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The Effect of the Structure and the Heating and Cooling Rate on the Thermal Expansion of Grey Cast Iron

Published online by Cambridge University Press:  21 February 2011

P. A. Sunnerkrantz  and
H. Fredriksson
P. A. Sunnerkrantz
Affiliation:
Department of Casting of Metals Royal Institute of Technology S-100 44 Stockholm
H. Fredriksson
Affiliation:
Department of Casting of Metals Royal Institute of Technology S-100 44 Stockholm
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Abstract

The thermal expansion of grey cast iron was studied in six different alloys. The expansion was determined at two different heating and cooling rates. It was found that the expansion was influenced by the heating and cooling rates. The thermal expansion was larger than the thermal expansion in steel and the thermal expansion also increased with increasing temperature. The thermal expansion was theoretically analysed. The temperature dependence was accounted for, by considering the fact that the carbon content in austenite and ferrite increases with increasing temperature.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 34: Symposium – Physical Metallurgy of Cast Iron , 1984 , 365
Copyright
Copyright © Materials Research Society 1985

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References

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