The dissolution kinetics of Fe3C in ferrite — A theory of interface migration
作者： Frank V. Nolfi , Paul G. Shewmon , James S. Foster
DOI: 10.1007/BF02643447
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摘要: The dissolution of Fe3C in ferrite has been shown to be controlled by a slow first order interfacial reaction. rate constant,K, is Arrhenius behavior and involves two activation enthalpies; one applies jump process with short relaxation time, another long time which tentatively identified as change kink density on ledges the interface. heat solution also appears exponential. A single process, activated theory not adequate explain ofK temperature; model based ledge-double mechanism agreement experiment. These features point significant differences between interphase boundary migration grain migration. In addition, Fe3C-ferrite interface felt at equilibrium respect carbon but iron, leading small departures from stoichiometry
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