Tribological performance of heavy-duty functionally gradient friction material (Cu-Sn-Fe-Cg-SiC-Al2O3) synthesized by PM route

Kannan, K. Rajesh; Vignesh, R. Vaira; Kalyan, Kota Pavan; Jayaprakash, M.; Megalingam, A.; Padmanaban, R.; Govindaraju, M.

doi:10.1063/1.5117916

Cited by 11 publications

(14 citation statements)

References 25 publications

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“…Also, the absence of porosity and micro-defects established good bonding between the Cu and SS304 fibers. The microhardness of the Cu matrix and SS304 fibers were found to be 68±2.3 HV0.3 and 163±3.1 HV0.3 respectively, which is consistent with the available literature [15,16,[27][28][29].…”

Section: Microstructure and Microhardnesssupporting

confidence: 90%

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Tribological Performance of the Continuous Steel Fiber-reinforced Cu based Friction Material for Heavy-duty Braking Applications

et al. 2022

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Brake pads are the major components of the wind turbine, which primarily consists of metal matrix and ceramic reinforcements. The ceramic particles plunge out during the application of brakes, which in turn leads to the transformation of the wear mechanism from adhesive to abrasive wear. This increases the wear rate and therefore the study investigates the possible replacement of ceramic reinforcements with continuous fibers that exhibit high strength and compatibility. In recent years, Cu-based brake pads that are fabricated by powder metallurgy route are widely used in wind turbines. In this study, continuous fibers of stainless steel SS304 are reinforced in the Cu matrix by the casting method to preserve the fiber alignment. The fabricated composite is characterized for microstructure, microhardness, and tribological behavior. Besides, a comprehensive analysis of the wear mechanism in the developed composite is presented based on the surface morphology, elemental composition, and phase analysis.

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Section: Microstructure and Microhardnesssupporting

confidence: 90%

“…Specimen subjected to 1 kg load had the highest wear rate of 1.0036×10 -6 g/Nm while the specimen subjected to 3 kg load had the least wear rate of 1.3831×10 -7 g/Nm. The wear rate of the specimen was lesser than the conventional brake pads at all loading conditions [8,17].…”

Section: Wear Rate Of the Composite Specimenmentioning

confidence: 83%

Tribological Performance of the Continuous Steel Fiber-reinforced Cu based Friction Material for Heavy-duty Braking Applications

et al. 2022

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Section: Resultsmentioning

confidence: 90%

“…26 The average wear rate was decreased by 84% the specimen was compared with the TR50 tribological condition of previous literature works. 26 When these results were compared with the conventional brake pads, which were currently used in the wind turbine, the wear rate was decreased by an order of 10 3 . 1 At 70 N normal load, the average wear rate was calculated to be 6.9 3 10 28 g/Nm which was 55% higher than the specimen worn at 30 N. As the normal load was increased from 30 to 90 N, a massive increase in wear rate was observed.…”

Section: Wear Ratementioning

confidence: 90%

Tribological characterization of functionally gradient wind turbine brake pads reinforced with rare earth metal oxide

Muralidharan

Ramalingam

Govindaraju

2023

Proceedings of the Institution of Mechanical Engineers, Part C:

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Copper-based brake pad materials with various fractions of praseodymium oxide and yttrium oxide are fabricated through the powder metallurgy processing technique. The influence of praseodymium oxide and yttrium oxide on the microstructure, microhardness, and tribological characteristics of the fabricated specimens are analyzed. The specimen with desired density, high hardness, wear resistance, and optimal friction coefficient is fabricated with gradient layers (pure copper at the brake pad – brake caliper interface and composite at the brake pad – brake disc interface). The result suggested that as the load gradually increases, the wear rate also increases. The surface morphology, elemental composition, and phase composition of the fabricated specimen and worn surface were characterized using advanced instrumental characterization.

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“…The specimens were cleaned and degreased using ethanol in an ultrasonicator and weighed before and after the test. The wear test was performed at the following test parameters: Normal load of 10 kg, sliding velocity of 5.5 m/s, and sliding distance of 3300 m. [16][17][18][19][20] The frictional force was measured continuously during the sliding period and the variation in frictional force (friction coefficient) was analyzed. The average wear rate and average friction coefficient of three specimens were calculated using equation (1) and equation (2) respectively.…”

Section: Tribological Characterizationmentioning

confidence: 99%

Development of fly ash based friction material for wind turbines by liquid phase sintering technology

Kannan

Govindaraju

Vignesh

2020

Proceedings of the Institution of Mechanical Engineers, Part J:

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Fly ash based sintered materials are identified as potential brake pad materials for wind turbines. However, fly ash based friction materials fabricated through conventional techniques results in more porosity and undesirable tribological properties. This study attempts to develop liquid phase sintering technology for fly ash using Cu as a liquid phase sintering agent. The study presents a comprehensive analysis of the evolution of microstructure, microhardness, and tribological performance of the specimens sintered in Argon and Air environment.

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Tribological performance of heavy-duty functionally gradient friction material (Cu-Sn-Fe-Cg-SiC-Al2O3) synthesized by PM route

Cited by 11 publications

References 25 publications

Tribological Performance of the Continuous Steel Fiber-reinforced Cu based Friction Material for Heavy-duty Braking Applications

Tribological Performance of the Continuous Steel Fiber-reinforced Cu based Friction Material for Heavy-duty Braking Applications

Tribological characterization of functionally gradient wind turbine brake pads reinforced with rare earth metal oxide

Development of fly ash based friction material for wind turbines by liquid phase sintering technology

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