Studies on high temperature wear and its mechanism of Al–Si/graphite composite under dry sliding conditions

Rajaram, Gukan; Kumaran, S.; Rao, T. Srinivasa; Kamaraj, M.

doi:10.1016/j.triboint.2010.06.004

Cited by 67 publications

(30 citation statements)

References 8 publications

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“…10a. The ploughing action of hard asperities is identified on a counter surface due to increasing load and sliding speed and leads to hardened worn debris [24]. The dark colour has appeared as flakes regions and white colour appear as hollow spheres regions can be seen on worn surface runs parallel to the sliding direction indicating that smooth grooves are occurred on the surface of a material and is shown in Fig.…”

Section: Analysis Of Worn Surfaces Using Semmentioning

confidence: 95%

A novel approach for utilization of agro-industrial waste materials as reinforcement with Al–7Si–0.3Mg matrix hybrid composite on tribological behaviour

Vinod

Ramanathan

Anandajothi³

2018

SN Appl. Sci.

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Waste particles are the huge environmental problem facing today. This paper mainly focuses on utilization of waste particles and aspect of tribology by examining economic, environmental impact on wear loss and coefficient of friction. Aluminium with a different weight fraction of agro (RHA) and industrial (fly ash) waste particulates are fabricated by double stir-casting process. The dry sliding wear behaviour of Al alloy and aluminium hybrid composites for various applied load, sliding distance with sliding speed on wear rate and friction coefficient was conducted by pin-on-disk apparatus. The hypothesis of this study is decreasing the wear loss and coefficient of friction increasing the lifespan of material and also minimising the cost of material. Limited attempts are made on aluminium with waste particles to examine the effect of sliding wear rate. The A356/7.5%RHA-7.5% fly ash hybrid composite achieved higher wear resistance superior to the as-cast alloy.

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Section: Analysis Of Worn Surfaces Using Semmentioning

confidence: 95%

A novel approach for utilization of agro-industrial waste materials as reinforcement with Al–7Si–0.3Mg matrix hybrid composite on tribological behaviour

Vinod

Ramanathan

Anandajothi³

2018

SN Appl. Sci.

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“…7b). As shown by the literature [L. 15,24], during tribological processes after a given period of time between the counter-sample and the surface of the sample, a graphite film can then be created.…”

Section: Issn 0208-7774 T R I B O L O G I a 1/2017mentioning

confidence: 99%

THE TRIBOLOGICAL CHARACTERISTICS OF Al-Si/GRAPHITE COMPOSITE

et al. 2018

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The paper presents the results of tribological research on AlSi12CuNiMg/5.7 wt.% Gr aluminium composite material (containing graphite particles in the amount of 5.7% wt.%) and on its matrix. This composite is used as high-tech construction material in the automotive industry, particularly for pistons, cylinder liners, and slide bearings. The tribological properties of these materials can be significantly changed as a result of the introduction of graphite particles. Therefore, wear tests have been carried out using the ball-on-disc tribometer. Microstructure and wear resistance of the matrix and composite alloy have been subjected to comparative analysis. It was demonstrated that the composite reinforced with graphite is characterized by a lower friction coefficient and lower wear in comparison to the matrix.

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“…[1][2][3] These alloys are widely used in many engineering applications. 3,4 Their combination of low density and high impact resistance and toughness make them ideal for aerospace, aviation, and automotive applications. 5,6 In addition to these attractive properties, Al-Si alloys have been excellent candidates for processing using laser-based additive manufacturing (AM) technologies, 7,8 which enables the production of lightweight structures known as lattice structures.…”

Section: Introductionmentioning

confidence: 99%

Tomography of 3D-Printed Lattice Structured Aluminum-Silicon Alloy and Its Deformation

Chen

Jha

Raut

et al. 2021

3D Printing and Additive Manufacturing

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Additive manufactured light components are desirable for airspace and automobile applications where failure resistance under contact is important. To date, understanding the nature of subsurface damage in contact is still lacking. In this research, we investigated 3D-printed aluminum-silicon (Al-Si) alloys in the lattice structure under a rolling contact condition. Using the microtomography technique, we were able to construct a 3D image of the lattice structure being plastically deformed. Finite element analysis was conducted about the strain and stress on struts of different dimensions. Results showed that morphology dominated the deformation. The significant factors affecting the deformation were the strut aspect ratio, and their relative diameter. When the aspect ratio of a strut is smaller than 0.5, the plastic deformation is distributed in the subsurface region and when it is larger than 0.5, the deformation concentrates on the top layer of struts. This research indicates that the dimensional parameters of lattice structures can be designed for optimization to achieve higher resistance to deformation.

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Studies on high temperature wear and its mechanism of Al–Si/graphite composite under dry sliding conditions

Cited by 67 publications

References 8 publications

A novel approach for utilization of agro-industrial waste materials as reinforcement with Al–7Si–0.3Mg matrix hybrid composite on tribological behaviour

A novel approach for utilization of agro-industrial waste materials as reinforcement with Al–7Si–0.3Mg matrix hybrid composite on tribological behaviour

THE TRIBOLOGICAL CHARACTERISTICS OF Al-Si/GRAPHITE COMPOSITE

Tomography of 3D-Printed Lattice Structured Aluminum-Silicon Alloy and Its Deformation

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