Effects of Sintering Temperature on Microstructure and Wear Properties of Al&lt;sub&gt;2&lt;/sub&gt;O&lt;sub&gt;3&lt;/sub&gt; Particle Reinforced Al Composites

Wang, Tian Guo; Qin, Qun; Liang, Q. C.

doi:10.4028/www.scientific.net/amr.1095.16

AMR

2015

DOI: 10.4028/www.scientific.net/amr.1095.16

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Effects of Sintering Temperature on Microstructure and Wear Properties of Al<sub>2</sub>O<sub>3</sub> Particle Reinforced Al Composites

Tian Guo Wang

Qun Qin

Q. C. Liang

Abstract: Al2O3 particle reinforced aluminum composites were prepared by powder metallurgy process. The effects of sintering temperature on microstructure and tribological characteristic were investigated with the combination of experimental results and theoretical analysis. The composite sintered at 550 oC shows high relative density and strong interfacial bonding, whereas the composites sintered at lower and higher temperature indicate no interfacial bonding and poor interfacial bonding, respectively. The surface morp… Show more

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2023

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Wear Characteristics of (Al/B4C and Al/TiC) Nanocomposites Synthesized via Powder Metallurgy Method

Hasan,

Jiaad,

Salman

et al. 2023

Applied Sciences

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Objective: The aim of the present work is to study the microstructure, wear behavior, physical properties, and micro-hardness of the aluminum matrix AA6061 reinforced with TiC and B4C nanoparticles with different concentrations of 2.5, 5, 7.5, 10, and 12.5 wt.%. Methodology: Al/B4C and Al/TiC nanocomposites were fabricated with a powder metallurgy route. A dry sliding wear test was performed with a pin-on-disc machine. The wear test was performed at the applied loads of 3, 6, 9, 12, and 15 N at a constant time for about 10 min. The microstructural analysis of the fabricated nanocomposites was examined via field emission scanning electron microscopy (FESEM) and X-ray diffraction (XRD) analysis. The obtained data: The results of this work show that increasing the applied load leads to a decrease in the wear rate of the aluminum matrix and its nanocomposites. The wear rate of the aluminum matrix without any additives is about 7.25 × 10−7 (g/cm), while for Al/TiC and Al/B4C, it is 5.1 × 10−7 (g/cm) and 4.21 × 10−7 (g/cm), respectively. An increment in B4C percent increases the actual density, while an increment in TiC percent minimizes the actual density at 2.90 g/cm3 and 2.51 g/cm3, respectively. An increment in B4C percent decreases by 4.61%, while the porosity slightly increases with increases in TiC percent of 6.2%. Finally, the micro-hardness for Al/B4C is about 92 (HRC), and for Al/TiC, it is about 87.4 (HRC). Originality: In the present work, nanocomposites were fabricated using a powder metallurgy route. Fabricated nanocomposites are important in engineering industries owing to their excellent wear resistance, low thermal distortion, and light weight compared with other nanocomposites. On the other hand, Al/B4C and Al/TiC nanocomposites fabricated with a powder metallurgy route have not previously been investigated in a comparative study. Therefore, an investigation into these nanocomposites was performed.

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Wear Characteristics of (Al/B4C and Al/TiC) Nanocomposites Synthesized via Powder Metallurgy Method

Hasan,

Jiaad,

Salman

et al. 2023

Applied Sciences

View full text Add to dashboard Cite

show abstract

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Effects of Sintering Temperature on Microstructure and Wear Properties of Al<sub>2</sub>O<sub>3</sub> Particle Reinforced Al Composites

Cited by 1 publication

References 12 publications

Wear Characteristics of (Al/B4C and Al/TiC) Nanocomposites Synthesized via Powder Metallurgy Method

Wear Characteristics of (Al/B4C and Al/TiC) Nanocomposites Synthesized via Powder Metallurgy Method

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