Abrasive wear of iron alloys

B.Sc. Emmanuel Sarfo, BSc

Diplomová práce

Abstract:

Abrasive wear occurs when there is a contact related to stress between a metal surface anda hard particle which leads to friction between the two bodies. Abrasive wear is the mainreason for components and equipments regular repair or replacement in a wide range ofindustrial applications. In most of these applications especially those in the earth moving,construction, mining equipment and agricultural machineries.A wide range of materials were evaluated in the laboratory for abrasive wear resistanceusing the dry rubber wheel testing machine (ASTM G-65). Brinell hardness test wasperformed to determine the hardness property of the materials. Microstructure fracture and worn surfaces were investigated with scanning electronmicroscope and the results show that amount of carbide increases as boron contentincreases. This situation affected positively on material hardness and wear resistancewhiles toughness decreases as boron content increases.

Keywords

Iron alloys, Heat treatment, carbides

Jazyk práce: angličtina

Datum vytvoření / odevzdání či podání práce: 23. 4. 2017

Obhajoba závěrečné práce

• Vedoucí: doc. Ing. Rostislav Chotěborský, Ph.D.
• Oponent: Petr Valášek, doc. Ing.

Česká zemědělská univerzita v Praze

Technická fakulta

Magisterský studijní program / obor:
Technology and Environmental Engineering / Technology and Environmental Engineering