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Laser Surface Treatment of Aerospace Steels

Published online by Cambridge University Press:  15 February 2011

G. Christodoulou ,
P. Henry ,
W.M. Steen  and
D.R.F. West
G. Christodoulou
Affiliation:
Department of Metallurgy & Materials Science, Imperial College, London, England
P. Henry
Affiliation:
Department of Metallurgy & Materials Science, Imperial College, London, England
W.M. Steen
Affiliation:
Department of Metallurgy & Materials Science, Imperial College, London, England
D.R.F. West
Affiliation:
Department of Metallurgy & Materials Science, Imperial College, London, England
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Abstract

An investigation is reported of the laser surface melting of four alloy steels with carbon contents ranging up to 1 wt%. Studies were made of the profiles, microstructures and hardnesses of zones produced using a laser power of 1.7 kW and a range of traverse speeds and beam diameters. The observed zone profiles were correlated with calculations from a three-dimensional, moving source, heat transfer model. In the high carbon steels, the shallow laser melted zones contained substantial amounts of retained austenite.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 8 , 1981 , 505
Copyright
Copyright © Materials Research Society 1982

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References

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