Gleitverschleiss-untersuchungen an metallen und nichtmetallischen hartstoffen unter wirkung körniger stoffe

Abstract

Investigations on sliding wear of different metallic and hard nonmetallic materials by the abrasive paper- and the wear-pot method have been carried out. The abrasive particles glass, flint, corundum and silicon carbide had a hardness between VHN = 500 and 2700 kg/mm 2. For the wear of pure metals and carbon steels low/high-level characteristics were found. For the nonmetallic materials somewhat different results were obtained. Besides the influence of material hardness and modulus of elasticity, the effect of cold working and that of age hardening were tested in the case of a copper-beryllium alloy. In addition there were some researches on the action of a higher content of residual austenite for steels. Surface films formed in normal atmosphere cause partially dissimilar amounts of wear in respect to the behaviour in a vacuum of about 10 −4 torr. The film formation is dependent on the cold working of the material.