The carbon concentration trapped in films of austenite between parallel platelets of bainite is often found to be much larger than that in the larger blocks of austenite between sheaves of bainite. The effect of this non-uniform distribution of carbon on the overall transformation kinetics of bainite is examined theoretically. It is found that the trapping of carbon in the films of austenite accelerates the bainite transformation. This effect increases with increasing film thickness and with decreasing average carbon concentration.
MATERIALS SCIENCE AND TECHNOLOGY, 1992, Vol.8, No.11, pp.994-996
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