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Continuous Cooling Transformation (CCT) Diagrams

Continuous Cooling Transformation (CCT) DiagramsR. MannaAssistant ProfessorCentre of Advanced StudyDepartment of Metallurgical EngineeringInstitute of Technology, Banaras Hindu UniversityVaranasi-221 005, Steel-TRAERF Faculty Fellowship Visiting ScholarDepartment of Materials Science and MetallurgyUniversity of Cambridge, Pembroke Street, Cambridge, CB2 Cooling Transformation (CCT) diagramThere are two types of CCT diagramsI) Plot of (for each type of Transformation ) Transformation start, specific fraction of Transformation and Transformation finish temperature against Transformation time on each Cooling curveII) Plot of (for each type of Transformation ) Transformation start, specific fraction of Transformation and Transformation finish t

The nucleation condition under continuous cooling can be explained by the concept of progressive nucleation theory of Scheil. 17. Scheil’s concept of fractional nucleation/progressive nucleation Scheil presented a method for calculating the transformation

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