A universal wear law for abrasion

Siniawski, Matthew T.; Harris, Stephen J.; Wang, Qian

doi:10.1016/j.wear.2006.08.017

Cited by 27 publications

(18 citation statements)

References 35 publications

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“…It has recently been shown that the average abrasion rate is an effective means to represent and compare the wear kinetics of many tribological systems [15]. The average abrasion rate A(n) is represented by…”

Section: Wear Resistancementioning

confidence: 99%

“…The standard deviation for determining the wear volume was less than 10% for all of the tested conditions. A 1 is the abrasion rate (volume of steel removed/ distance travelled) on the first cycle and the value of β controls the cycle dependence (or time dependence) of the abrasion rate and is an empirical constant that satisfies −1 ≤ β < 0 for the commonly encountered case where the abrasion rate decreases with time [15]. The average abrasion rate for all three lubricated conditions are plotted in Figures 1 and 2 vs the number of cycles on a log-log scale for applied loads of 2 and 4 N respectively.…”

Section: Wear Resistancementioning

confidence: 99%

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Influence of fatty acid composition on the tribological performance of two vegetable‐based lubricants

Siniawski

Saniei

Adhikari

et al. 2007

J of Synthetic Lubrication

Self Cite

107

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In light of diminishing natural resources, global climatic change and increased environmental sensitivity, renewable-based lubricants are being considered potential alternatives to petroleum-based lubricants. Understanding the tribological performance of vegetable-based lubricants in relation to their chemical composition is essential for their industrial implementation. This study focuses on the friction and abrasion rate characteristics of soybean and sunflower oils in comparison to a base mineral oil under sliding wear at ambient conditions for various applied loads. It was found that the abrasion rate and friction were the least severe for the soybean, followed by the sunflower oil. The observed trends were attributed to differences in their fatty acid compositions, in particular, a lower percentage of linoleic and oleic acids within the soybean oil.

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Section: Wear Resistancementioning

confidence: 99%

Section: Wear Resistancementioning

confidence: 99%

Influence of fatty acid composition on the tribological performance of two vegetable‐based lubricants

Siniawski

Saniei

Adhikari

et al. 2007

J of Synthetic Lubrication

Self Cite

107

View full text Add to dashboard Cite

show abstract

“…The average abrasion rate A(n) is an effective means to represent and compare the wear kinetics of many tribological systems [19] and is represented by (4) where A(n) is the abrasion rate averaged over the first n cycles, V(n) is the volume of steel removed from the ball during n cycles, d = 2πrn and is the distance travelled by the steel ball over the steel disc at a wear track radius r. A 1 is the abrasion rate during the first cycle and the value of β controls the time-dependence of the abrasion rate and is an empirical constant that follows −1 ≤ β < 0 for the commonly encountered case where the abrasion rate decreases with time [19]. Logarithmic values of the average abrasion rate are plotted as a function of temperature for the dry and lubricated conditions in Figure 1.…”

Section: Surface Wear Evolutionmentioning

confidence: 99%

Tribological degradation of two vegetable‐based lubricants at elevated temperatures

Siniawski

Saniei

Pfaendtner

2007

J of Synthetic Lubrication

Self Cite

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Renewable-based lubricants are being considered as potential alternatives to petroleum-based lubricants for various reasons, mainly increased environmental sensitivity. However, understanding the tribological performance of such vegetable-based lubricants under elevated temperatures is critical for their industrial implementation. This study focuses on the friction and abrasion rate characteristics of soybean and sunflower base oils in comparison to a base mineral oil under sliding wear at elevated temperatures. It was found that the abrasion rate and friction were less severe for the vegetable-based lubricants up to temperatures around 100°C. The observed performance of the vegetable-based lubricants was verified using a kinetic reaction mechanism model of lubricant degradation.

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“…The results of this study therefore suggest that it is still not possible to predict the wear volume based on one or more of the mechanical properties and strain analysis. For an accurate prediction of the quantitative wear of ceramic restorations and their antagonists, further studies are needed to investigate the influence of physical, chemical, and other environmental factors (32,33), in addition to the multiple mechanical factors, on the wear volume of machinable dental ceramics.…”

Section: Discussionmentioning

confidence: 99%

The ball-on-disk cyclic wear of CAD/CAM machinable dental composite and ceramic materials

et al. 2017

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The purpose of this study was to investigate the wear volume and the principal strain of machinable dental composite and ceramics in simulated mastication. A ball-on-disk wear test was performed for 3,000 cycles in water, using nine ball/disk combinations of three commercial CAD/ CAM materials: feldspathic, lithium disilicate glass ceramics, and a highly loaded composite material (n = 7 for each combination). The wear volume was optically measured using a digital scanner and analyzed for statistical differences based on the materials (α = 0.05). We used non-linear finite element analysis to calculate the principal strain. The wear volume of the ball was significantly larger than that of the disk when hardness and fracture toughness of the former was lower than that of the latter and vice versa (P < 0.05). The lithium disilicate glass ceramic constantly showed lower wear volume than the opposing antagonist. Except for the same material pairs of feldspathic and composite, the ball or disk specimen that showed a larger wear in the occluding pair coincided with the one with higher maximum strain. It was not possible to predict the magnitude of wear, whereas the result suggested a strong association between the maximum strain and wear volume of the ceramic surface.

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A universal wear law for abrasion

Cited by 27 publications

References 35 publications

Influence of fatty acid composition on the tribological performance of two vegetable‐based lubricants

Influence of fatty acid composition on the tribological performance of two vegetable‐based lubricants

Tribological degradation of two vegetable‐based lubricants at elevated temperatures

The ball-on-disk cyclic wear of CAD/CAM machinable dental composite and ceramic materials

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