Dry sliding wear studies of aluminum matrix hybrid composites

Monikandan, V. V.; Joseph, M. A.; Rajendrakumar, P. K.

doi:10.1016/j.reffit.2016.10.002

Cited by 53 publications

(33 citation statements)

References 23 publications

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“…Higher percentage of the reinforcing agents in the matrix generally deteriorates the properties of the composites by forming oxide inclusions and porosity within the samples. Hence, a lower wt% of the constituents in the composite design was conceptualized in order to achieve the best performance of Graphite and MoS2 in the presence of SiC [10,11].…”

Section: Methodsmentioning

confidence: 99%

“…Cylindrical wear pins were prepared from three different sections of the composite castings to conduct wear test under dry sliding test condition in accordance with ASTM G-99 standard using a pin-on-disc tribometer (shown in Figure 2). The selection of these testing parameters for the wear analysis was made based on the erstwhile studies [11,12]. Before each experiment, the specimens were preheated and cooled to room temperature and the steel disc was ensured clean and dry.…”

Section: Tribological Properties (Dry Sliding Wear Testing)mentioning

confidence: 99%

“…The addition of these particulates have found to improve the properties of commonly used matrix alloys of series 2xxx, 5xxx, 6xxx and 7xxx (wrought alloys) through various strengthening mechanisms. However, to improve the tribological performance of the AMCs, researchers have used soft phase solid lubricating agents such as Graphite and MoS2 [10][11][12]. A few of the proven applications of the AMCs include pistons, connecting rods, brake drums and rotors, braking systems of trains and cars, recreational products such as golf club shaft and head, skating shoe, baseball shafts, horseshoes and bicycle frames etc [13][14][15].…”

Section: Introductionmentioning

confidence: 99%

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Investigations on the Tribological Performance of A390 Alloy Hybrid Aluminum Matrix Composite

Edacherian¹,

Algahtani²,

Tirth³

2018

Preprint

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Several challenges stand in the way of production of Metal Matrix Composites (MMCs) such as higher processing temperatures, particulate mixing, particulate-matrix interface bonding issues and ability to process into desired geometrical shapes. Although there are many literatures showing composites with single particulate reinforcements, the studies on composites with multiple reinforcing agents (hybrid composites) are found to be limited. Development of a hybrid particulate composite with optimized mechanical and tribological properties is very significant to suit modern engineering applications. In this study, Al-Si hypereutectic alloy (A390) is used as the matrix and Silicon Carbide (SiC) and Graphite (Gr) and Molybdenum di-Sulphide (MoS2) are used as particulates. Particulate volume (wt%) is varied and sample test castings are made using squeeze casting process through stir casting processing route. The evaluation of mechanical properties indicates that presence of both the hard phase (SiC) and the soft phase has distinct effect on the properties of Hybrid Composite. Composite samples were characterized to understand the performance and to meet the tribological applications. Fractography study indicated an intra-granular brittle fracture for hybrid composites. Wear study shows that Hybrid MMCs has better tribological performance compared to that of A390 alloy.

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Section: Methodsmentioning

confidence: 99%

Section: Tribological Properties (Dry Sliding Wear Testing)mentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Investigations on the Tribological Performance of A390 Alloy Hybrid Aluminum Matrix Composite

Edacherian¹,

Algahtani²,

Tirth³

2018

Preprint

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“…Hybrid AMCs with different synthetic ceramic particles, such as silicon carbide (SiC), aluminum oxide (Al 2 O 3 ), boron carbide (B 4 C), tungsten carbide (WC), graphite (Gr), carbon nanotubes (CNT), and silica (SiO 2 ) [14,15], have been developed primarily for performance optimization with less consideration of production costs. Monikandan et al [16] investigated the mechanical and tribological properties of AA6061-B4C-MoS 2 hybrid composites. These hybrid composites are self-lubricating so they can be made into efficient materials at the source.…”

Section: Introductionmentioning

confidence: 99%

Mechanical and corrosion properties of AlCu matrix hybrid composite materials

Islak

2019

Sci Sintering

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In this study, AlCu matrix hybride composites with various ratios of boron carbide (B4C), hexagonal boron nitride (hBN), and graphite (Gr) were produced by using hotpressing method. The microstructure, density, mechanical and corrosion properties of these composites were investigated. Optical microscopy, scanning electron microscopy, and X-ray diffraction were used to characterize the microstructures, and the experimental densities of the composites were measured using a helium pycnometer. The mechanical properties including the hardness and transverse rupture strength were investigated using hardness and three-point bending tests, respectively. In addition, the hybrid composites were immersed in an aqueous solution of 3.5 wt.-percent NaCl at pH 3 for potentiodynamic and corrosion rate measurements. These tests revealed that a microstructure in which reinforcing particles are almost homogeneously dispersed in the matrix was obtained. Density measurements have shown that very dense and compact hybrid AMCs are produced. The hardness and transverse rupture strength of the composites were significantly increased by particulate addition to the matrix. Depending on the type and amount of reinforcement material, differences in the corrosion resistance of the hybrid composites have been determined. The results show that AlCu-8B 4 C-2Gr hybrid composite material has the highest corrosion resistance among the composite materials.

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“…The addition of these particulates have been found to improve the properties of commonly used matrix alloys of series 2xxx, 5xxx, 6xxx and 7xxx (wrought alloys) through various strengthening mechanisms. However, to improve the tribological performance of the AMCs, researchers have used soft-phase solid lubricating agents such as graphite and MoS 2 [10,11,12]. A few proven applications of AMCs include pistons, connecting rods, brake drums and rotors, braking systems of trains and cars, and recreational products such as golf club shafts and heads, ice-skating shoes, baseball shafts, horseshoes, bicycle frames, etc.…”

Section: Introductionmentioning

confidence: 99%

Investigations of the Tribological Performance of A390 Alloy Hybrid Aluminum Matrix Composite

2018

View full text Add to dashboard Cite

Several challenges stand in the way of the production of metal matrix composites (MMCs) such as higher processing temperatures, particulate mixing, particulate–matrix interface bonding issues, and the ability to process into desired geometrical shapes. Although there are many studies showing composites with single particulate reinforcements, studies on composites with multiple reinforcing agents (hybrid composites) are found to be limited. Development of a hybrid particulate composite with optimized mechanical and tribological properties is very significant to suit modern engineering applications. In this study, Al–Si hypereutectic alloy (A390) was used as the matrix and silicon carbide (SiC), graphite (Gr), and molybdenum di-sulphide (MoS2) were used as particulates. Particulate volume (wt %) was varied and sample test castings were made using a squeeze casting process through a stir casting processing route. The evaluation of the mechanical testing indicates that the presence of both the hard phase (SiC) and the soft phase had distinct effect on the properties of the hybrid aluminum matrix composites (HAMCs). Composite samples were characterized to understand the performance and to meet the tribological applications. The 3D profilometry of the fractured surfaces revealed poor ductility and scanning electron microscopy fractography study indicated an intra-granular brittle fracture for HAMCs. Also, the dry sliding wear tests indicated that the newly developed HAMCs had better tribological performance compared to that of A390 alloy.

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Dry sliding wear studies of aluminum matrix hybrid composites

Cited by 53 publications

References 23 publications

Investigations on the Tribological Performance of A390 Alloy Hybrid Aluminum Matrix Composite

Investigations on the Tribological Performance of A390 Alloy Hybrid Aluminum Matrix Composite

Mechanical and corrosion properties of AlCu matrix hybrid composite materials

Investigations of the Tribological Performance of A390 Alloy Hybrid Aluminum Matrix Composite

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