To improve anti-corrosion and wear resistance, a new kind of Fe5Cr5SiTiCoNbMoW high-entropy alloy (HEA) coating was fabricated successfully on Q235 by laser cladding technology. The microstructure, phase structure, microhardness, anti-corrosion and wear resistance were researched using metallographic microscope, scanning electron microscope, X-ray diffraction, microhardness tester, electrochemical workstation as well as friction and wear testing machine, respectively. The experimental results show that the microstructure of cladding coating is composed of dendrite and eutectic crystal. The main phase in the coating is single body-centered cubic solid solution. The anti-corrosion of HEA coating is better than that of 304 stainless steel in NaCl solution. Moreover, the average microhardness of HEA coating is nearly 600 HV0.2, which is almost five times higher than that of Q235 substrate. The HEA coating is of low friction coefficient and mass loss, exhibiting excellent wear resistance.
ZhangY, ZuoTT, TangZ, GaoMC, DahmenKA, LiawPK, LuZP.Microstructures and properties of high-entropy alloys. Prog Mater Sci. 2014;61(8):1–93. doi: 10.1016/j.pmatsci.2013.10.001
2.
HuangYS, ChenL, LuiHW, CaiMH, YehJW.Microstructure, hardness, resistivity and thermal stability of sputtered oxide films of AlCoCrCu0.5NiFe high-entropy alloy. Mater Sci Eng A. 2007;457(1–2):77–83. doi: 10.1016/j.msea.2006.12.001
3.
YuY, LiuWM, ZhangTB, LiJS, WangJ, KouHC.Microstructure and tribological properties of AlCoCrFeNiTi0.5 high-entropy alloy in hydrogen peroxide solution. Metall Mater Trans A. 2014;45(1):201–207. doi: 10.1007/s11661-013-1982-6
4.
DiaoH, SantodonatoLJ, TangZ, EgamiT, LiawPK.Local structures of high-entropy alloys (HEAs) on atomic scales: an overview. JOM. 2015;67(10):2321–2325. doi: 10.1007/s11837-015-1591-5
5.
YehJW, ChenSK, LinSJ, GanJY, ChinTS, ShunTT.Nanostructure high-entropy alloys with multiple principal elements: novel alloy design concepts and outcomes. Adv Eng Mater. 2004;6(5):299–303. doi: 10.1002/adem.200300567
6.
BhattacharjeePP, SathiarajGD, ZaidM, GattiJR, LeeC, TsaiC-W, YehJW.Microstructure and texture evolution during annealing of equiatomic CoCrFeMnNi high-entropy alloy. J Alloys Compd. 2014;587(7):544–552. doi: 10.1016/j.jallcom.2013.10.237
7.
WangFJ, ZhangY, ChenGL, DaviesHA.Cooling rate and size effect on the microstructure and mechanical properties of AlCoCrFeNi high entropy alloy. J Eng Mater Technol. 2009;131(3):176–177. doi: 10.1115/1.3120387
8.
GuoS, NgC, LiuCT.Anomalous solidification microstructures in Co-free Al
x
CrCuFeNi2 high-entropy alloys. J Alloys Compd. 2013;557(10):176–177.
9.
NgC, GuoS, LuanJH, WangQ, LuJ, ShiSQ, LiuCT.Phase stability and tensile properties of Co-free Al0.5CrCuFeNi2 high-entropy alloys. J Alloys Compd. 2014;584(3):530–537. doi: 10.1016/j.jallcom.2013.09.105
10.
LuYP, DongY, GuoS, JiangL, KangHJ, WangTM, WenB, WangZJ, JieJC, CaoZQ, RuanHH, LiTJ.A promising new class of high-temperature alloys: eutectic high-entropy alloys. Sci Rep. 2014;4:6200–6200. doi: 10.1038/srep06200
11.
YeX , MaM, CaoY, CaoYXL, LiuWJ, GuY.The property research on high-entropy alloy Al
x
FeCoNiCuCr coating by laser cladding. Phys Procedia. 2011;12(1):303–312. doi: 10.1016/j.phpro.2011.03.039
12.
YueTM, XieH, LinX, YangHO, MengGH.Solidification behaviour in laser cladding of AlCoCrCuFeNi high-entropy alloy on magnesium substrates. J Alloys Compd. 2014;587:588–593. doi: 10.1016/j.jallcom.2013.10.254
13.
ZhaoF, SongZX, ZhangGF, HouXD, DengDW.Effects of substrate bias on structure and mechanical properties of AlCrTiWNbTa coatings. Surf Eng. 2013;29(10):778–782. doi: 10.1179/1743294413Y.0000000211
14.
PowellJ, HenryPS, SteenWM.Laser cladding with preplaced powder: analysis of thermal cycling and dilution effects. Surf Eng. 2013;4(2):141–149. (9). doi: 10.1179/sur.1988.4.2.141
15.
WuW, JiangL, JiangH, PanXM, CaoZQ, DengDW, WangTM, LiTJ.Phase evolution and properties of Al2CrFeNiMo
x
high-entropy alloys coatings by laser cladding. J Therm Spray Technol. 2015;24:1–8. doi: 10.1007/s11666-015-0303-6
16.
QiuXW.Microstructure and properties of AlCrFeNiCoCu high entropy alloy prepared by powder metallurgy. J Alloys Compd. 2013;555(4):246–249. doi: 10.1016/j.jallcom.2012.12.071
17.
QiuXW, ZhangYP, LiuCG.Effect of Ti content on structure and properties of Al2CrFeNiCoCuTix high-entropy alloy coatings. J Alloys Compd. 2014;585:282–286. doi: 10.1016/j.jallcom.2013.09.083
18.
QiuXW, LiuCG.Microstructure and properties of Al2CrFeCoCuTiNi
x
high-entropy alloys prepared by laser cladding. J Alloys Compd. 2013;553:216–220. doi: 10.1016/j.jallcom.2012.11.100
19.
HuangC, ZhangY, RuiV, ShenJ.Dry sliding wear behavior of laser clad TiVCrAlSi high entropy alloy coatings on Ti-6Al-4V substrate. Mater Des. 2012;41:338–343. doi: 10.1016/j.matdes.2012.04.049
20.
HuangC, ZhangY, ShenJ, RuiV.Thermal stability and oxidation resistance of laser clad TiVCrAlSi high entropy alloy coatings on Ti-6Al-4V alloy. Surf Coat Technol. 2011;206(6):1389–1395. doi: 10.1016/j.surfcoat.2011.08.063
21.
ZhangH, YeP, HeY, JiaoH.Microstructure and properties of 6FeNiCoSiCrAlTi high-entropy alloy coating prepared by laser cladding. Appl Surf Sci. 2011;257(6):2259–2263. doi: 10.1016/j.apsusc.2010.09.084
22.
ZhangH, PanY, HeY.Effects of annealing on the microstructure and properties of 6FeNiCoCrAlTiSi high-entropy alloy coating prepared by laser cladding. J Therm Spray Technol. 2011;20(5):1049–1055. doi: 10.1007/s11666-011-9626-0
23.
GuoS, HuQ, NgC, LiuCT.More than entropy in high-entropy alloys: Forming solid solutions or amorphous phase. Intermetallics. 2013;41(10):96–103. doi: 10.1016/j.intermet.2013.05.002
24.
XuP, JuH, LinCX, ZhouCY, PanDW.In-situ synthesis of Fe-Mn-Si-Cr-Ni shape memory alloy functional coating by laser cladding. Chin Opt Lett. 2014;12(4):48–50.
25.
TsaiMH, YehJW, GanJY.Diffusion barrier properties of AlMoNbSiTaTiVZr high-entropy alloy layer between copper and silicon. Thin Solid Films. 2008;516(16):5527–5530. doi: 10.1016/j.tsf.2007.07.109
ChenMR, LinSJ, YehJW, ChuangMH, ChenSK, HuangYS.Effect of vanadium addition on the microstructure, hardness, and wear resistance of Al0.5CoCrCuFeNi high-entropy alloy. Metal Mater Trans A. 2006;37(5):1363–1369. doi: 10.1007/s11661-006-0081-3
28.
HaldarB, KarmakarS, SahaP, ChattopadhyayAB.In-situ multi-component MMC coating developed on Ti-6Al-4V substrate. Surf Eng. 2014;30(4):256–262. doi: 10.1179/1743294414Y.0000000252
