Carbon Concentration of Retained Austenite in Isothermally Transformed 300M Steel

L. C. Chang and H. K. D. H. Bhadeshia

Abstract

Published data on the carbon concentration of retained austenite in 300M steel which has been isothermally transformed to bainite have been analysed using phase transformation theory. It is demonstrated that the chemical composition of the austenite can be predicted by assuming that the growth of bainite occurs without any diffusion, but that the excess carbon is partitioned shortly afterwards into the residual austenite.

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1994, Vol.184, No.1, pp.L17-L19

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