The Effect of Simple Shear Extrusion on the Microstructure and Surface Properties of Aluminum Components Produced by Powder Metallurgy

Document Type : Research Paper

Authors

1 School of Mechanical Engineering, College of Engineering, University of Tehran, Tehran, Iran

2 Department of Mechanical Engineering, Birjand University, Birjand, Iran

3 Department of Railway Engineering, Iran University of Science and Technology, Tehran, Iran

4 Department of Materials Engineering, Birjand University of Technology, Birjand, Iran

Abstract

This study focuses specifically on the combination of two methods: powder metallurgy and severe plastic deformation. In this research, the influence of a single pass of simple shear extrusion (SSE) on the grain refinement, structural evolution, and some tribological properties of pure aluminum samples produced through the powder metallurgy method has been investigated. It is observed that after a single pass through the channel of SSE, the average grain size decreases, and the tribological properties of the sample significantly increases. The innovation of this research lies in the simultaneous combination of two methods: Fabrication of samples through powder metallurgy and severe plastic deformation. These methods lead to the alignment or even enhancement of the properties of the produced samples compared to conventionally cast samples. The recorded hardness values for the produced samples decreased from 57 Brinell for the as-cast sample to 29, 43, and 60.3 Brinell after initial pressing, sintering, and a single pass of SSE, respectively. Wear test results also indicate a substantial improvement in wear resistance in the refined-grain sample, with a weight loss reduction of 0.011 grams compared to the powder metallurgy stage. Furthermore, corrosion test results show an increase in corrosion potential from 730 to 720 millivolts in the powder metallurgy sample after SSE, and the current density decreases from 1.71 to 1.54 amperes per square centimeter in the powder metallurgy and simple shear extrusion samples, respectively.

Keywords

References

[1] Emmanuel, A. O., Fayomi, O. S. I., & Akande, I. G. (2021, April). Aluminium alloys as advanced materials: a short communication. In IOP Conference Series: Materials Science and Engineering (Vol. 1107, No. 1, p. 012024). IOP Publishing. https://doi.org/10.1088/1757-899X/1107/1/012024
[2] Liu, L., Zhao, G., Wang, G., Ma, X., Yan, Z., & Cao, S. (2023). Hot deformation behavior and microstructure evolution model of 7055 aluminum alloy. Journal of Materials Research and Technology, 27, 3191-3213. https://doi.org/10.1016/j.jmrt.2023.10.165
[3] Lall, C., Heath, W. (2000). P/M aluminum structural parts: manufacturing and metallurgical fundamentals. International Journal of Powder Metallurgy, 36(6), 45-50.
[4] Abdullah, Y., & Kamarudin, N. (2012). Al/B4C composites with 5 and 10 wt% reinforcement content prepared by powder metallurgy. Journal of Nuclear and Related Technologies, 9(01), 43-48.
[5] Sedehi, S. M. R., Khosravi, M., & Yaghoubinezhad, Y. (2021). Mechanical properties and microstructures of reduced graphene oxide reinforced titanium matrix composites produced by spark plasma sintering and simple shear extrusion. Ceramics International, 47(23), 33180-33190. https://doi.org/10.1016/j.ceramint.2021.08.219
[6] Bunakov, N. A., Kozlov, D. V., Golovanov, V. N., Klimov, E. S., Grebchuk, E. E., Efimov, M. S., & Kostishko, B. B. (2016). Fabrication of multi-walled carbon nanotubes–aluminum matrix composite by powder metallurgy technique. Results in Physics, 6, 231-232. https://doi.org/10.1016/j.rinp.2016.04.013
[7] Nassar, A. E., & Nassar, E. E. (2017). Properties of aluminum matrix nano composites prepared by powder metallurgy processing. Journal of King Saud University-Engineering Sciences, 29(3), 295-299. https://doi.org/10.1016/j.jksues.2015.11.001
[8] Dixit, M., & Srivastava, R. K. (2018, June). Effect of compaction pressure on microstructure, density and hardness of copper prepared by powder metallurgy route. In IOP Conference Series: Materials Science and Engineering (Vol. 377, No. 1, p. 012209). IOP Publishing.
https://doi.org/0.1088/1757-899X/377/1/012209
[9] Rzepa, S., Trojanová, Z., Melzer, D., Procházka, R., Koukolíková, M., Podaný, P., & Džugan, J. (2023). Effect of ECAP on fracture toughness and fatigue endurance of DED-processed Ti-6Al-4V investigated on miniaturized specimens. Journal of Alloys and Compounds, 968, 172167.
https://doi.org/10.1016/j.jallcom.2023.172167
[10] Zhilyaev, A. P., & Langdon, T. G. (2008). Using high-pressure torsion for metal processing: Fundamentals and applications. Progress in Materials Science, 53(6), 893-979. https://doi.org/10.1016/j.pmatsci.2008.03.002
[11] Saito, Y., Tsuji, N., Utsunomiya, H., Sakai, T., & Hong, R. G. (1998). Ultra-fine grained bulk aluminum produced by accumulative roll-bonding (ARB) process. Scripta Materialia, 39(9), 1221-1227. https://doi.org/10.1016/S1359-6462(98)00302-9
[12] Langdon, T. G. (2007). The processing of ultrafine-grained materials through the application of severe plastic deformation. Journal of Materials Science, 42(10), 3388-3397.
https://doi.org/10.1007/s10853-006-1475-8
[13] Sedehi, S. M. R., Khosravi, M., & Yaghoubi Nejad, Y. (2022). Experimental comparison of microstructure and surface properties of Al/Al2O3 sample produced by powder metallurgy and spark plasma sintering methods. Journal of Solid and Fluid Mechanics, 12(5), 123-132. https://doi.org/10.22044/JSFM.2022.11821.3580
[14] Liu, J., & Liang, C. (2017). Microstructure characterization and mechanical properties of bulk nanocrystalline aluminium prepared by SPS and followed by high-temperature extruded techniques. Materials Letters, 206, 95-99. https://doi.org/10.1016/j.matlet.2017.06.129
[15] Zhou, F., Lee, J., Dallek, S., & Lavernia, E. J. (2001). High grain size stability of nanocrystalline Al prepared by mechanical attrition. Journal of Materials Research, 16(12), 3451-3458.
https://doi.org/10.1557/JMR.2001.0474
[16] Zabihi, M., Emadoddin, E., & Qods, F. (2020). Processing of Al/Al2O3 composite using simple shear extrusion (SSE) manufactured by powder metallurgy (PM). Metals and Materials International, 26, 1-13. https://doi.org/10.1007/s12540-019-00299-y
[17] Ribeiro, T. M., Catellan, E., Garcia, A., & dos Santos, C. A. (2020). The effects of Cr addition on microstructure, hardness and tensile properties of as-cast Al–3.8 wt.% Cu–(Cr) alloys. Journal of Materials Research and Technology, 9(3), 6620-6631. https://doi.org/10.1016/j.jmrt.2020.04.054
[18] Cheng, L., Liu, C., Han, D., Ma, S., Guo, W., Cai, H., & Wang, X. (2019). Effect of graphene on corrosion resistance of waterborne inorganic zinc-rich coatings. Journal of Alloys and Compounds, 774, 255-264. https://doi.org/10.1016/j.jallcom.2018.09.315
[19] Zhang, Y., Chen, F., Zhang, Y., & Du, C. (2020). 1Influence of graphene oxide additive on the tribological and electrochemical corrosion properties of a PEO coating prepared on AZ31 magnesium alloy. Tribology International, 146, 106135. https://doi.org/10.1016/j.triboint.2019.106135
 
Iranian Journal of Materials Forming
Volume 11, Issue 1
January 2024
Pages 24-33

Files

Share

How to cite

Statistics