6533b86dfe1ef96bd12cabf6

RESEARCH PRODUCT

WEAR MECHANISM OF CERAMIC TOOLS

V. F. RuisiS. Lo CastoS. MaschioE. LucchiniE. Lo Valvo

subject

Materials scienceMetallurgychemistry.chemical_elementSurfaces and InterfacesCondensed Matter PhysicsGrain sizeSurfaces Coatings and FilmsWear resistancechemistry.chemical_compoundchemistrySilicon nitrideMechanics of MaterialsTungsten carbidevisual_artMaterials ChemistrySilicon carbidevisual_art.visual_art_mediumCubic zirconiaCeramicTin

description

Abstract Cutting tests were performed using ceramic cutting tools under continuous cutting conditions. The tests were carried out on AISI 1040 steel, with cutting speeds ranging from 5 to 11 m s −1 . The wear mechanism was investigated for both crater and flank. Alumina-toughened zirconia of submicron grain size showed the best wear resistance. Alumina with TiC, TiN and ZrO 2 inclusions exhibited a wear resistance a little lower than the above-mentioned materials. Low chemical stability seems to be the reason for the poor performances of the silicon carbide whiskers-reinforced alumina, silicon nitride and the tungsten carbide inserts.

10.1016/0043-1648(93)90425-lhttp://hdl.handle.net/11390/688551