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Surface Melting of Cast Iron With a High Power Laser Beam

Published online by Cambridge University Press:  15 February 2011

Ylva Nilsson
Ylva Nilsson*
Affiliation:
Dep of Casting Metals, Royal Inst. of Technology, S – 100 44, Stockholm, Sweden
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Abstract

An investigation is done on partial surface hardening and alloying on cast iron by means of a high power laser beam. Samples of cast iron have been covered with alloying material i.e. Ti, Cr, Si, V and Nb respectively. The samples were irradiated with a 2.5 kW laser beam. A partial melting of the surface occured and the alloys were dissolved. The carbide structure in the resolidified part was governed by the alloy addition. The carbide structure was metallographicly analysed. The effect of different parameters as beam diameter, scanning rate, power and alloy content have been investigated and the crack frequency has been evaluated.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 8 , 1981 , 517
Copyright
Copyright © Materials Research Society 1982

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References

REFERENCES

1. Prof. Hasse Fredriksson, Royal Institute of Technology, Stockholm, Sweden.Google Scholar
2. The Structures of alloys of iron. W. Hume-Rothery O.B.E.,F.R.S.Google Scholar