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Cavitation by Cold Deformation of High Temperature Alloys

Published online by Cambridge University Press:  26 February 2011

A. Plath ,
T. Baumgärtner ,
K. Bothe ,
B. Kempf  and
V. Gerold
A. Plath
Affiliation:
Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Seestr. 92, D-7000 Stuttgart 1, F.R., Germany
T. Baumgärtner
Affiliation:
Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Seestr. 92, D-7000 Stuttgart 1, F.R., Germany
K. Bothe
Affiliation:
Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Seestr. 92, D-7000 Stuttgart 1, F.R., Germany
B. Kempf
Affiliation:
Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Seestr. 92, D-7000 Stuttgart 1, F.R., Germany
V. Gerold
Affiliation:
Max-Planck-Institut für Metallforschung, Institut für Werkstoffwissenschaften, Seestr. 92, D-7000 Stuttgart 1, F.R., Germany
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Abstract

Nimonic 80A and Alloy 800H have been deformed at room temperature in tension and in compression and subsequently heat treated stress-free and under stress. The cavity densities which were investigated by scanning electron microscopy exhibit a different dependence on the plastic strain. If the heat treatment was performed under stress new and bigger cavities developed on unexpected grain boundaries in Nimonic 80A. The mechanisms are discussed in terms of the model of Kikuchi, Shiozawa and Weertman.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 122: Symposium I – Interfacial Structure, Properties, and Design , 1988 , 331
Copyright
Copyright © Materials Research Society 1988

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References

REFERENCES

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