Hostname: page-component-7b7567c8c-tnzcf Total loading time: 0 Render date: 2026-11-13T20:37:30.620Z Has data issue: false hasContentIssue false
  • English
  • Français

Metallic Surface Modification Via Thermal Plasma Techniques

Published online by Cambridge University Press:  28 February 2011

F. W. Giacobbe
F. W. Giacobbe*
Affiliation:
Liquid Air Technology Center/Liquid Air Corporation Countryside, Illinois 60525
Get access

Abstract

A thermal plasma arc technique has been used to modify selected metallic surface and near surface properties at ambient pressures. This experimental study was implemented by treating several steel test specimens, at elevated temperatures, in a pure argon plasma and in two preblended argon/ active gas mixtures. One of the argon/active gas plasma mixtures produced significant chemical surface modifications in the steel test specimens treated in this atmosphere. Ions and free radical fragments, produced from the active gas, were responsible for the observed changes in the chemical composition of the steel surface. The other plasma treated specimens did not exhibit any changes in chemical specific details and results obtained, during this study, have been described.

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

Article purchase

Temporarily unavailable

References

1. Boyer, H. E., Practical Heat Treating, (American Society For Metals, Metals Park, OH, 1984), p. 180.Google Scholar
2. Krauss, G., Principles of Heat Treatment of Steel, (American SocietyFor Metals, Metals Park, 0H, 1980), pp.257–258.Google Scholar
3. Unterweiser, P. M., et. al. Editors, Heat Treater's Metals,(American SocietyFor Metals, Metals Park, 0H,1982), pp.216–224.Google Scholar
4. Szekely, J. and Apelian, D.- Editors, Plasma Processing and Synthesis of Materials, Materials Research Society Symposia Proceedings, Vol. 30 (Elsevier Science Publishing Co., Inc., New York, NY, 1984), pp. 19, 103.Google Scholar
5. Anon., Estimating the Average Grain Size of Metals, ASTM Designation: E 112–63, (American Society for Testing and Materials, Philadelphia, PA 1963).Google Scholar
6. Ovens, W. G. and Smith, C. O., Material Selection For Mechanicals Engineers, (American Society For Metals, Metals Park, OH, 1986), p.VIII–10 (Unpublished).Google Scholar
7. Andres, K. W., JISI, Vol.203, 721–727 (1965).Google Scholar
8. Unterweiser, P. M., op. cit., p. 218.Google Scholar
9. Boyer, H. E., op. cit., p.167.Google Scholar
10. Unterweiser, P. M., op. cit., p.223.Google Scholar