Open Access

Investigating the Fatigue Behaviour of TiO2 Nanoparticle Reinforced AA7071 Aluminium Alloy

K. Sabari, sabarik246@gmail.com
Department of Mechanical Engineering, Saveetha School of Engineering, Saveetha Institute of Medical and Technical Sciences, Chennai, TN, India K. Ch. Sekhar, Department of Mechanical Engineering, Lendi Institute of Engineering and Technology, Jonnada, Vizianagaram, AP, India M. Thirunavukkarasu, Department of Automobile Engineering, Dr.Mahalingam College of Engineering and Technology, Coimbatore, TN, India DVSSSV Prasad, Department of Mechanical Engineering, Aditya College of Engineering (A), Surampalem, AP, India G. Rathinasabapathi, Department of Mechanical Engineering, Panimalar Engineering College, Chennai, TN, India Nageswara Rao Medikondu Department of Mechanical Engineering, Koneru Lakshmaiah Education Foundation, Vaddeswaram, AP, India

---

---

Abstract

Aluminium metal matrix nanocomposites have become a major focus in the industry as they possess exceptional strength and ductility. The experiment included incorporating TiO₂ nanoparticles into the AA7071 alloy at a volume ratio of 5 wt. % using the stir casting technique. The matrix was infused with TiO₂ nanoparticles, which had an average particle size of 30 ± 5 nm, using a powder injection method. A study was carried out to assess the influence of different levels of TiO₂ on the durability of the material, both before and after undergoing heat treatment. The results indicated that the fatigue properties of AA7071 were enhanced after heat treatment when TiO₂ nanoparticles were incorporated. After undergoing heat treatment, a 5 wt. % TiO₂ addition resulted in a significant improvement in fatigue properties, leading to a noteworthy 14.71% increase in fatigue life when compared to the base sample. The observed improvement may be ascribed to the larger quantity of finely dispersed precipitates that are evenly distributed after the heat treatment procedure. The fatigue strength of the matrix in composite materials showed a discrepancy of just 4% between the experimental and numerical values. Furthermore, the research found that the absence or decrease in the size of the area without precipitates inside the space between dendrites happened after the aging process. Nevertheless, despite the inclusion of 5 weight percent of titanium and the use of heat treatment, the creation of Al₂CuMg precipitates remained unachievable. However, the formation of the Al₃TiCu and Al₇TiCu phases occurred.

Full Text

Reference

---

Al-Furjan, M. S. H., Hajmohammad, M. H., Shen, X., Rajak, D. K., Kolahchi, R., Evaluation of tensile strength and elastic modulus of 7075-T6 aluminum alloy by adding SiC reinforcing particles using vortex casting method, J. Alloys Compd. 886, 161261 (2021).

https://doi.org/10.1016/j.jallcom.2021.161261

Anbukarasi, K., Mala, D., Senthilkumar, N., Hussain, S. I., Kalaiselvam, S., Investigation of TiO2 Nanoparticles Influence on Tensile Properties and Thermal Stability of Dry and Wet Luffa-Epoxy Nanocomposites, Recent Pat Nanotechnol.

https://doi.org/10.2174/0118722105295445240418064351

Awasthi, A., Saxena, K. K., Arun, V., Sustainable and smart metal forming manufacturing process, Mater. Today Proc. 44, 2069–2079 (2021).

https://doi.org/10.1016/j.matpr.2020.12.177

Azhagiri, P., Senthilkumar, N., Palanikumar, K., Deepanraj, B., Mechanical properties evaluation on hybrid AA6026 composites added with nanoclay and carbon fibers, Carbon Lett. 33(3), 833–846 (2023).

https://doi.org/10.1007/s42823-023-00464-9

Das, D., Ray, K. K., Structure–property correlation of sub-zero treated AISI D2 steel, Mater. Sci. Eng. A 541, 45–60 (2012).

https://doi.org/10.1016/j.msea.2012.01.130

Divagar, S., Vigneshwar, M., Selvamani, S. T., Impacts of Nano Particles on Fatigue Strength of Aluminum Based Metal Matrix Composites for Aerospace, Mater. Today Proc. 3(10), 3734–3739 (2016).

https://doi.org/10.1016/j.matpr.2016.11.021

Gajalakshmi, K., Senthilkumar, N., Mohan, B., Anbuchezhiyan, G., An investigation on microstructure and mechanical behaviour of copper-nickel coated carbon fibre reinforced aluminium composites, Mater. Res. Express 7(11), 115701 (2020).

https://doi.org/10.1088/2053-1591/abcb4c

Gao, L.-J., Liu, X.-L., Zhang, J.-Q., Wang, S.-Q., Chen, J.-F., Grain-controlled barium titanate ceramics prepared from high-gravity reactive precipitation process powder, Mater. Chem. Phys. 88(1), 27–31 (2004).

https://doi.org/10.1016/j.matchemphys.2004.03.023

Jaber, M. H., Aziz, G. A., Mohammed, A. J., AL-AIKawi, H. J., Electrical conductivity, magnetic and fatigue properties of aluminum matrix composites reinforced with nano-titanium dioxide (TiO 2 ), Nanocomposites 6(2), 47–55 (2020).

https://doi.org/10.1080/20550324.2020.1769976

Mahan, H., Mahjoob, D., Mahmood, K., Mechanical properties of alumina nano-particles and glass fiber, Kevlar fiber reinforced composites, J. Eng. Appl. Sci. 13(21), 9096–9100 (2018).

https://doi.org/10.3923/jeasci.2018.9096.9100

Miyamoto, G., Usuki, H., Li, Z.-D., Furuhara, T., Effects of Mn, Si and Cr addition on reverse transformation at 1073K from spheroidized cementite structure in Fe–0.6 mass% C alloy, Acta Mater. 58(13), 4492–4502 (2010).

https://doi.org/10.1016/j.actamat.2010.04.045

Park, Y.-K., Park, S. H., Development of a New Wind-Blown-Dust Emission Module Using Comparative Assessment of Existing Dust Models, Part. Sci. Technol. 28(3), 267–286 (2010).

https://doi.org/10.1080/02726351.2010.491761

Sabari, K., Muniappan, A., Thermal and Mechanical Investigation of Friction Stir Welding with Disparate Materials AA6061 and AA7075, Recent Patents Mech. Eng. 17(3), 181–194 (2024a).

https://doi.org/10.2174/0122127976284835240116085109

Sabari, K., Muniappan, A., Singh, M., Synergistic Impact of Mechanical Properties on Friction Stir Welding Zone Formation in Magnesium Alloy: An Optimized Approach, (2024).

https://doi.org/10.4271/2024-01-5034

Sabari, K., Muniappan, A., Singh, M., Enhancing Microstructural Characteristics and Mechanical Properties in Friction Stir Welding of Thick Magnesium Alloy Plates through Optimization, (2024).

https://doi.org/10.4271/2024-01-5014

Sundaraselvan, S., Senthilkumar, N., Rajkumar, K., Balamurugan, T., Optimization of wear studies on laser cladded AZ61 magnesium alloy with nano-titanium dioxide using grey relational analysis, Surf Rev Lett. 30(4), (2023).

https://doi.org/10.1142/S0218625X23500191

Walia, A. S., Srivastava, V., Jain, V., Bansal, S. A., Effect of TiC Reinforcement in the Copper Tool on Roundness During EDM Process, pp 125–135 (2020).

https://doi.org/10.1007/978-981-15-4059-2_10

Yang, D., Qiu, F., Zhao, Q., Jiang, Q., Excellent compressive strength and ductility of Ti5Si3–coated SiCP/Al2014 composites, J. Alloys Compd. 698, 1086–1093 (2017).

https://doi.org/10.1016/j.jallcom.2016.12.169