Wear and mechanical properties of Al6061/SiC/B4C hybrid composites produced with powder metallurgy

Karakoç, Halil; Ovalı, İsmail; Sibel, Dündar; Çıtak, Ramazan

doi:10.1016/j.jmrt.2019.09.002

Cited by 106 publications

(39 citation statements)

References 24 publications

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“…The XRD peaks generally displayed non-high peak intensities for SiC and B 4 C (Figure 3(b), Figures 4(a)-(c)). These were found to be in line with other studies in the literature and the peaks for SiC and B 4 C were less distinct [21] [22] [23] [24].…”

Section: Discussionsupporting

confidence: 91%

Analysing the Microstructures and Pin-on-Disc Wear Properties of 1010 Steel-Based and B<sub>4</sub>C-Added Materials Produced through Powder Metallurgy

Demirel¹,

Koç²

2021

WJET

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The present study makes use of two distinct production methods. The first method involves producing 1010 steel-based materials containing SiC, MgO, H 3 BO 3 , and B 4 C (wt%10 -wt%30) with varying weights through powder metallurgy. This step was followed by hot pressing. In the second group, after all the chemicals were stirred, 20 ml of epoxy and epoxy hardener were added to the mixture. Then, the mixture was set aside to harden. XRD and SEM-EDS analyses were conducted on the mixture to observe the morphological impacts. Furthermore, friction coefficient values of the materials were also identified following wear tests under varying weights. The XRD analyses revealed the phase structures of Fe 3 C, SiC, MgO, H 3 BO 3 , B 4 C, and Fe 2 O 3 . As for the SEM-EDS analyses, they concluded the surface appearance of S60 and S55B20, the hot-pressed materials, dependent on liquid phase sintering. SEM of epoxybased S60E20 and S55B20E20 revealed white spherical structures and a flat matrix structure with shallow surface holes. In the pin-on-disc wear experiment, the friction coefficient value was reduced with the addition of SiC, MgO, and H 3 BO 3 (S60) to 1010 steel (S100). By adding various amounts of B 4 C, the friction coefficient was reduced even further, resulting in the improvement of wear properties.

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Section: Discussionsupporting

confidence: 91%

Analysing the Microstructures and Pin-on-Disc Wear Properties of 1010 Steel-Based and B<sub>4</sub>C-Added Materials Produced through Powder Metallurgy

Demirel¹,

Koç²

2021

WJET

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“…Copper is an element covering excellent heat and electrical conductivity and good corrosion resistance prioritized by automotive, informatics, and aerospace industries in order to fabricate lightweight parts [15,16]. The mixture of this alloy with hard and durable particles can improve the wear resistance and mechanical properties [17]. Molybdenum (Mo) and Silicium (Si) carbide particles, which are frequently preferred reinforcement materials among metal matrix composite materials, strengthen the matrix structure and offer high strength and toughness, and good wear resistance as well as thermal properties [18,19].…”

Section: Introductionmentioning

confidence: 99%

Parametric Optimization for Improving the Machining Process of Cu/Mo-SiCP Composites Produced by Powder Metallurgy

et al. 2021

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The features of composite materials such as production flexibility, lightness, and excellent strength put them in the class of materials that attract attention in various critical areas, i.e., aerospace, defense, automotive, and shipbuilding. However, the machining of composite materials displays challenges due to the difficulty in obtaining structural integrity. In this study, Cu/Mo-SiCP composite materials were produced by powder metallurgy with varied reinforcement ratios and then their machinability was investigated. In machinability experiments, the process parameters were selected as cutting speed (vC), feed rate (f), depth of cut (aP), and reinforcement ratio (RR). Two levels of these parameters were taken as per the Taguchi’s L8 orthogonal array, and response surface methodology (RSM) is employed for parametric optimization. As a result, the outcomes demonstrated that RR = 5%, f = 0.25 mm/rev, aP = 0.25 mm, vC = 200 m/min for surface roughness, RR = 0%, f = 0.25 mm/rev and aP = 0.25 mm and vC = 200 m/min for flank wear and RR = 0%, f = 0.25 mm/rev, aP = 0.25 mm, vC = 150 m/min for cutting temperature for cutting temperature and flank wear should be selected for the desired results. In addition, ANOVA results indicate that reinforcement ratio is the dominant factor on all response parameters. Microscope images showed that the prominent failure modes on the cutting tool are flank wear, built up edge, and crater wear depending on reinforcement ratio.

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“…Surprisingly, the addition of 5.0 vol% of SiC led to a 31% lower friction coefficient and 45% lower specific wear rate than pure Al6061. The friction coefficient of 5.0 vol% SiC/Al6061 was much lower than that of the 12.0 vol% SiC particle-reinforced Al6061 composite 48 , which is attributed to the higher strengthening efficiency of the CNT-templated SiC nanotubes compared with other types of SiC reinforcements. The templated SiC/Al composite has markedly superior interfacial bond strength between the SiC and Al matrix than the other types of SiC reinforcement.…”

Section: Mechanical Properties and Mechanical Behaviors Of Sic@cnt/almentioning

confidence: 84%

Enhanced mechanical and wear properties of Al6061 alloy nanocomposite reinforced by CNT-template-grown core–shell CNT/SiC nanotubes

Yoo

Kang

Trinh

et al. 2020

Sci Rep

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Novel one-dimensional template-grown coaxial SiC@carbon nanotubes (SiC@CNTs) were fabricated using a chemical vapor deposition method. To facilitate the formation of SiC on CNT template, a molecular-level mixing process was used to coat the surface of commercial multiwalled carbon nanotubes (MWCNTs) by Fe 2 o 3. These Fe-CNTs were transformed into SiC@CNT nanotubes, which were then mixed with Al6061 alloy and consolidated by spark plasma sintering to obtain Al6061-SiC@ CNT nanocomposites. The addition of 5 vol% SiC@CNT resulted in 58% enhancement in Young's modulus and 46% enhancement in yield strength. Furthermore, the friction coefficient was reduced by 31% and the specific wear rate was reduced by 45%. The enhancement effect of Al6061-SiC@CNT on the mechanical and tribological properties was much greater than those of traditional nanoparticles, nanowires, and whiskers of SiCs. The extraordinary strengthening behavior of SiC@CNT, when compared with that of other SiC analogues, is attributed to the coaxial structure consisting of a SiC shell and CNT core. This coaxial structure enhanced the mechanical and tribological properties beyond that attainable with traditional SiC-derived reinforcements. Metal-matrix composites (MMCs) are increasingly being used in aerospace and automobile industries due to their excellent properties, such as elastic modulus, hardness, tensile strength, and wear resistance 1,2. Commonly used metallic matrices include Al, Mg, Ti, and their alloys. Generally, alloys are the preferred matrix materials for MMCs, due to possibilities to additional strengthening effects and flexible property design. For MMCs, fibers, whiskers, and particulates are commonly used as reinforcements 2,3. Amongst the alloy systems, Al6061 alloy is a popular choice as a matrix material, due to their high corrosion resistance and strength, which enables the material to be used in various structural applications, including automotive, construction, and marine engineering 4. The various properties of these alloys can be further enhanced by the addition of reinforcement materials, such as alumina (Al 2 O 3) and silicon carbide (SiC), which has led to the development of highly strong metal matrix composite materials with tailorable properties for specific applications. Among the ceramic reinforcements, SiC has been the most widely investigated 5-8. SiC has excellent properties including high electron mobility, high thermal conductivity, high tolerance for electrical breakdown, high hardness, and high mechanical strength 9. Many researchers have reported enhanced mechanical and wear properties of Al6061 alloys reinforced with SiCs 10-15. For example, Kumar et al. 12 reported fabrication of SiC particle reinforced Al6061 alloy composites by liquid metallurgy route via stir casting technique. In the present study, the authors suggest that the addition of SiC particles have significantly enhanced both mechanical and wear properties of the resulting composites. Yu

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Wear and mechanical properties of Al6061/SiC/B4C hybrid composites produced with powder metallurgy

Cited by 106 publications

References 24 publications

Analysing the Microstructures and Pin-on-Disc Wear Properties of 1010 Steel-Based and B<sub>4</sub>C-Added Materials Produced through Powder Metallurgy

Analysing the Microstructures and Pin-on-Disc Wear Properties of 1010 Steel-Based and B<sub>4</sub>C-Added Materials Produced through Powder Metallurgy

Parametric Optimization for Improving the Machining Process of Cu/Mo-SiCP Composites Produced by Powder Metallurgy

Enhanced mechanical and wear properties of Al6061 alloy nanocomposite reinforced by CNT-template-grown core–shell CNT/SiC nanotubes

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Wear and mechanical properties of Al6061/SiC/B4C hybrid composites produced with powder metallurgy

Cited by 106 publications

References 24 publications

Analysing the Microstructures and Pin-on-Disc Wear Properties of 1010 Steel-Based and B&lt;sub&gt;4&lt;/sub&gt;C-Added Materials Produced through Powder Metallurgy

Analysing the Microstructures and Pin-on-Disc Wear Properties of 1010 Steel-Based and B&lt;sub&gt;4&lt;/sub&gt;C-Added Materials Produced through Powder Metallurgy

Parametric Optimization for Improving the Machining Process of Cu/Mo-SiCP Composites Produced by Powder Metallurgy

Enhanced mechanical and wear properties of Al6061 alloy nanocomposite reinforced by CNT-template-grown core–shell CNT/SiC nanotubes

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Analysing the Microstructures and Pin-on-Disc Wear Properties of 1010 Steel-Based and B<sub>4</sub>C-Added Materials Produced through Powder Metallurgy

Analysing the Microstructures and Pin-on-Disc Wear Properties of 1010 Steel-Based and B<sub>4</sub>C-Added Materials Produced through Powder Metallurgy