1 College of Materials and Metallurgy, Guizhou University, Guiyang 550025 2 Guizhou Province Key Laboratory of Materials Structure and Strength, Guiyang 550025
High-entropy alloys, one of the three breakthroughs of metallic materials field in recent years, dash out the cage of traditional design concept about alloys, and could produce alloy materials with high strength, excellent wear resistance and anti-corrosion in proper proportion. The four elements of Fe, Co, Cr, Ni have been widely applied in the high-entropy alloys systems and gained a number of outstanding achievements. This paper demonstrate the feature of structures and transitions in CoCrFeNi-M high-entropy alloy systems. Furthermore, the effect of alloying elements on as-cast high-entropy alloys are illustrated, the heat treatment processes of high-entropy alloys are discussed. Finally, the current research status and existing problems of high entropy alloys are summarized.
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.
[2]
Tong C J, Chen M R, Yeh J W , et al. Mechanical performance of the AlxCoCrCuFeNi high-entropy alloy system with multiprincipal elements[J]. Metallurgical and Materials Transactions A, 2005,36(5):1263.
[3]
Tsai M H, Yeh J W . High-entropy alloys: A critical review[J]. Materials Research Letters, 2014,2(3):107.
[4]
Liu L . Effect of alloying elements on microstructure and mechanical properties of high entropy alloys[D]. Changchun: Jilin University, 2012(in Chinese).
[4]
刘亮 . 合金元素对高熵合金组织与性能的影响[D]. 长春:吉林大学, 2012.
[5]
Miracle D B, Senkov O N . A critical review of high entropy alloys and related concepts[J]. Acta Materialia, 2016,122:448.
[6]
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.
[7]
Lee C P, Chang C C, Chen Y Y , et al. Effect of the aluminium content of AlxCrFe1.5MnNi0.5 high-entropy alloys on the corrosion behavior in aqueous environments[J]. Corrosion Science, 2008,50:2053.
[8]
Wang Y F, Yang H Y . Evolution of microstructure of AlCoCrFeNiTi0.5 high-entropy alloys in the process of solidification[J].Rare Metal Materials and Engineering, 2014(10):2459(in Chinese).
Wang X F, Zhang Y, Qiao Y , et al. Novel microstructure and properties of multicomponent CoCrCuFeNiTix alloys[J]. Intermetallics, 2007,15(3):357.
[10]
Zhang L, , Preparation of high entropy alloys and their structure and properties[D]. Changchun: Jilin University, 2012(in Chinese).
[10]
张力 . 高熵合金的制备及组织与性能[D]. 长春:吉林大学, 2007.
[11]
Dong Y, , Fundamental study on microstructure and mechanical properties in multi-phase Al-Cr-Fe-Ni-M high entropy alloys[D]. Dalian: Dalian University of Technology, 2016(in Chinese).
CantorB, Chang I T H, Knight P, et al.Microstructural development in equiatomic multicomponent alloys[J].Materials Science and Engineering A , 2004, 375-377:213.
[13]
VaralakshmiS, Kamaraj M, Murty B S . Synjournal and characterization of nanocrystalline AlFeTiCrZnCu high entropy solid solution by mechanical alloying[J]. Journal of Alloys and Compounds, 2008,460(1-2):253.
[14]
SenkovO N, Wilks G B, Scott J M , et al. Mechanical properties of Nb25Mo25Ta25W25 and V20Nb20Mo20Ta20W20 refractory high entropy alloys[J]. Intermetallics, 2011,19(5):698.
[15]
YaoH W, Qiao J W, Hawk J A , et al. Mechanical properties of refractory high-entropy alloys: Experiments and modeling[J]. Journal of Alloys and Compounds, 2016,696:1139.
[16]
LuY, Dong Y, Guo S , et al. A promising new class of high-temperature alloys: Eutectic high-entropy alloys[J]. Scientific Reports, 2014,4:6200.
[17]
JiangL. Microstructure evolution and mechanical properties of CoFeNiV(Mo, Nb) high entropy alloys[D]. Dalian: Dalian University of Technology, 2016(in Chinese).
LuY, 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.
[19]
LiuJ, Chen C, Xu Y , et al. Deformation twinning behaviors of the low stacking fault energy high-entropy alloy: An in-situ, TEM study[J]. ScriptaMaterialia, 2017,137:9.
[20]
ZhaoR F, Li H J, Ren B , et al. Microstructure and properties of AlCrMnMoNiZrB0.1 high entropy alloys prepared by powder metallurgy process Special Casting and Nonferrous Alloys, 2013,33(3):288(in Chinese).
ZhangS F, Yang X, Zhang Y . Processing and properties of AlCrCuFeNi single crystal high entropy alloy Acta Metallurgical Sinica, 2013,49(11):1473(in Chinese).
YaoC Z, Zhang P, Liu M , et al. Electrochemical preparation and magnetic study of Bi-Fe-Co-Ni-Mn high entropy alloy[J]. Electrochimica Acta, 2008,53(28):8359.
[23]
LaiC H, Lin S J, Yeh J W , et al. Preparation and characterization of AlCrTaTiZr multi-element nitride coatings[J]. Surface and Coatings Technology, 2006,201(6):3275.
[24]
FuZ, Chen W, Fang S , et al. Alloying behavior and deformation twinning in a CoNiFeCrAl0.6Ti0.4 high entropy alloy processed by spark plasma sintering[J]. Journal of Alloys and Compounds, 2013,553(3):316.
[25]
NiuX L, Wang L J, Sun D . Research on corrosion resistance of Al-Fe-Co-Cr-Ni-Cu high-entropy alloy coating by electron beam evaporation plating Journal of Dalian University of Technology, 2013,53(5):689(in Chinese).
HaaseC, Tang F, Wilms M B , et al. Combining thermodynamic modeling and 3D printing of elemental powder blends for high-throughput investigation of high-entropy alloys—Towards rapid alloy screening and design[J]. Materials Science and Engineering A, 2017,688:180.
[28]
ZhangY, Zuo T T, Tang Z , et al. Microstructures and properties of high-entropy alloys[J]. Progress in Materials Science, 2014,61(8):1.
[29]
TsaiK Y, Tsai M H, Yeh J W . Sluggish diffusion in Co-Cr-Fe-Mn-Ni high-entropy alloys[J]. Acta Materialia, 2013,61(13):4887.
[30]
ShunT T, Hung C H, Lee C F . The effects of secondary elemental Mo or Ti addition in Al0.3CoCrFeNi high-entropy alloy on age hardening at 700 ℃[J]. Journal of Alloys and Compounds, 2010,495(1):55.
[31]
WuY D, Cai Y H, Chen X H , et al. Phase composition and solid solution strengthening effect in TiZrNbMoV high-entropy alloys[J]. Materials and Design, 2015,83:651.
[32]
QiuX W, Zhang Y P, He L , et al. Microstructure and corrosion resistance of AlCrFeCuCo high entropy alloy[J]. Journal of Alloys and Compounds, 2013,549(2):195.
[33]
MaD, Yao M, Pradeep K G , et al. Phase stability of non-equiatomicCoCrFeMnNi high entropy alloys[J]. Acta Materialia, 2015,98:288.
[34]
TakeuchiA, Amiya K, Wada T , et al. Dual HCP structures formed in senaryScYLaTiZrHf multi-principal-element alloy[J]. Inter-metallics, 2016,69:103.
[35]
ZhaoY J, Qiao J W, Ma S G , et al. A hexagonal close-packed high-entropy alloy:The effect of entropy[J]. Materials and Design, 2016,96:10.
[36]
FuZ, Chen W, Wen H , et al. Microstructure and strengthening mechanisms in an FCC structured single-phase nanocrystalline Co25Ni25Fe25Al7.5Cu17.5 high-entropy alloy[J]. Acta Materialia, 2016,107:59.
[37]
TongC 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(4):881.
[38]
YuP F, Cheng H, Zhang L J , et al. Nanotwin’s formation and growth in an AlCoCuFeNi high-entropy alloy[J]. ScriptaMaterialia, 2016,114:31.
[39]
GuoS, Ng C, Lu J , et al. Effect of valence electron concentration on stability of fcc or bcc phase in high entropy alloys[J]. Journal of Applied Physics, 2011,109(10):645.
[40]
RenM X, Li B S , Phase analysis of CrFeCoNiCu high entropy alloy[J].Materials Engineering, 2012(1):9(in Chinese).
WangW 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.
[43]
MaS G, Zhang Y . Effect of Nb addition on the microstructure and properties of AlCoCrFeNi high-entropy alloy[J]. Materials Science and Engineering A, 2012,532(1):480.
[44]
StepanovN D, Yurchenko N Y, Tikhonovsky M A , et al. Effect of carbon content and annealing on structure and hardness of the CoCrFeNiMn-based high entropy alloys[J]. Journal of Alloys and Compounds, 2016,687:59.
[45]
LiuJ D . Microstructure and mechanism of in-situ synthesis of reinforcing phase in TiC/AlCrFeNi-M high-entropy alloy based composites[D]. Harbin:Harbin Institute of Technology, 2012(in Chinese).
LiA M, Zhang X Y, Liu L L , et al. Effect of annealing on microstructure and properties of AlCrFeCoNiCu high-entropy alloy Materials for Mechanical Engineering, 2012,36(7):14(in Chinese).
LiW, Liu G Z, Guo J J . Microstructure and electrochemical properties of AlFeCuCoNiCrTix high entropy alloys Special Casting and Nonferrous Alloys, 2009,29(10):941(in Chinese).
PickeringE J, Mu?oz-Moreno R, Stone H J , et al. Precipitation in the equiatomic high-entropy alloy CrMnFeCoNi[J]. ScriptaMaterialia, 2016,113:106.
[49]
PickeringE J, Stone H J, Jones N G . Fine-scale precipitation in the high-entropy alloy Al0.5CrFeCoNiCu[J]. Materials Science and Engineering A, 2015,645:65.
[50]
WengZ Q, Dong G, Zhang Q L , et al. Effect of annealing on microstructure and properties of FeCrNiCoMn high-entropy alloy coating prepared by Laser cladding Chinese Journal of Laser, 2014,41(3):59(in Chinese).
AnXulong, Liu Qibin, Zheng Bo . Microstructure and properties of laser cladding high entropy alloy MoFeCrTiWAlxSiy coating Infrared and Laser Engineering, 2014,43(4):1140.
Zhouu Fang, Liu Qibin, Zheng Bo . Effect of silicon and aluminum on microstructure and properties of laser cladding MoFeCrTiW high-entropy alloy coating High Power Laser and Particle Beams, 2015,27(11):266.