Ultralow friction of PVD TiN coating in the presence of glycerol as a green lubricant

Fu, Xiaojing; Cao, Lei; Qi, Caixia; Wan, Yong; Xu, Chonghai

doi:10.1016/j.ceramint.2020.06.211

Cited by 28 publications

(14 citation statements)

References 46 publications

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“…Considering the specific wear and the wear mechanisms presented above, it can be affirmed that the change from mix mode wear (rolling + grooving) to pure grooving explains the decrease in the specific wear rate with increasing abrasive slurry concentration, since grooving is well known to be a mechanism less efficient in removing materials compared to rolling. Contrary to the literature, where increasing the abrasive slurry concentration favored rolling behavior (for instance, Trezona et al [56]), the grooving wear mechanism established in the current study that the increasing slurry concentration can be explained by the roughness induced on the ball surface by Nital etching. Indeed, due to the increase in abrasive slurry concentration, particles are able to be aggregated easily in the grooves of the surface roughness of the ball, causing more scratching and grooves in the craters.…”

Section: Micro-abrasion Analysiscontrasting

confidence: 99%

“…In the diffraction patterns, two type of phases can be identified: crystalline TiN and Fe, the last coming from signals of the substrate. As already mentioned, the peaks and structure presented are in line with other investigations carried out, where the TiN peaks in the (111), (200), and (220) directions are the most common [30,31,56,57]. On the other hand, less common TiN peaks with less intensity correspond to the (222) and (311) directions [30].…”

Section: Coating Structuresupporting

confidence: 90%

“…The following hardness and Young's modulus values were achieved: 18.14 GPa and 259.59 GPa, respectively. In comparison with other works, Young's modulus presents a value 17% lower than that reported by [56] and 8% lower than [57].…”

Section: Micro-hardnesscontrasting

confidence: 78%

“…Figure 4 shows the X-ray diffraction pattern conducted at the film. The spectrum does not reveal significant differences in the structure as compared to other TiN coatings deposited by the same technique studied in the literature [30,31,56,57].…”

Section: Coating Structurementioning

confidence: 54%

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Study on the Micro-Abrasion Wear Behavior of PVD Hard Coating under Different SiC Abrasive Particles/Distilled Water Ratios

et al. 2023

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Microscale abrasion has been intensively used to study the wear behavior o several hard coatings, enabling the observation of different wear mechanisms. Recently, a study arguing whether the surface texture of the ball could influence the dynamics of abrasive particles throughout the contact was presented. In this work, the influence of the abrasive particles concentration able to change the texture of the ball was studied to understand its influence on the wear modes—rolling or grooving. Thus, tests were carried out using samples with a thin coating of TiN, deposited using the Physical Vapor Deposition (PVD) technique, and AISI 52100 steel balls etched over 60 s to induce a change in their texture and roughness were used. Three abrasive slurries were prepared with black silicon carbide (SiC) particles (average particle size of 4 μm) with different concentrations, 0.25, 0.35, and 0.45 g/cm3. The rotation speed used in the tests was 80 rpm and the normal loads applied in the study were 0.2 N and 0.5 N, and 1 N. After the wear tests, the coated samples and tracks on the surface of the balls were observed by SEM and 3D microscopy to understand the abrasive particle dynamics, evaluating the wear mode transition as well as the function of both applied load and slurry concentration. The tracks in the balls showed particles embedded on their surface. A lower concentration of abrasion was conducted to higher specific wear rate. Moreover, a predominant two-body wear mechanism was induced when the abrasive concentration was increased. There was an increase in the roughness of the scar and the surface of the balls with an increase in the abrasive particles’ concentration.

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Section: Micro-abrasion Analysiscontrasting

confidence: 99%

Section: Coating Structuresupporting

confidence: 90%

Section: Micro-hardnesscontrasting

confidence: 78%

Section: Coating Structurementioning

confidence: 54%

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Study on the Micro-Abrasion Wear Behavior of PVD Hard Coating under Different SiC Abrasive Particles/Distilled Water Ratios

et al. 2023

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“…Thus, there is a need to use green lubricants which can be completely degraded and are pollutionfree while ensuring the lubrication effect. Previous studies have shown that a variety of materials show a low friction and wear under glycerol lubrication [25][26][27][28][29][30]. It is, therefore, interesting to investigate the compatibility of glycerol with CrCN coating.…”

Section: Introductionmentioning

confidence: 99%

Effect of Carbon Target Current on Ultralow Frictional Behavior of CrCN Coatings under Glycerol Lubrication

Liu

Gao²,

et al. 2021

Coatings

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The aim of this paper is to find an effective way to reduce the friction and wear of steel. CrCN coating was deposited on AISI 304 stainless steel by magnetron sputtering technology, and the friction and wear properties of the coating under glycerol lubrication were studied. The hardness of CrCN coatings on stainless steel surface can reach to 17.87 GPa when the carbon target deposition current is 2A. The CrCN coating presents low friction coefficient (COF) under the lubrication of glycerol, a highly efficient green lubricant. When the load is 0.5 N, the lowest friction coefficient is only 0.01. XPS analysis on the wear track suggested that glycerol decomposed during sliding and a fluid lubricating layer was formed, which provides ultralow friction. The paper shows that the glycerol could be used as an efficient lubricant for the CrCN coating.

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Effect of Microstructure on the Tribo-mechanical and Wear Behaviour of Thin PVD Films: A Review

Vats¹,

Patnaik

Meena

et al. 2021

Lecture Notes in Mechanical Engineering

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Ultralow friction of PVD TiN coating in the presence of glycerol as a green lubricant

Cited by 28 publications

References 46 publications

Study on the Micro-Abrasion Wear Behavior of PVD Hard Coating under Different SiC Abrasive Particles/Distilled Water Ratios

Study on the Micro-Abrasion Wear Behavior of PVD Hard Coating under Different SiC Abrasive Particles/Distilled Water Ratios

Effect of Carbon Target Current on Ultralow Frictional Behavior of CrCN Coatings under Glycerol Lubrication

Effect of Microstructure on the Tribo-mechanical and Wear Behaviour of Thin PVD Films: A Review

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