Mechanical and Tribological Properties Correlations of Die Cast and Spray Formed Aluminum 2.5wt.% Cu-2.5wt.% Mg - 5wt.% Zn Alloy

Abstract:

Aluminum with –2.5wt.% Cu–2.5wt.% Mg – 5wt.% Zn alloy was synthesized by die cast and spray formed technique. The average density of die cast and spray formed Al alloy was measured by water displacement method. The compression strength, hardness and tribological properties of the Al alloy produced by die cast and spray formed technique was studied as per the ASTM test standards and recorded the average values. The surface morphology of die cast Al alloy depicts the dendritic structures and spray formed Al alloy contains the equiaxed grains, coarse grains and fine grains across the surface. The elemental analysis of both die cast and spray formed Al alloy was measured by using scanning electron microscope. Average percentage of porosity of die cast and spray formed aluminum alloy is 1.79 ± 0.23 and 1.10 ± 0.3 respectively. The hardness of spray formed Al alloy is 10.54 % lesser than that of die cast Al alloy. Average ultimate compression strength of spray formed and die cast Al alloys are 360.07 ± 9.58 MPa and 353.33 ± 5.56 MPa respectively. The study also recorded the wear rate and coefficient of friction of die cast and spray formed Al alloy at different load and speed conditions. The precipitation strengthening mechanism is found to be involved in spray formed alloy.

• Periodical: Solid State Phenomena (Volume 340)
• Pages: 71-81
• DOI: https://doi.org/10.4028/p-v47orq
• Online since: December 2022
• Authors: Heggedehalli Krishnappa Chandra Mohan, Sonnappa Devaraj*, Kalavara Saddashiva Reddy Narayana Swamy, B.K. Venkatesha
• Keywords: Alloys, Die Cast, Mechanical Properties, Microstructure, Spray Formed, Wear Properties

References

[1] J. A. Moreto, C. E. B. Marino, W. W Bose Filho, SVET, SKP and EIS study of the corrosion behaviour of high strength Al and Al- Li alloys used in aircraft fabrication, Corro. Sci. 84 (2014) 30-41.

DOI: 10.1016/j.corsci.2014.03.001

[2] T.Z. Zhao, Z.X. Fan, H.Z. Xie, H.R. Chen, S.F. Chen, S.H. Zhang, A new modeling framework for anisotropic yield strength of Al-Li alloy sheet with inhomogeneous plate-like T1 precipitates, I, J. Plastic. 157 (2022) 103396.

DOI: 10.1016/j.ijplas.2022.103396

[3] W. Kurz, D.J. Fisher. Fundamentals of Solidification: Chapter 5. Switzerland. Trans Tech Publications, (1998).

[4] I. Polmear, The influence of small additions of silver on the structure and properties of aged aluminum alloys. J. Of Met. 20 (1968) 44−51.

DOI: 10.1007/bf03378722

[5] N. Sen, D. West, The influence of 0.5 wt.% Ag on defect structures in an Al/3.2wt.%Cu/1.5wt.%Mg alloy. J. of Mat. Sci. 3(3) (1968) 266−270.

DOI: 10.1007/bf00741960

[6] N. Sen, D. West. Some factors influencing S precipitation in Al−Cu−Mg and Al−Cu−Mg−Ag alloys, J. of the Inst. of Met. 97 (1969) 87−92.

[7] Y. Kaygısız. Microstructure characterization and hardness of Al-Cu-Mn eutectic alloy. Overseas Foundry, doi: https://doi.org/10.1007/s41230-018-7225-0, Vol.15 No.5 September (2018).

DOI: 10.1007/s41230-018-7225-0

[8] A. Chen, L. Zhang, G. Wu, Y. Peng, and Y. Li. Effect of Mn addition on microstructure and mechanical properties of cast Al–2Li–2Cu–0.8Mg–0.4Zn–0.2Zr alloy, J. Mater. Res, 31 (2016) 250-258.

DOI: 10.1557/jmr.2015.408

[9] V. C Srivastava, G. B. Rudrakshi, V. Uhlenwinkel, S. N. Ojha, Wear characteristics of spray formed Al-alloys and their composites. J. Mater Sci. 44 (2009) 2288–2299.

DOI: 10.1007/s10853-008-2924-3

[10] M. Karlík, T. Mánik, and H. Lauschmann, Influence of Si and Fe on the distribution of intermetallic compounds in twin-roll cast Al–Mn–Zr alloys. J. Alloys. Compd. 515 (2012) 108–113.

DOI: 10.1016/j.jallcom.2011.11.101

[11] C. J. Tseng, S. L. Lee, S. C. Tsai, and C. J. Cheng, Effects of manganese on microstructure and mechanical properties of A206 alloys containing iron. J. Mater. Res. 17 (2002) 2243–2250.

DOI: 10.1557/jmr.2002.0330

[12] X.F. Wan, X.D. Liu, Y.C. Shan, H. Yan, Numerical and experimental investigation on the effect of tire on the 13 impact test of automotive wheel, Adv. Eng. Software 133 (2019) 20–27.

DOI: 10.1016/j.advengsoft.2019.04.005

[13] P. Vignesh, R. D. Mallikarjuna, Investigation on flexural strength of cellulose-microfibril-reinforced polymer composites. Emer. Mater. Res. 9 (2020) 1-12.

[14] S. Arulvel, R. D. Mallikarjuna, W. R. D. Dsilva, A. Takeshi, A comprehensive review on mechanical and surface characteristics of composites reinforced with coated fibres Surfaces and Interfaces Pub Date: 2021-09-15,.

DOI: 10.1016/j.surfin.2021.101449

[15] P. Shreekant, D. M. Reddy, J. Naveen, S. S. Swamy, P. Vignesh, G. Venkatachalam, Low-Velocity Impact and Compression after Impact Properties of Hemp and Jute Fiber Reinforced Epoxy Composites, J. of Nat. Fib. (2022).

DOI: 10.1080/15440478.2022.2057383