Di. Fletcher et al., Wear behaviour and surface form evolution of a novel titanium carbide implanted surface under lubricated conditions, P I MEC E J, 214(J6), 2000, pp. 597-610
Citations number
25
Categorie Soggetti
Mechanical Engineering
Journal title
PROCEEDINGS OF THE INSTITUTION OF MECHANICAL ENGINEERS PART J-JOURNAL OF ENGINEERING TRIBOLOGY
Tribological behaviour (friction and wear) of heavily loaded lubricated sur
faces is found to be influenced by the presence of very small scale surface
textures. The Indirect Structuring process, which is described here, is a
new method of surface texture production through implantation of a surface
with wear-resistant regions. During use a surface texture is developed and
maintained because, at a given wear rate, the wear-resistant regions can su
stain higher contact pressures than can the substrate.
Indirect Structuring of a tool steel surface was carried out by laser impla
ntation of the surface with titanium carbide implants, and rolling contact
experiments were conducted under elastohydrodynamic and mixed-lubrication r
egimes. It was found that the indirect structuring process produces a surfa
ce structure which fulfils the design requirements for textured tool surfac
es, and which is insensitive to the load applied to the surface. The mechan
isms found to steer the development of the surface texture may be used to d
evelop design methods for application of the Indirect Structuring process.