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A Study of the Tribological Characteristics of Titanium Nitride Film Prepared by the Dynamic Ion Beam Mixing Method for Application on Sliding Bearings

Published online by Cambridge University Press:  03 September 2012

H. Nagasaka  and
T. Koizumi
H. Nagasaka
Affiliation:
Ebara Research Co., Ltd., 2-1, Honfujisawa 4-chome, Fujisawa-shi 251, Japan
T. Koizumi
Affiliation:
Ebara Research Co., Ltd., 2-1, Honfujisawa 4-chome, Fujisawa-shi 251, Japan
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Abstract

Titanium nitride (TiN) film for the bearings and seals used in rotating machinery has been developed by the dynamic-ion-beam-mixing (DM) process, which combines Ti vapor deposition with simultaneous nitrogen ion beam irradiation. In this study, the tribological properties of the DM-TiN film on martensitic stainless steel (SS) were investigated for application on the bearings of submerged pumps. The critical contact pressure for seizure, wear resistance and friction coefficient properties of DM-TiN film paired with cast iron were investigated under practical sliding conditions, and compared with the hard surface materials of nitriding AISI 420 SS and nitriding 41CrAlMo74 (CrAlMo) steel. The results show that DM-TiN film is superior to these nitriding steels in surface contact pressure for seizure and wear resistance.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 438: Symposium A – Materials Modificaton and Synthesis by Ion Beam… , 1996 , 651
Copyright
Copyright © Materials Research Society 1997

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