Investigating the Effect of Reinforcing Particles Size and Content on Tensile and Fatigue Properties of Heat-Treated Al7075-SiC Composites Fabricated by the Stir Casting Method

Yu, Xinping; Bakhtiari, Hamed; Zhou, Jilie; Bidgoli, Mostafa Omidi; Asemi, Kamran

doi:10.1007/s11837-022-05248-6

Cited by 10 publications

(1 citation statement)

References 31 publications

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“…Corrosion can result in structure failure and sometimes this failure is tragic. Nowadays, the prevention of corrosion becomes more important [8]. AMCs strengthened using ceramic particles have become popular for various automotive and aerospace applications because of their mechanical characteristics.…”

Section: Introductionmentioning

confidence: 99%

The Effects of Titanium Dioxide (TiO2) Content on the Dry Sliding Behaviour of AA2024 Aluminium Composite

A. Al-Obaidi

2023

JMechE

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The low density, low expansion coefficient, and strong corrosion resistance at room temperature of Aluminium alloys have made them a popular choice for engineering applications. In this study, Aluminium AA2024 alloys are prepared with different weight contents of ceramic material, titanium oxide (TiO2) nanoparticles (0%, 2.5%, 5%, and 7.5% wt.) of a particle size of 30 nm using the metal stir casting method. The hardness property and wear resistance with the effect of heat treatment are investigated using a pin-on-disc wear device for both the base alloy and the reinforced alloys. The result shows the prosperity of 5wt.% of TiO2 to attain the optimum hardness and wear resistance. Using the optimum content of TiO2 and heat treatment, the hardness and wear resistance of 5wt.% TiO2-AA2024 nanocomposite has been significantly improved after heat treatment over the unreinforced Aluminium matrix. Statistically, the hardness and wear resistance are improved by 68% and 22%, respectively. This is due to an increased number of fine precipitates besides their uniformly distributed after heat treatment. Furthermore, casting AA2024 Aluminium alloy material mainly has S (Al2CuMg) and Al3TiCu phases. The appearance of a large number of S phases causes a significant improvement in the properties of the alloy.

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Section: Introductionmentioning

confidence: 99%