Performance and ferrography analysis for determining the wear of an external gear pump

Dhote, Nihal; Khond, Mohan; Sheikh, Shadab; Patange, Abhishek D.

doi:10.1088/1742-6596/1969/1/012015

Cited by 2 publications

(1 citation statement)

References 2 publications

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“…Wear of materials from gear pumps is widespread due to its application in dusty environments and high-pressure applications. 1,2 The wear failure of hydraulic pumps has always been a major problem in terms of safety and economy of the related industries. Due to high-pressure application and fluctuations in operating parameters, corrosion and cavitation wear occurs in hydraulic gear pump.…”

Section: Introductionmentioning

confidence: 99%

Ni-Mo-P coatings on thrust plate of a gear pump to enhance its mechanical, tribological, and corrosion resistance properties

Sharma

Kumar

Das

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part B:

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Thrust plate in an external gear pump is one of the most important element which aligns the rotating gears and prevents the leakage through lateral clearances between rotating and non-rotating surfaces. It acts as a sacrificing element and fails frequently under fluctuating load pressure condition. The present research aims at enhancing the relative mechanical and tribological properties of the sacrificial thrust plate through electroless Ni-Mo-P coatings. Molybdenum (Mo) concentration in the electroless bath were tested for their effects on surface morphology, hardness, phase formation, wear rate, and wettability. A hard and self-lubricating layer (Al, Ni, Si, and Mo phases) on the coated surface was indicated by the compositional analysis performed using EDS and XRD. Results show that the microhardness of the coated surfaces has increased significantly by 149.5% (maximum hardness ~ 183.45 HV0.2) for 32 g L−1 Mo concentration. With 32 g L−1 Mo, the maximum coating thickness and water contact angle were 58 µm and 111°, respectively. The base material’s coefficient of friction was 0.5, whereas it was 0.25, 0.10, 0.06, and 0.03 for the samples made with 8, 16, 24, and 32 g L−1 Mo concentration, respectively. Compared to the uncoated sample, the maximum decrement in corrosion rate was found to be about six to seven times in the coated sample (with 32 g L−1 Mo). As a result, the developed coating surfaces provide hardness, lubricity, hydrophobicity, corrosion, and wear resistance simultaneously. The methodology of surface treatment can be used to modify the surface of critical hydraulic components having significant wear like in case of hydraulic cylinders.

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Section: Introductionmentioning

confidence: 99%

Ni-Mo-P coatings on thrust plate of a gear pump to enhance its mechanical, tribological, and corrosion resistance properties

Sharma

Kumar

Das

et al. 2023

Proceedings of the Institution of Mechanical Engineers, Part B:

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show abstract

Experimentation and 2D Fluid Flow Simulation over an External Gear Pump

Adake,

Dhote,

Khond

2023

J. Phys.: Conf. Ser.

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In this work, the investigation’s goal is to conduct experiments and simulations on the existing gear pump test rig setup. The various parameters are set and observed in the first section of the investigation. Calculations are done using these numbers to obtain the other testing results. Another section simulates 2-D fluid flow over an external gear pump and contrasts the findings of the experiment with the flow rate and efficiency at various discharge pressures. This study provides a clear understanding of the external gear pump’s numerical analysis as well as its actual analysis. For each discharge pressure at the end, a prediction of pressure at various locations within the pump’s fluid domain was made.

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Performance and ferrography analysis for determining the wear of an external gear pump

Cited by 2 publications

References 2 publications

Ni-Mo-P coatings on thrust plate of a gear pump to enhance its mechanical, tribological, and corrosion resistance properties

Ni-Mo-P coatings on thrust plate of a gear pump to enhance its mechanical, tribological, and corrosion resistance properties

Experimentation and 2D Fluid Flow Simulation over an External Gear Pump

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