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Wear characteristics of (Al/B₄C and Al/TiC) nanocomposites synthesized via powder metallurgy method

Hasan, Lamyaa Khaleel ; Jiaad, Suaad Makki ; Salman, Khansaa Dawood ; Al-Maliki, Wisam Abed Kattea ; Alobaid, Falah ; Epple, Bernd (2023)
Wear characteristics of (Al/B₄C and Al/TiC) nanocomposites synthesized via powder metallurgy method.
In: Applied Sciences, 13 (23)
doi: 10.3390/app132312939
Article, Bibliographie

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Abstract

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.

Item Type: Article
Erschienen: 2023
Creators: Hasan, Lamyaa Khaleel ; Jiaad, Suaad Makki ; Salman, Khansaa Dawood ; Al-Maliki, Wisam Abed Kattea ; Alobaid, Falah ; Epple, Bernd
Type of entry: Bibliographie
Title: Wear characteristics of (Al/B₄C and Al/TiC) nanocomposites synthesized via powder metallurgy method
Language: English
Date: 4 December 2023
Place of Publication: Basel
Publisher: MDPI
Journal or Publication Title: Applied Sciences
Volume of the journal: 13
Issue Number: 23
Collation: 14 Seiten
DOI: 10.3390/app132312939
Corresponding Links:
Abstract:

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.

Uncontrolled Keywords: nanocomposites, powder metallurgy, microstructure, physical properties, micro-hardness, wear
Identification Number: Artikel-ID: 12939
Classification DDC: 600 Technology, medicine, applied sciences > 620 Engineering and machine engineering
Divisions: 16 Department of Mechanical Engineering
16 Department of Mechanical Engineering > Institut für Energiesysteme und Energietechnik (EST)
Date Deposited: 08 May 2024 07:50
Last Modified: 13 May 2024 05:14
PPN: 518021467
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