An experimental and analytical study of the effect of water and its tribochemistry on the tribocorrosive wear of boundary lubricated systems with ZDDP-containing oil

Abstract

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Study of the interfacial mechanism of ZDDP tribofilm in humid environment and its effect on tribochemical wear; Part I: Experimental

“…It was attributed to the interference of water with additive on the contacting surface due to the fact that water molecules prevent the ZDDP molecules to attach to the surface and changing the tribochemical reactions and reducing the progress of the formation of tribofilm. The same trends was observed recently by Parsaeian et al [4] . They suggested that by increasing the water concentration in the oil-containing ZDDP from 0 Wt% to 3 Wt%, the growth rate of the tribofilm is reduced significantly.…”

“…It was shown that the wear behaviour of the tribological system depends on the properties of the reaction layer formed on the surface. [4,[6][7][8].…”

“…The effect of water on tribofilm characteristics has been the subject of recent studies [4,[9][10][11].…”

“…It can affect the tribological performance in different ways shown in Figure 1 [4] . A comprehensive study of the adverse effects of water on oil-lubricated tribological systems has been done by Parsaeian et al [4] and Lancaster et al [5] .…”

A new insight into the interfacial mechanisms of the tribofilm formed by zinc dialkyl dithiophosphate

“…The hypothesis was based on the experimental observations of removal of the tribofilm and wear of the system even in the presence of fully-formed tribofilms [17,31,36]. The wear hypothesis was then validated against some wear measurements in experiments [37,38] and has shown good agreement.…”