Experimental analysis and modelling for reciprocating wear behaviour of nanocomposite coatings

Nazir, Mian Hammad; Khan, Zulfiqar Ahmad; Saeed, Adil; Bakolas, Vasilios; Braun, Wolfgang; Bajwa, Rizwan

doi:10.1016/j.wear.2018.09.011

Cited by 20 publications

(17 citation statements)

References 62 publications

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“…High magnification images of the prepared nanocomposite coating are presented in Figure 2. The microstructure of the prepared Ni–Al 2 O 3 nanocomposite coating is similar to the microstructure reported by various other researchers [74,75,76,81]. The high magnification image shown in Figure 2a shows that there are pores on the surface of the electrodeposited nanocomposite coating.…”

Section: Experimentationsupporting

confidence: 84%

“…AISI 52100 steel is a common material tested by researchers [35,37,42,43,45,46,50,58,61,78,79,80] when experimentally assessing the friction and wear performance of refrigerants, as it a common metal used in compressors. EN1A steel has shown good adhesion properties as a substrate for depositing Nano Ni–Al 2 O 3 coatings using pulse current [74,75,76,77,81] and is also cheaper and easily available, in contrast to other specialized metals.…”

Section: Methodsmentioning

confidence: 99%

“…The high magnification image shown in Figure 2a shows that there are pores on the surface of the electrodeposited nanocomposite coating. These pores are a characteristic of Ni–Al 2 O 3 nanocomposite coatings [76]. Figure 2b shows the nanocomposite coating after the application of false color to the Scanning Electron Microscope (SEM) image.…”

Section: Experimentationmentioning

confidence: 99%

“…Nanostructured design obtained by the dispersion of nano particles into a matrix has been demonstrated in enhancing optical, electrical, thermal and mechanical properties in comparison to conventionally used metallic materials [66,67,68]. A number of studies [69,70,71,72,73,74,75,76,77] have been performed by various different researchers to investigate the mechanical, wear, friction and corrosion performance of electrodeposited Nano Ni–Al 2 O 3 coatings under a number of different environments and testing conditions. These studies have shown that electrodeposited Nano Ni–Al 2 O 3 coatings can significantly improve the wear, friction and corrosion performance of rubbing parts.…”

Section: Introductionmentioning

confidence: 99%

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Wear Performance Analysis of Ni–Al2O3 Nanocomposite Coatings under Nonconventional Lubrication

2018

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This article presents a wear study of Ni–Al2O3 nanocomposite coatings in comparison to uncoated steel contacts under reciprocating motion. A ball-on-flat type contact configuration has been used in this study in which a reciprocating flat steel sample has been used in a coated and uncoated state against a stationary steel ball under refrigerant lubrication. The next generation of environmentally friendly refrigerant HFE-7000 has been used itself as lubricant in this study without the influence of any external lubricant. The thermodynamic applications and performance of HFE-7000 is being studied worldwide, as it is replacing the previous generation of refrigerants. No work however has been previously performed to evaluate the wear performance of HFE-7000 using nanocomposite coatings. The wear scar developed on each of the flat and ball samples was studied using a Scanning Electron Microscope (SEM). The micrographs show that a combination of adhesive and abrasive wear occurs when using uncoated steel samples. Micro-delamination is observed in the case of Ni–Al2O3 nanocomposite coatings accompanied by adhesive and abrasive wear. Wear volume of the wear track was calculated using a White Light Interferometer. Energy-Dispersive X-ray Spectroscopic (EDS) analysis of the samples reveals fluorine and oxygen on the rubbing parts when tested using coated as well as uncoated samples. The formation of these fluorinated and oxygenated tribo-films helps to reduce wear and their formation is accelerated by increasing the refrigerant temperature. Ni–Al2O3 nanocomposite coatings show good wear performance at low and high loads in comparison to uncoated contacts. At intermediate loads the coated contacts resulted in increased wear, especially at low loads. This increase in wear is associated with the delamination of the coating and the slow formation of protective surface films under these testing conditions.

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Section: Experimentationsupporting

confidence: 84%

Section: Methodsmentioning

confidence: 99%

Section: Experimentationmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Wear Performance Analysis of Ni–Al2O3 Nanocomposite Coatings under Nonconventional Lubrication

2018

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“…In automobile applications, the braking system is a vital component which requires accurate friction and wear's behavior. Commercial automotive braking systems containing a disc and brake-lining pads ought to fulfill necessities like wear [1][2][3][4]. In past few decades, the researchers investigated the wear behavior of the braking system, even though these are relatively unpredictable owing to the contact variations that exist in the specific and complicated systems [2,3].…”

Section: Introductionmentioning

confidence: 99%

Experimental investigations of reciprocating wear behavior of metal matrix (Ti/TiB) composites

Selvakumar¹,

Ramkumar²,

Mohanraj

et al. 2020

Archiv.Civ.Mech.Eng

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In this paper, the reciprocating wear behavior of titanium-titanium boride composites with 20 and 40 (by vol. %) titanium boride (TiB) particles IS investigated in dry sliding conditions against Al 2 O 3 ceramic balls. The trials have been observed at three loading conditions such as 5, 10 and 15 N load. The composites were processed by three powder metallurgical techniques such as spark plasma sintering (SPS), vacuum sintering (VS) and hot isostatic pressing (HIP). The electron probe microanalysis (EPMA) was used to analyze the homogeneity of Ti and boride phases in the composites. The hardness and indentation fracture resistance were evaluated using nano-indentation technique. The load-depth curves of indents for Ti-TiB shows the deviations of the modulus of elasticity within the spark plasma sintering (SPS), vacuum sintering (VS) and hot isostatic pressing (HIP).The wear resistance of the fabricated samples was analyzed using reciprocating wear tester. The SPS composite (Ti-38.5% TiB) showed lower coefficient of friction (0.07), lower wear volume (0.4368 mm 3) and wear rate (0.000276 mm 3 /m) when compared to HIP and VS, which is attributed to the presence of fine titanium boride needles of high hardness, contributing to improving wear resistance. The surface morphology reveals that the composites processed through spark plasma sintering (SPS) and hot isostatic pressing (HIP) are subjected to minor plastic deformation. The outcome of this work is more beneficial to automotive brake pad, precision manufacturing and locomotives to avoid critical wear failures.

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Studies of Nanomechanical and Wear Testing Methods of Thermal Sprayed Coatings

Ali¹,

Singh²,

Thakare³

et al. 2022

Tribology and Characterization of Surface Coatings

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Experimental analysis and modelling for reciprocating wear behaviour of nanocomposite coatings

Cited by 20 publications

References 62 publications

Wear Performance Analysis of Ni–Al2O3 Nanocomposite Coatings under Nonconventional Lubrication

Wear Performance Analysis of Ni–Al2O3 Nanocomposite Coatings under Nonconventional Lubrication

Experimental investigations of reciprocating wear behavior of metal matrix (Ti/TiB) composites

Studies of Nanomechanical and Wear Testing Methods of Thermal Sprayed Coatings

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