Wear resistance and tribological features of pure aluminum and Al–Al2O3 composites consolidated by high-pressure torsion

Edalati, Kaveh; Ashida, Maki; Horita, Zenji; Matsui, Toshiaki; Kato, Hirotaka

doi:10.1016/j.wear.2013.12.022

Cited by 89 publications

(41 citation statements)

References 61 publications

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“…In this case, the depth of subsurface deformation is the same, irrespective of the sliding distance, unlike graphite-free composites. The microhardness and depth of subsurface deformation in the Al/SiC/Gr composite are lower than those in Al/SiC composites under all tested conditions, because the graphite layers decrease the magnitude of shear stress transferred to the matrix underneath the surface film [71,72]. [73].…”

Section: Surface and Subsurface Behaviormentioning

confidence: 82%

“…Thereafter, the variation in the microhardness of the subsurface zone disappears in Zone 3. The increased hardness of Zone 1 may be attributed to the higher oxidation of the transferred material at the interface and the presence of surface film on the wear surface [13,71,72]. The variation in hardness of the wear surface of the Al/SiC composite at a sliding speed of 4.6 m/s is presented in Fig.…”

Section: Surface and Subsurface Behaviormentioning

confidence: 98%

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Fabrication characteristics and tribological behavior of Al/SiC/Gr hybrid aluminum matrix composites: A review

Singh

2016

Friction

115

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Improvement in surface properties and retainment of bulk properties are essential requirements for the design of components for wear resistance applications. This paper summarizes various features of Al/SiC/Gr hybrid composites that can be employed in different tribological applications. The study has revealed that the processing route plays a significant role in obtaining a homogeneous structure of these composites. In powder metallurgy, the selection of sizes of the matrix and reinforcement powders is crucial, whereas the wettability between the reinforcement particles and molten alloy is a major challenge in liquid metallurgy. The incorporation of SiC particles increases the mechanical strength and wear performance of Al composites. However, ejection of these particles can reduce the wear performance of Al composites under severe conditions. The addition of Gr particles helps in the formation of a thick and extensive tribolayer on the wear surface. This layer reduces direct contact between the rubbing surfaces, thereby decreasing the wear rate under certain conditions. Morphological analysis of worn surfaces has confirmed that the hybrid composites exhibit superior wear properties than the pure Al alloy and the ceramic-reinforced composite. However, increase in the Gr content beyond a limiting value can deteriorate the tribological properties of these composites. Therefore, true optimization of a tribosystem (of the hybrid composite and counterface) can be achieved by selecting appropriate reinforcement contents.

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Section: Surface and Subsurface Behaviormentioning

confidence: 82%

Section: Surface and Subsurface Behaviormentioning

confidence: 98%

Fabrication characteristics and tribological behavior of Al/SiC/Gr hybrid aluminum matrix composites: A review

Singh

2016

Friction

115

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“…As these previously ECAPed processed parts have a lower value of wear, a lower loss of volume [21][22][23][24] is obtained in the parts. In addition, a great deal of attention has been paid to the wear resistance of copper [25][26][27] and copper alloys [28] processed by severe plastic deformation processes.…”

Section: Introductionmentioning

confidence: 86%

“…In [21][22][23] ECAP is employed as a method to obtain ultrafine grain size in the billets while in [24] the SPD process known as High-Pressure Torsion (HPT) is employed. Moreover, the method mainly employed to analyse the wear in these parts is ball-on-disk [21,22,24].…”

Section: Introductionmentioning

confidence: 99%

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Analysis of Fatigue and Wear Behaviour in Ultrafine Grained Connecting Rods

Luri

Luis

León

et al. 2017

Metals

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Abstract:Over the last few years there has been an increasing interest in the study and development of processes that make it possible to obtain ultra-fine grained materials. Although there exists a large number of published works related to the improvement of the mechanical properties in these materials, there are only a few studies that analyse their in-service behaviour (fatigue and wear). In order to bridge the gap, in this present work, the fatigue and wear results obtained for connecting rods manufactured by using two different aluminium alloys (AA5754 and AA5083) previously deformed by severe plastic deformation (SPD), using Equal Channel Angular Pressing (ECAP), in order to obtain the ultrafine grain size in the processed materials are shown. For both aluminium alloys, two initial states were studied: annealed and ECAPed. The connecting rods were manufactured from the previously processed materials by using isothermal forging. Fatigue and wear experiments were carried out in order to characterize the in-service behaviour of the components. A comparative study of the results was made for both initial states of the materials. Furthermore, Finite Element Modelling (FEM) simulations were used in order to compare experimental results with those obtained from simulations. In addition, dimensional wear coefficients were found for each of the aluminium alloys and initial deformation states. This research work aims to progress the knowledge of the behaviour of components manufactured from ultrafine grain materials.

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Friction and Wear Properties of Biocomposites for Dental, Orthopedic, and Biomedical Applications

Gaur,

Muthukumar,

Parthasarathy

2023

Tribological Properties, Performance and Applications of Biocomposites

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Wear resistance and tribological features of pure aluminum and Al–Al2O3 composites consolidated by high-pressure torsion

Cited by 89 publications

References 61 publications

Fabrication characteristics and tribological behavior of Al/SiC/Gr hybrid aluminum matrix composites: A review

Fabrication characteristics and tribological behavior of Al/SiC/Gr hybrid aluminum matrix composites: A review

Analysis of Fatigue and Wear Behaviour in Ultrafine Grained Connecting Rods

Friction and Wear Properties of Biocomposites for Dental, Orthopedic, and Biomedical Applications

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