2017; 544(7651):460–464.
12.
GludovatzBHohenwarterACatoorDA fracture-resistant high-entropy alloy for cryogenic applications. Science. 2014; 345(6201):1153–1158.
13.
SünbülSEİçinKŞerenFZDetermination of structural, tribological, isothermal oxidation and corrosion properties of Al–Co–Cr–Fe–Ni–Ti–Cu high-entropy alloy. Vacuum. 2021; 187:110072.
14.
ChenQ-XLiD-MWuYPreparation and properties of a bulk metallic glass and high-entropy alloy composite. Mater Sci Eng A. 2022; 831:142342.
15.
XuXDChenSYRenYTemperature-dependent compression behavior of an Al0.5CoCrCuFeNi high-entropy alloy. Materialia. 2019; 5:100243.
16.
ChenSLiWXieXNanoscale serration and creep characteristics of Al0.5CoCrCuFeNi high-entropy alloys. J Alloys Compd. 2018; 752:464–475.
17.
YuLChenSRenJPlasticity performance of Al0.5CoCrCuFeNi high-entropy alloys under nanoindentation. J Iron Steel Res Int. 2017; 24(4):390–396.
18.
XiaotaoLWenbinLLiuJuanMEffect of boron on the microstructure, phase assemblage and wear properties of Al0.5CoCrCuFeNi high-entropy alloy. Sci Rep. 2016; 45(9):2201–2207.
19.
TsaiCWTsaiMHTsaiKYMicrostructure and tensile properties of Al0.5CoCrCuFeNi alloys produced by simple rolling and annealing. Mater Sci Tech. 2015; 31(10):1178–1183.
20.
NgCGuoSLuanJEntropy-driven phase stability and slow diffusion kinetics in an Al0.5CoCrCuFeNi high entropy alloy. Intermetallics. 2012; 31:165–172.
21.
HemphillMAYuanTWangGYFatigue behavior of Al0.5CoCrCuFeNi high entropy alloys. Acta Mater. 2012; 60(16):5723–5734.
22.
DuYLuYWangTEffect of electromagnetic stirring on microstructure and properties of Al0.5CoCrCuFeNi alloy. Procedia Eng. 2012; 27:1129–1134.
23.
TsaiC-WTsaiM-HYehJ-WEffect of temperature on mechanical properties of Al0.5CoCrCuFeNi wrought alloy. J Alloys Compd. 2010; 490(1-2):160–165.
24.
TsaiC-WChenY-LTsaiM-HDeformation and annealing behaviors of high-entropy alloy Al0.5CoCrCuFeNi. J Alloys Compd. 2009; 486(1-2):427–435.
25.
LeeCPChenYYHsuCYThe effect of boron on the corrosion resistance of the high entropy alloys Al[sub 0.5]CoCrCuFeNiB[sub x]. J Electrochem Soc. 2007; 154(8):C424.
26.
ChoiW-MKimJ-SKoW-SComputational design of V-CoCrFeMnNi high-entropy alloys: an atomistic simulation study. Calphad. 2021; 74:102317.
27.
YinBMarescaFCurtinWA.Vanadium is an optimal element for strengthening in both fcc and bcc high-entropy alloys. Acta Mater. 2020; 188(15):486–491.
28.
DongYZhouKLuYEffect of vanadium addition on the microstructure and properties of AlCoCrFeNi high entropy alloy. Mater Des. 2014; 57:67–72.
29.
ErdoganASunbulSEIcinKMicrostructure, wear and oxidation behavior of AlCrFeNiX (X = Cu, Si, Co) high entropy alloys produced by powder metallurgy. Vacuum. 2021; 197:110143.
30.
KumarADhekneaPSwarnakarAKAnalysis of Si addition on phase formation in AlCoCrCuFeNiSix high entropy alloys. Mater Lett. 2017; 188:73–76.
31.
JinBZhangNGuanSMicrostructure and properties of laser re-melting FeCoCrNiAl0.5Six high-entropy alloy coatings. Surf Coat Technol. 2018; 349(15):867–873.
32.
WangZWangXYueHMicrostructure, thermodynamics and compressive properties of AlCoCrCuMn-x (x = Fe, Ti) high-entropy alloys. Mat Sci Eng A. 2015; 627:391–398.
33.
WangXRWangZQLinTSMicrostructure, thermodynamics and compressive properties of AlCrCuNiZrx(x = 0,1) high-entropy alloys. Mater Sci Technol. 2016; 32(12):1289–1295.
34.
WangXRHePLinTSMicrostructure, thermodynamics and compressive properties of AlCrCuNixTi (x = 0, 1) high entropy alloys. Mater Sci Tech. 2015; 31(15):1842–1849.
35.
TakeuchiAInoueA.Classification of bulk metallic glasses by atomic size difference heat of mixing and period of constituent elements and its application to characterization of the main alloying element. Mater Trans. 2005; 46(12):2817–2829.
36.
WangX-RWangZ-QHePMicrostructure, thermodynamics, and compressive properties of AlCrCuNixTi (x=0,1) high entropy alloys. Mater Sci Technol. DOI:10.1179/1743284715Y.0000000101.
37.
TakeuchiAInoueA.Classification of bulk metallic glasses by atomic size difference, heat of mixing and period of constituent elements and its application to characterization of the main alloying element. Mater Trans. 2005; 46:2817–2829.
38.
YangXZhangY.Prediction of high-entropy stabilized solid-solution in multi-component alloys. Mater Chem Phys. 2012; 132(2–3):233–238.
39.
FangSXiaoXXiaLRelationship between the widths of supercooled liquid regions and bond parameters of Mg-based bulk metallic glasses. J Non-Cryst Solids. 2003; 321(1–2):120–125.
40.
GuoSLiuCT.Phase stability in high entropy alloys: formation of solid-solution phase or amorphous phase. Prog Nat Sci Mater Int. 2011; 21(6):433–446.
41.
SinghAKSubramaniamA.On the formation of disordered solid solutions in multi-component alloys. J Alloys Compd. 2014; 587:113–119.
42.
GuoSNgCLuJEffect of valence electron concentration on stability of fcc or bcc phase in high entropy alloys. J Appl Phys. 2011; 109(10):103505.
