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Effect of Nb addition on the microstructural, mechanical and electrochemical characteristics of AlCrFeNiCu high-entropy alloy

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Abstract

AlCrFeNiCuNbx (x = 0.05, 0.15, and 0.26) high-entropy alloys (HEAs) were successfully fabricated using the laser metal deposition technique. The laser power of 1600 W and scanning speed of 1.2 m/min were used during laser processing of the alloys. The microstructural, mechanical, and electrochemical characteristics of the alloys were evaluated using various advanced characterization techniques. Results showed that the alloys exhibited a dual-phase structure with dendritic grains. The inclusion of Nb in the AlCrFeNiCu alloy matrix promoted the formation of fine eutectic structures and changed the shape of the grains from columnar to equiaxed. The Cu content decreased with the increase in the content of Nb, whereas the Al content increased with the increase in the content of Nb. The findings indicated that the presence of Nb in the alloy promoted the formation and enhanced the stability of the body-centered cubic (bcc) phase. All of the alloys that contained Nb also exhibited high hardness, compressive strength, and wear resistance. Furthermore, the low current density and positive shift in potential exhibited by HEAs with appropriate addition of Nb highlighted the superior anticorrosive properties.

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References

  1. L.M. Du, L.W. Lan, S. Zhu, H.J. Yang, X.H. Shi, P.K. Liaw, and J.W. Qiao, Effects of temperature on the tribological behavior of Al0.25CoCrFeNi high-entropy alloy, J. Mater. Sci. Technol., 35(2019), No. 5, p. 917.

    Article  Google Scholar 

  2. J. Joseph, N. Haghdadi, K. Shamlaye, P. Hodgson, M. Barnett, and D. Fabijanic, The sliding wear behavior of CoCrFeMnNi and AlxCoCrFeNi high entropy alloys at elevated temperatures, Wear, 428–429(2019), p. 32.

    Article  Google Scholar 

  3. C. Ni, Y. Shi, J. Liu, and G.Z. Huang, Characterization of Al0.5FeCu0.7NiCoCr high-entropy alloy coating on aluminum alloy by laser cladding, Opt. Laser Technol., 105(2018), p. 257.

    Article  CAS  Google Scholar 

  4. G. Jin, Z.B. Cai, Y.J. Guan, X.F. Cui, Z. Liu, Y. Li, M.L. Dong, and D. Zhang, High temperature wear performance of laser-cladded FeNiCoAlCu high-entropy alloy coating, Appl. Surf. Sci., 445(2018), p. 113.

    Article  CAS  Google Scholar 

  5. Q. Chao, T.T. Guo, T. Jarvis, X.H. Wu, P. Hodgson, and D. Fabijanic, Direct laser deposition cladding of AlxCoCrFeNi high entropy alloys on a high-temperature stainless steel, Surf. Coat. Technol., 332(2017), p. 440.

    Article  CAS  Google Scholar 

  6. Y. Zhang, T.T. Zuo, Z. Tang, M.C. Gao, K.A. Dahmen, P.K. Liaw, and Z.P. Lu, Microstructures and properties of high-entropy alloys, Prog. Mater. Sci., 61(2014), p. 1.

    Article  Google Scholar 

  7. Y.P. Lu, X.Z. Gao, L. Jiang, Z.N. Chen, T.M. Wang, J.C. Jie, H.J. Kang, Y.B. Zhang, S. Guo, H.H. Ruan, Y.H. Zhao, Z.Q. Cao, and T.J. Li, Directly cast bulk eutectic and near-eutectic high entropy alloys with balanced strength and ductility in a wide temperature range, Acta Mater., 124(2017), p. 143.

    Article  CAS  Google Scholar 

  8. B. Gludovatz, A. Hohenwarter, D. Catoor, E.H. Chang, E.P. George, and R.O. Ritchie, A fracture-resistant high-entropy alloy for cryogenic applications, Science, 345(2014), No. 6201, p. 1153.

    Article  CAS  Google Scholar 

  9. Y.Y. Liu, Z. Chen, J.C. Shi, Z.Y. Wang, and J.Y. Zhang, The effect of Al content on microstructures and comprehensive properties in AlxCoCrCuFeNi high entropy alloys, Vccuun, 161(2019), p. 143.

    CAS  Google Scholar 

  10. M. Li, J. Gazquez, A. Borisevich, R. Mishra, and K.M. Flores, Evaluation of microstructure and mechanical property variations in AlxCoCrFeNi high entropy alloys produced by a high-throughput laser deposition method, Intermetallics, 95(2018), p. 110.

    Article  CAS  Google Scholar 

  11. C.M. Cao, W. Tong, S.H. Bukhari, J. Xu, Y.X. Hao, P. Gu, H. Hao, and L.M. Peng, Dynamic tensile deformation and microstructural evolution of AlxCrMnFeCoNi high-entropy alloys, Mater. Sci. Eng. A, 759(2019), p. 648.

    Article  CAS  Google Scholar 

  12. M. Kang, K.R. Lim, J.W. Won, and Y.S. Na, Effect of Co content on the mechanical properties of A2 and B2 phases in AlCoxCrFeNi high-entropy alloys, J. Alloys Compd., 769(2018), p. 808.

    Article  CAS  Google Scholar 

  13. Y.F. Juan, J. Li, Y.Q. Jiang, W.L. Jia, and Z.J. Lu, Modified criterions for phase prediction in the multi-component laser-clad coatings and investigations into microstructural evolution/wear resistance of FeCrCoNiAlMox laser-clad coatings, Appl. Surf. Sci., 465(2019), p. 700.

    Article  CAS  Google Scholar 

  14. Y.Q. Jiang, J. Li, Y.F. Juan, Z.J. Lu, and W.L. Jia, Evolution in microstructure and corrosion behavior of AlCoCrxFeNi high-entropy alloy coatings fabricated by laser cladding, J. Alloys Compd., 775(2019), p. 1.

    Article  CAS  Google Scholar 

  15. L.L. Hou, J.T. Hui, Y.H. Yao, J. Chen, and J.N. Liu, Effects of boron content on the microstructure and mechanical properties of AlFeCoNiBx high entropy alloy prepared by vacuum arc melting, Vacuum, 164(2019), p. 212.

    Article  CAS  Google Scholar 

  16. J.H. Pi, Y. Pan, H. Zhang, and L. Zhang, Microstructure and properties of AlCrFeCuNix (0.6 ≤ x ≤ 1.4) high-entropy alloys, Mater. Sci. Eng. A, 534(2012), p. 228.

    Article  CAS  Google Scholar 

  17. A. Verma, P. Tarate, A.C. Abhyankar, M.R. Mohape, D.S. Gowtam, V.P. Deshmukh, and T. Shanmugasundaram, High temperature wear in CoCrFeNiCux high entropy alloys: The role of Cu, Scripta Mater., 161(2019), p. 28.

    Article  CAS  Google Scholar 

  18. Y. Yu, F. He, Z.H. Qiao, Z.J. Wang, W.M. Liu, and J. Yang, Effects of temperature and microstructure on the tribological properties of CoCrFeNiNbx eutectic high entropy alloys, J. Alloys Compd., 775(2019), p. 1376.

    Article  CAS  Google Scholar 

  19. Q. An, J.W. Wang, Y. Liu, B. Liu, W.M. Guo, Q.H. Fang, and Y. Nie, Effects of C and Mo on microstructures and mechanical properties of dual-phase high entropy alloys, Intermetallics, 110(2019), art. No. 106471.

  20. Y. Qiu, S. Thomas, D. Fabijanic, A.J. Barlow, H.L. Fraser, and N. Birbilis, Microstructural evolution, electrochemical and corrosion properties of AlxCoCrFeNiTiy high entropy alloys, Mater Des., 170(2019), art. No. 107698.

  21. Y.X. Guo and Q.B. Liu, MoFeCrTiWAlNb refractory high-entropy alloy coating fabricated by rectangular-spot laser cladding, Intermetallics, 102(2018), p. 78.

    Article  CAS  Google Scholar 

  22. L. Guo, W.Q. Wu, S. Ni, Z.W. Wang, and M. Song, Effects of annealing on the microstructural evolution and phase transition in an AlCrCuFeNi2 high-entropy alloy, Micron, 101(2017), p. 69.

    Article  CAS  Google Scholar 

  23. S.C. Luo, P. Gao, H.C. Yu, J.J. Yang, Z.M. Wang, and X.Y. Zeng, Selective laser melting of an equiatomic AlCrCuFeNi high-entropy alloy: Processability, non-equilibrium microstructure and mechanical behavior, J. Alloys Compd., 771(2019), p. 387.

    Article  CAS  Google Scholar 

  24. P.D. Niu, R.D. Li, T.C. Yuan, S.Y. Zhu, C. Chen, M.B. Wang, and L. Huang, Microstructures and properties of an equimolar AlCoCrFeNi high entropy alloy printed by selective laser melting, Intermetallics, 104(2019), p. 24.

    Article  CAS  Google Scholar 

  25. H. Dobbelstein, E.L. Gurevich, E.P. George, A. Ostendorf, and G. Laplanche, Laser metal deposition of compositionally graded TiZrNbTa refractory high-entropy alloys using elemental powder blends, Addit. Manuf., 25(2019), p. 252.

    CAS  Google Scholar 

  26. R.D. Li, P.D. Niu, T.C. Yuan, P. Cao, C. Chen, and K.C. Zhou, Selective laser melting of an equiatomic CoCrFeMnNi high-entropy alloy: Processability, non-equilibrium microstructure and mechanical property, J. Alloys Compd., 746(2018), p. 125.

    Article  CAS  Google Scholar 

  27. N.D. Nam and J.G. Kim, Effect of niobium on the corrosion behavior of low alloy steel in sulfuric acid solution, Corros. Sci., 52(2010), No. 10, p. 3377.

    Article  CAS  Google Scholar 

  28. S.G. Ma and Y. Zhang, Effect of Nb addition on the microstructure and properties of AlCoCrFeNi high-entropy alloy, Mater. Sci. Eng. A, 532(2012), p. 480.

    Article  CAS  Google Scholar 

  29. T.M. Yue, H. Xie, X. Lin, H.O. Yang, and G.H. Meng, Solidification behavior in laser cladding of AlCoCrCuFeNi high-entropy alloy on magnesium substrates, J. Alloys Compd., 587(2014), p. 588.

    Article  CAS  Google Scholar 

  30. S.G. Ma, Z.M. Jiao, J.W. Qiao, H.J. Yang, Y. Zhang, and Z.H. Wang, Strain rate effects on the dynamic mechanical properties of the AlCrCuFeNi2 high-entropy alloy, Mater. Sci. Eng. A, 649(2016), p. 35.

    Article  CAS  Google Scholar 

  31. A. Munitz, L. Meshi, and M.J. Kaufman, Heat treatments’ effects on the microstructure and mechanical properties of equiatomic Al–Cr–Fe–Mn–Ni high entropy alloy, Mater. Sci. Eng. A, 689(2017), p. 384.

    Article  CAS  Google Scholar 

  32. Y.F. Tao, J. Li, Y.H. Lv, and L.F. Hu, Effect of heat treatment on residual stress and wear behaviors of the TiNi/Ti2Ni based laser cladding composite coatings, Opt. Laser Technol., 97(2017), p. 379.

    Article  CAS  Google Scholar 

  33. V. Kukshal, A. Patnaik, and I.K. Bhat, Corrosion and thermal behavior of AlCr1.5CuFeNi2Tix high-entropy alloys, Matrr. Today: Proc., 5(2018), No. 9, p. 17073.

    CAS  Google Scholar 

  34. H. Demiroren, M. Aksoy, and M. Erbil, The effect of Nb and heat treatment on the corrosion behavior of ferritic stainless steel in acid environments, Mater. Sci., 44(2008), No. 4, p. 566.

    Article  CAS  Google Scholar 

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Authors and Affiliations

  1. Tshwane University of Technology, Pretoria, South Africa

    N. Malatji & A. P. I. Popoola

  2. Council for Scientific and Industrial Research, Pretoria, South Africa

    T. Lengopeng & S. Pityana

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  1. N. Malatji
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  2. A. P. I. Popoola
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  3. T. Lengopeng
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Malatji, N., Popoola, A.P.I., Lengopeng, T. et al. Effect of Nb addition on the microstructural, mechanical and electrochemical characteristics of AlCrFeNiCu high-entropy alloy. Int J Miner Metall Mater 27, 1332–1340 (2020). https://doi.org/10.1007/s12613-020-2178-x

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  • DOI: https://doi.org/10.1007/s12613-020-2178-x

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