Friction and wear in silicon nitride-steel and cemented carbide-steel pairs in lubricated sliding

Friction and wear behaviour of cemented carbides

“…In order to measure wear rate, a method described below was developed that includes experimental tests based on block-on-ring linear contact. The bibliography shows several studies about sliding wear behaviour of WC-Co hardmetals in different sliding wear conditions [10][11][12]. The wear resistance of cemented carbide work was found to be greatly dependent on bulk hardness of the tool material [13].…”

Sliding wear and friction behaviour of WC‐stainless steel and WC–Co composites

“…WC‐based hardmetals are known for their excellent hardness, fracture toughness and wear resistance 1–4 . Understanding the wear behaviour of WC‐based hardmetals is fundamental to hardmetal operation 5–11 . These hardmetals are therefore used in a wide range of applications where wear resistance is very important, such as mining and mineral extraction operations and also as cutting tools 12,13 .…”

“…[1][2][3][4] Understanding the wear behaviour of WC-based hardmetals is fundamental to hardmetal operation. [5][6][7][8][9][10][11] These hardmetals are therefore used in a wide range of applications where wear resistance is very important, such as mining and mineral extraction operations and also as cutting tools. 12,13 In many practical applications, a compromise between hardness and toughness is of crucial importance.…”

Effects of Sulfur and a Lubricity Improver on the Tribological Characteristics of Si3N4 Ceramics against Steel in Fuel

“…On the other hand, there are many papers on the effect of sulfur on the tribological behavior of Si 3 N 4 ceramics against steel in lubricant oils. It is well known that trace sulfur species‐containing oils are decomposed during friction and react with iron on the steel surface, forming an iron–sulfur compound film 8–10 …”

“…It is well known that trace sulfur species-containing oils are decomposed during friction and react with iron on the steel surface, forming an iron-sulfur compound film. [8][9][10] Zhao et al 9 evaluated the friction and wear properties of a Si 3 N 4 pin against a rotating steel disk at room temperature in paraffin containing 2% sulfurized olefin as an extreme pressure additive. The friction coefficient decreased slightly with the addition of the sulfurized olefin, while the wear of the Si 3 N 4 decreased dramatically.…”