RT Journal Article
T1 Improvement of tribological properties by ion implantation
A1 Oñate, J. I.
A1 Alonso, F.
A1 García, A.
AB Ion implantation is a surface technology process that is emerging as a viable and economical technique for the improvement of tribological properties of engineering components. This treatment is highly versatile for modifying surface properties of materials by a careful selection of ions to be implanted and processing conditions. The study of tribological properties induced by ion implantation has received increasing attention during the last years and a large volume of literature exists on this subject. Most of these reports deal with the effect of selected implantation treatments on steels and other materials of engineering importance, such as titanium and aluminium alloys. This work indicates some of the mechanisms that have been postulated as to account for the beneficial effects of ion implantation on the friction and wear of these materials. The paper also discusses how the modification of surface micro structure and mechanical and chemical properties can significantly influence the tribological performance of engineering materials. The extent of this influence depends on the type of wear and friction mechanisms that are operative in the tribosystem. Some examples are presented on the effect of ion implantation on tribo-mechanical properties of selected materials, including steels, hard chromium coatings and titanium alloys. Under certain operative conditions, ion implantation can lower the adhesion between surfaces and promote a change in operative wear mechanisms during run-in. Results show how ion implantation of carbon at very high doses can lead to the formation of a solid lubricant layer on steels and titanium alloys. C 1s spectra obtained from XPS analyses on these surfaces indicate the presence of graphitic bonds at the near surface with a contribution of carbidic bonds beneath the surface.
SN 0040-6090
YR 1998
FD 1998-04-01
LK https://hdl.handle.net/11556/4166
UL https://hdl.handle.net/11556/4166
LA eng
NO Oñate , J I , Alonso , F & García , A 1998 , ' Improvement of tribological properties by ion implantation ' , Thin Solid Films , vol. 317 , no. 1-2 , pp. 471-476 . https://doi.org/10.1016/S0040-6090(97)00564-6
NO The authors wish to express his gratitude to Dr. J. Luis Viviente, who performed the XPS analyses. Part of this work has been supported by the Spanish `Comisión Interministerial de Ciencia y Tecnologı́a' (CICYT) under Project No. MAT95-0980-C02-02.
DS TECNALIA Publications
RD 30 jul 2024