A rationalization of sympathetic nucleation-ledgewise growth theory of bainite transformation in Fe-C alloys

Abstract

Abstract: Based on the classic diffusion controlled nucleation and growth theory, the sympathetic nucleation-ledgewise growth mechanism of bainite was studied theoretically for low carbon F-e-C alloys. The rationality of the occurrence of sympathetic nucleation on the terraces of ledges competing with lateral ledge growth and other sites nucleation was demonstrated by the present work quantitatively. The calculations indicated that low reaction temperatures and high carbon concentrations may favor the sympathetic nucleation, thus accounting for the formation of multilayer structures of bainite.

Key words:

Zhigang YANG, Chi ZHANG, Hongsheng FANG, Jinbo YANG, Bingzhe BAI, Jiajun WANG. A rationalization of sympathetic nucleation-ledgewise growth theory of bainite transformation in Fe-C alloys[J]. J Mater Sci Technol, 2001, 17(04): 433-438.

References

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