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Tensile Properties of Aluminum Silicon Nickel Iron Vanadium High Entropy Alloys

Authors: Sefiu A. Bello, Nasirudeen K. Raji, Jeleel A. Adebisi, Sadiq A. Raji

Abstract:

Pure metals are not used in most cases for structural applications because of their limited properties. Presently, high entropy alloys (HEAs) are emerging by mixing comparative proportions of metals with the aim of maximizing the entropy leading to enhancement in structural and mechanical properties. Aluminum Silicon Nickel Iron Vanadium (AlSiNiFeV) alloy was developed using stir cast technique and analysed. Results obtained show that the alloy grade G0 contains 44 percentage by weight (wt%) Al, 32 wt% Si, 9 wt% Ni, 4 wt% Fe, 3 wt% V and 8 wt% for minor elements with tensile strength and elongation of 106 Nmm-2 and 2.68%, respectively. X-ray diffraction confirmed intermetallic compounds having hexagonal closed packed (HCP), orthorhombic and cubic structures in cubic dendritic matrix. This affirmed transformation from the cubic structures of elemental constituents of the HEAs to the precipitated structures of the intermetallic compounds. A maximum tensile strength of 188 Nmm-2 with 4% elongation was noticed at 10wt% of silica addition to the G0. An increase in tensile strength with an increment in silica content could be attributed to different phases and crystal geometries characterizing each HEA.

Keywords: model, Tensile Strength, High Entropy Alloys, phases

Digital Object Identifier (DOI): doi.org/10.5281/zenodo.3593190

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References:


[1] Agunsoye, J. O., Bello, S. A., Talabi, S. I.… and Idegbekwu. T. E. (2015). Recycled Aluminium Cans/Eggshell Composites: Evaluation of Mechanical and Wear Resistance Properties. Tribology in Industry, 37 (1): 107-116.
[2] Aigbodion, V. S., Agunsoye, O. J., Edokpia, R. O. and Ezema, I. C. (2016). Performance Analysis of a Connecting Rod Produced with Al-Cu-Mg/Bean Pod Ash Nanoparticles. Silicon.
[3] Alaneme, K. K., Bodunrin, M. O. and Awe, A. A. (2016). Microstructure, mechanical and fracture properties of groundnut shell ash and silicon carbide dispersion strengthened aluminium matrix composites. Journal of King Saud University - Engineering Sciences, in Press.
[4] Bello, S. A., Raheem, I. A. and Raji, N. K. (2017). Study of tensile properties, fractography and morphology of aluminium (1xxx)/coconut shell micro particle composites. Journal of King Saud University - Engineering Sciences, 29: 269-277.
[5] Cubero-Sesin, J. M. and Horita, Z. (2012). Mechanical Properties and Microstructures of Al-Fe Alloys Processed by High-Pressure Torsion. Metallurgical and Materials Transactions A, 43 (13): 5182-5192.
[6] Fuxiao, Y., Fang, L., Dazhi, Z. and Toth, L. S. (2014). Microstructure and mechanical properties of Al-3Fe alloy processed by equal channel angular extrusion. IOP Conference Series: Materials Science and Engineering, 63: 012079.
[7] Harichandran, R. and Selvakumar, N. (2016). Effect of nano/micro B4C particles on the mechanical properties of aluminium metal matrix composites fabricated by ultrasonic cavitation-assisted solidification process. Archives of Civil and Mechanical Engineering, 16 (1): 147-158.
[8] Juan, A. L. and George, V. V. (2009). Using Microstructural Analysis to Solve Practical Problems. Techno-Notes, Buehler, 5 (1).
[9] Mittemeijer, E. J. (2011). Fundamentals of Materials Science_ The Microstructure–Property Relationship Using Metals as Model Systems (1 ed.): Springer-Verlag Berlin Heidelberg.
[10] Mohamed, A. M. A., Samuel, F. H., Samuel, A. M., Doty, H. W. and Valtierra, S. (2008). Influence of Tin Addition on the Microstructure and Mechanical Properties of Al-Si-Cu-Mg and Al-Si-Mg Casting Alloys. Metallurgical and Materials Transactions A, 39 (3): 490-501.
[11] Mohammad, S., Laurentiu, N. and Anwarul, H. (2014). Development of High-Strength and Highly Ductile Hypo-Eutectic Al-Si Alloys by Nano-Refining the Constituent Phases. Paper presented at the TMS (The Minerals, Metals & Materials Society).
[12] Muhammadreza, Z. (2015). Al-Si Cast Alloys -Microstructure and Mechanical Properties at Ambient and Elevated Temperature. (Bachelor degree Bachelor degree), Jönköping University, Sweden. (No. 7, 2015)
[13] Peter, K. L. (2014). Radiation Behavior of High-Entropy Alloys for Advanced Reactors. USA: Nuclear Energy University Programme 1-121.
[14] Reza, A., Lara, A. and Robert, E. R.-H. (2009). Physical Metallurgy Principles (P. Daly Ed. 4th ed.). USA: Cengage Learning.
[15] Tsai, M.-H. and Yeh, J.-W. (2014). High-Entropy Alloys: A Critical Review. Materials Research Letters, 2 (3): 107-123.
[16] William, D. C., Jr. (2007). Materials Science and Engineering an Introduction (7th edition). United State of American: John Wiley & Sons, Inc.