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Processing Steels for Tribological Applications by Titanium Implantation

Published online by Cambridge University Press:  25 February 2011

I.L. Singer  and
R.A. Jeffries
I.L. Singer
Affiliation:
Naval Research Laboratory, Code 6170, Chemistry Division Washington, DC 20375;
R.A. Jeffries
Affiliation:
Geo-Centers, Inc., 4710 Auth Place Suitland, MD 20746
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Abstract

Titanium implantation into steels has been shown to produce superior tribological surfaces. The fluence required to produce a wear resistant surface increases from 2 to 5×1017 Ti/cm2 as the energy increases from 50 to 200 keV/ion. On curved surfaces (e.g., bearings, cutting tools, etc.) higher fluences are necessary due to effects of implantation at angles off normal incidence (i.e. the combined effects of higher sputtering rates, decreased range, and changes in the carburization process associated with duty cycles). Significant improvements in friction and wear have also been observed for surfaces which have been abraded by 600 and 120 grit SiC prior to implantation. Optimal benefits of Ti-implantation are associated with the formation of a modestly thick (>20nm) fully carburized layer.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 27: Symposium E – Ion Implantation and Ion Beam Processing of Materials , 1983 , 673
Copyright
Copyright © Materials Research Society 1984

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References

REFERENCES

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