Full definition
The progressive loss of material from a surface caused by hard particles (mineral, ceramic, or metalite) sliding, rolling, or impacting against the surface. Abrasive wear is the dominant wear mechanism in mining, quarrying, cement, agriculture, and earth-moving industries, responsible for estimated annual costs exceeding $100 billion globally. Classification: (1) Low-angle erosion (<30° impact) — fine particles sliding along surface; hardness governs resistance; steel, ceramic, and chrome excel. (2) High-angle impact (>45°) — particles impacting perpendicular or near-perpendicular; resilience governs resistance; rubber (especially NR) outperforms steel by 5-10x because it absorbs impact energy elastically. (3) Gouging — large particles under high stress; toughness governs resistance; austenitic manganese steel (Hadfield) work-hardens under impact. Measurement: volume loss in mm³ (laboratory, per ASTM G65 dry sand or DIN 53516 rubber abrasion), or thickness loss in mm/year (field). Material selection for abrasion resistance must consider the wear mechanism, particle characteristics, and operating conditions — no single material is best for all abrasion types. Per ASTM G65, ASTM G76, and DIN 53516 for testing methodology.