Influence of ZnO nanoparticles on the microstructure of a CoCrFeMoNi matrix via powder metallurgy
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Abstract
In the last decade, extensive research has been carried out on the microstructural behavior of high-entropy alloys (HEA), for which the in-situ formation of nanoparticles has been reported. However, studies of the incorporation of nanoparticles in HEA have been rarely reported. In this work, the addition of zinc oxide nanoparticles (ZnO NP) as reinforcement in a CoCrFeMoNi high-entropy alloy matrix, as well as the morphological, structural, and microstructural evolution of composites synthesized via powder metallurgy, were studied. Scanning electron microscopy and X-ray diffraction analysis were performed in order to study the microstructural and phase characterization of the composites. After sintering, it was found that the ZnO NP addition (0.5wt%, 1wt% and 2wt%) had a significant influence on the micro-structure and hardness of the CoCrFeMoNi high-entropy alloy. Stronger bonding among metal particles was promoted with the additions of ZnO NP. A reduction in porosity as a function of ZnO NP content was also observed. The microhardness results showed that the composite reached its highest reinforcement in bulk samples with 1wt% ZnO NP (HV 870), which represented a 20% improvement over the unrein-forced HEA matrix.
Keywords
high-entropy alloy mechanical alloying nanoparticles compositesPreview
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Notes
Acknowledgments
The authors express their gratitude to K. Cam-pos-Venegas and C.E. Ornelas-Gutiérrez for their technical assistance.
References
- [1]P. Ashwath and M.A. Xavior, Processing methods and property evaluation of Al2O3 and SiC reinforced metal matrix composites based on aluminum 2xxx alloys, J. Mater. Res., 31(2016), No. 9, p. 1.CrossRefGoogle Scholar
- [2]M.A. Khan, G.M. Madhu, and R.R.N. Sailaja, Reinforcement of polymethyl methacrylate with silane-treated zinc oxide nanoparticles: fire retardancy, electrical and mechanical properties, Iran. Polym. J., 26(2017), No. 10, p. 1.CrossRefGoogle Scholar
- [3]R. Suntako, Effect of zinc oxide nanoparticles synthesized by a precipitation method on mechanical and morphological properties of the CR foam, Bull. Mater. Sci., 38(2015), No. 4, p. 1.CrossRefGoogle Scholar
- [4]S. Wacharawichanant, P. Saetun, T. Lekkong, S. Thongyai, and P. Praserthdam, Effect of poly(styrene-co-maleic anhydride) compatibilizer on properties of polystyrene/zinc oxide composites, Iran. Polym. J., 21(2012), No. 6, p. 1.CrossRefGoogle Scholar
- [5]B.O. Fatile, B.O. Adewuyi, and H.T. Owoyemi, Synthesis and characterization of ZA-27 alloy matrix composites reinforced with zinc oxide nanoparticles, Eng. Sci. Technol. Int. J., 20(2017), No. 3, p. 1.Google Scholar
- [6]M.S. El-Wazery, R.A. Elsad, S.M. Khafagy, and M.M. Meiz, Enhancement of microstructure and mechanical properties of hypereutectic Al-16%Si alloy by ZnO nanocrystallites, Appl. Phys. A, 124(2018), p. 1.CrossRefGoogle Scholar
- [7]S. Tekumalla, N. Farhan, T.S. Srivatsan, and M. Gupta, Nano-ZnO particles' effect in improving the mechanical response of Mg-3Al-0.4Ce alloy, Metals, 6(2016), No. 11, p. 1.CrossRefGoogle Scholar
- [8]T.T. Shun, C.H. Hung, and C.F. Lee, Formation of ordered/disordered nanoparticles in FCC high entropy alloys, J. Alloys Compd., 493(2010), No. 12-2, p. 1.CrossRefGoogle Scholar
- [9]T.T. Shun, C.H. Hung, and C.F. Lee, The effects of secondary elemental Mo or Ti addition in Al0.3CoCrFeNi high-entropy alloy on age hardening at 700°C, J. Alloys Compd., 495(2010), No. 1, p. 1.CrossRefGoogle Scholar
- [10]T.T. Shun and Y.C. Du, Microstructure and tensile behaviors of FCC Al0.3CoCrFeNi high entropy alloy, J. Alloys Compd., 479(2009), No. 12-2, p. 1.CrossRefGoogle Scholar
- [11]H.F. Sheng, M. Gong, and L.M. Peng, Microstructural characterization and mechanical properties of an Al0.5CoCrFeCuNi high-entropy alloy in as-cast and heat-treated/quenched conditions, Mater. Sci. Eng. A, 567(2013), p. 1.CrossRefGoogle Scholar
- [12]X.Y. Liu, H.B.C. Yin, and Y. Xu, Microstructure, Mechanical and tribological properties of oxide dispersion strengthened high-entropy alloys, Materials, 10(2017), No. 11, p. 1.Google Scholar
- [13]H. Prasad, S. Singh, and B.B. Panigrahi, Mechanical activated synthesis of alumina dispersed FeNiCoCrAlMn high entropy alloy, J. Alloys Compd., 692(2017), p. 1.CrossRefGoogle Scholar
- [14]H. Agarwal, S.V. Kumar, and S. Rajeshkumar, A review on green synthesis of zinc oxide nanoparticles - An eco-friendly approach, Resour.-Effic. Technol., 3(2017), No. 4, p. 1.CrossRefGoogle Scholar
- [15]C.L.D. de León, I. Olivas-Armendariz, J.F. Hernanández Paz, C.D. Gómez-Esparza, C. Velasco-Santos, J.L. Rive-ra-Armenta, C.A. Rodríguez-González, and T. de Materiales, Synthesis by sol-gel and cytotoxicity of zinc oxide nanopar-ticles using wasted alkaline batteries, Dig. J. Nanomater. Bios., 12(2017), No. 2, p. 1.Google Scholar
- [16]M.S. Staltsov, I.I. Chernov, I.A. Bogachev, B.A. Kalin, E.A. Olevsky, L.J. Lebedeva, and A.A. Nikitina, Optimization of mechanical alloying and spark-plasma sintering regimes to obtain ferrite-martensitic ODS steel, Nucl. Mater. Energy, 9(2016), p. 1.CrossRefGoogle Scholar
- [17]K.Y. Tsai, M.H. Tsai, and J.W. Yeh, Sluggish diffusion in Co-Cr-Fe-Mn-Ni high-entropy alloys, Acta Mater., 61(2013), p. 1.CrossRefGoogle Scholar
- [18]R. Marsalek, Particle size and zeta potential of ZnO, APC-BEE Procedia, 9(2014), p. 1.CrossRefGoogle Scholar
- [19]W.H. Qi, Size effect on melting temperature of nanosolids, Phys. B, 368(2005), No. 14-4, p. 1.CrossRefGoogle Scholar
- [20]A.E. Nassar and E.E. Nassar, Properties of aluminum matrix nano composites prepared by powder metallurgy processing, J. King Saud Univ.-Eng. Sci., 29(2017), p. 1.CrossRefGoogle Scholar
- [21]I. Estrada-Guel, C. Carreño-Gallardo, D.C. Mendoza-Ruiz, M. Miki-Yoshida, E. Rocha-Rangel, and R. Martínez-Sánchez, Graphite nanoparticle dispersion in 7075 aluminum alloy by means of mechanical alloying, J. Alloys Compd., 483(2009), No. 12-2, p. 173.CrossRefGoogle Scholar