Investigation of the Mechanical Behavior of Synthesized Al6061/TiO2 Microcomposites Using an Innovative Stir Casting Method

Badran, Ahmed; Alamro, Turki; Bazuhair, Rabeea W.; El-Mawla, Ahmed Ali Gad; El-Adben, S. Z.

doi:10.3390/nano12101646

Cited by 13 publications

(7 citation statements)

References 38 publications

(33 reference statements)

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“…The uniform distribution of Ti 2 SnC particles can significantly affect the grain refinement of Cu–Ti 2 SnC composites. [ 42 ] This reduction in grain size increases the strength of the composite according to the Hall–Patch relationship, which can be calculated using the following equation [ 43 ]

Δ σ_{GR} = K false(D_{normalc}^{- 0.5} - D_{normalm}^{- 0.5} false)

where K is a constant in the order of 4.5 MPa

\sqrt{mm}

[ 44 ] for Cu; D c and D m are the average grain sizes for the composite and monolithic Cu references, respectively. According to the microstructural results, it can be stated that by increasing the rotation speed up to 600 rpm, the strengthening effect through Hall–Patch increases, and with a further increase in the rotation speed, the contribution of this mechanism decreases.…”

Section: Resultsmentioning

confidence: 99%

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Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

et al. 2023

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Herein, the effect of Ti2SnC MAX phase reinforcement and friction stir back extrusion (FSBE) parameters on the microstructure, mechanical, electrical, and tribological behavior of Cu‐Ti2SnC composite is investigated. The results indicate that, depending on the rotational speed of the extrusion process, an equiaxed grain microstructure with a uniform distribution of reinforcing particles is formed after the extrusion process. Comparing the extruded samples to the unprocessed samples reveals a larger grain size after extrusion. The absence of MAX phase particles causes the formation of finer grain size in the extruded sample. Under the influence of heat and plastic strain, a reactive layer containing a solid solution of Cu(Sn) or Cu3Sn compounds is formed at the interface of the particle and the copper matrix. By performing the extrusion process, the reactive layer at the interface is broken and scattered on the copper matrix. Furthermore, by applying MAX phase reinforcing particles and performing the extrusion process, the copper matrix's hardness, tensile strength, and wear resistance increase by 128, 99, and 84%, respectively. The five vol% Ti2SnC MAX phases in the extruded copper matrix composite wire results in 7.3% reduction in electrical conductivity.

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Δ σ_{GR} = K false(D_{normalc}^{- 0.5} - D_{normalm}^{- 0.5} false)

where K is a constant in the order of 4.5 MPa

\sqrt{mm}

Section: Resultsmentioning

confidence: 99%

“…The uniform distribution of Ti 2 SnC particles can significantly affect the grain refinement of Cu-Ti 2 SnC composites. [42] This reduction in grain size increases the strength of the composite according to the Hall-Patch relationship, which can be calculated using the following equation [43] Δσ…”

Section: Resultsmentioning

confidence: 99%

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

et al. 2023

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“…When the grain size decreased, the surface area was increased [22]. Dislocations are prevented by grain refining [23]. In addition, matrix and reinforcement have different thermal conductivities.…”

Section: Microstructures Examinationsmentioning

confidence: 99%

Effects of TiO₂, CuO, and SiO₂ nanoparticles addition on the microstructure and mechanical properties of Al-10 wt% Zn alloy

AbdElRhiem,

Mostafa,

Nada

et al. 2023

Phys. Scr.

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This paper presents the effects of adding TiO2, CuO, and SiO2 (1 wt%) nanoparticles on the microstructure and mechanical properties of Al-10 wt% Zn alloy. A set of composite alloys was produced by incorporating SiO2, CuO, and TiO2 nanoparticles to the Al-10 wt% Zn alloy. Optical microscope (OM), scanning electron microscope (SEM) fitted with an Energy Dispersive Spectroscope (EDS), and X-ray diffraction (XRD) were used to investigate the microstructure of these alloys. The mechanical properties of the composite solders were assessed using the Vickers hardness tests. After a solution heat treatment at 500 K for 2 h, samples were immediately aged at 373 to 473 K for 2 h, followed by water quenching at 300 K. The experimental data indicated that Al-10 wt% Zn-1wt% SiO2 samples had the highest hardness values among all investigated composite alloys. The calculated porosity percentages of the composite alloys revealed that the Al-10 wt% Zn-1 wt% SiO2 samples had the lowest percentage. This finding can be attributed to the fact that these samples demonstrated the highest hardness values. The hardness of all composite alloys decreased with increasing the aging temperature with anomalous behavior at 443 K, where they had abnormally high values. The observed differences in the mean crystallite size, lattice strain, and dislocation density of the composite alloys, calculated from XRD data with increasing aging temperature, are attributed to the precipitation in Al-Zn alloys. The calculated values of the stress exponent and activation energy of composite alloys may be associated with grain boundary diffusion (GBD) as the dominant operating mechanism.

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“…Due to the advantages and enhancement in the properties of metal matrix composites, various metals and their alloys are used as base matrices [ 21 ]. Usually, the filler used in the composite is chosen according to the desired attributes for the application.…”

Section: Introductionmentioning

confidence: 99%

Effect of Synthesized Titanium Dioxide Nanofibers Weight Fraction on the Tribological Characteristics of Magnesium Nanocomposites Used in Biomedical Applications

Alnaser

Abdo

et al. 2023

Nanomaterials

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Biomedical applications, such as artificial implants, are very significant for the disabled due to their usage in orthopedics. Nevertheless, available materials in such applications have insufficient mechanical and tribological properties. The current study investigated the mechanical and tribological properties of a biomedical metallic material, magnesium (Mg), after incorporating titanium dioxide nanofibers (TiO2) with different loading fractions. The TiO2 nanofibers were synthesized using the electrospinning technique. The ball-milling technique was utilized to ensure the homogenous distribution of TiO2 nanofibers inside the Mg matrix. Then, samples of the mixed powder with different loading fractions of TiO2 nanofibers, 0, 1, 3, 5, and 10 wt.%, were fabricated using a high-frequency induction heat sintering technique. The physicomechanical and tribological properties of the produced Mg/TiO2 nanocomposites were evaluated experimentally. Results showed an enhancement in mechanical properties and wear resistance accompanied by an increase in the weight fraction of TiO2 nanofibers up to 5%. A finite element model was built to assess the load-carrying capacity of the Mg/TiO2 composite to estimate different contact stresses during the frictional process. The finite element results showed an agreement with the experimental results.

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Investigation of the Mechanical Behavior of Synthesized Al6061/TiO2 Microcomposites Using an Innovative Stir Casting Method

Cited by 13 publications

References 38 publications

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Effects of TiO₂, CuO, and SiO₂ nanoparticles addition on the microstructure and mechanical properties of Al-10 wt% Zn alloy

Effect of Synthesized Titanium Dioxide Nanofibers Weight Fraction on the Tribological Characteristics of Magnesium Nanocomposites Used in Biomedical Applications

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Investigation of the Mechanical Behavior of Synthesized Al6061/TiO2 Microcomposites Using an Innovative Stir Casting Method

Cited by 13 publications

References 38 publications

Effects of Ti2SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Effects of Ti2SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Effects of TiO2, CuO, and SiO2 nanoparticles addition on the microstructure and mechanical properties of Al-10 wt% Zn alloy

Effect of Synthesized Titanium Dioxide Nanofibers Weight Fraction on the Tribological Characteristics of Magnesium Nanocomposites Used in Biomedical Applications

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Product

Resources

About

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Effects of Ti₂SnC MAX Phase on Microstructure, Mechanical, Electrical, and Wear Properties of Stir‐Extruded Copper Matrix Composite

Effects of TiO₂, CuO, and SiO₂ nanoparticles addition on the microstructure and mechanical properties of Al-10 wt% Zn alloy