MICROSTRUCTURAL PROPERTIES OF WEAR-RESISTANT ALLOYS

Microindentation and microscratching are used to gain in situ wear-rel ated properties of hard phases and metal matrices in wear-resistant ir on, nickel and cobalt alloys at room and elevated temperature. Vickers indentations allow to measure the hardness, the work of indentation, the modulus of elasticity, and the fracture toughness. Microscratching reveals the coefficient of scratching, the scratch hardness and the s pecific scratch energy. The results are not meant to predict wear rate s but to meet basic requirements of a wear system.