Computational investigation of microstructural effects on abrasive wear of composite materials

On the Abrasion of Ultrafine WC–Co Hardmetals by Small SiC Abrasive

“…The total wear depends on test conditions and size of abrasive. Recently, it has been demonstrated that the ratio of abrasive size to size of hard phase may be a more efficient formal parameter for analysis of the abrasive wear behaviour than size of abrasive particles [13]. The computational analysis has shown that the wear loss increased with increasing the size ratio and became stable when the ratio reached a certain level, close to the unity.…”

“…The computational analysis has shown that the wear loss increased with increasing the size ratio and became stable when the ratio reached a certain level, close to the unity. This behaviour has been explained in terms of different wearing stress distributions dependending on abrasive particles size [13].…”

Improving Hardness and Toughness of Boride Composites Based on AIMgB₁₄

“…Their results predicted that finer reinforcement particles are more effective against erosion, specifically when the reinforcement is of a much smaller scale than the erodent [97]. Also, a distribution of reinforcement sizes was typically superior to a single size, which is fortuitous since a distribution of sizes can be more easily achieved in real materials [98].…”

“…Wear resistance is a result of not only hardness, but also the toughness of a material. It has been suggested that a microstructure consisting of a multi-modal distribution of reinforcement sizes is more desirable for improving wear resistance than one with rigid size control [98].…”

Friction reduction by water-soluble ammonium thiometallates

“…Organomolybdenum compounds and other organometallic salts have been studied for many years because of their beneficial properties as friction modifiers being used effectively either as powder, protective coating, or lubricant additive in machine elements such as gears, bearings, and metalworking applications [2][3][4][5][6]. The layered-lamella structure of molybdenum is known to give low shear and therefore reduce friction in highly-loaded contacts.…”