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Enhancement of Ferrous Alloy Surface Mechanical Properties by Nitrogen Implantation

Published online by Cambridge University Press:  25 February 2011

John T.A. Pollock ,
Michael J. Kenny  and
Peter J.K. Paterson
John T.A. Pollock
Affiliation:
CSIRO Division of Chemical Physics, Lucas Heights Research Laboratories, NSW, 2232, Australia.
Michael J. Kenny
Affiliation:
CSIRO Division of Chemical Physics, Lucas Heights Research Laboratories, NSW, 2232, Australia.
Peter J.K. Paterson
Affiliation:
Applied Physics, R.M.I.T., Melbourne, VIC, 3000, Australia.
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Abstract

Clarification of the relationship between nitrogen profiles and wear behaviour has been sought by studying nitrogen implanted mild steel. Implant energy and dose were in the ranges 25 – 65 keV and 0.9 − 3 × 1017 1ions cm−2, respectively. Wear characteristics were measured with a ball-on-disc system followed by interferometric analysis. Nitrogen distributions before and after wear were determined by Auger electron spectroscopy and Rutherford backscattering methods, and compared with wear track profiles. On balance, the data offers qualified support for nitrogen migration at low loads, although nitrogen was not detected for wear depths >2 times the implant depth. Observations of wear on the abrader ball-bearing surface and the role of oxygen in the wear process are reported.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 27: Symposium E – Ion Implantation and Ion Beam Processing of Materials , 1983 , 691
Copyright
Copyright © Materials Research Society 1984

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References

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