On Bainite Nucleation at Carbon Depleted Zone around Edge Dislocation

Si Xin Zhao; Wei Wang; Da Li Mao

doi:10.4028/www.scientific.net/KEM.334-335.121

Paper Titles

Size Effects on Miscibility and Glass Transition Temperature of PS/TMPC Blend Films: a Simulation and Thermodynamic Approach
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The Elastic-Viscoplastic Field at the Tip of Mode II Quasi-Static Propagating Crack in Rate-Sensitive Material
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Modelling Liquid Composite Moulding Processes Employing Wood Fibre Mat Reinforcements
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Bainite Transformation in Fe-0.34%C-Nb Steels
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On Bainite Nucleation at Carbon Depleted Zone around Edge Dislocation
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Microstructural Design of Ceramic–Metal Composites for Tribological Applications
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Taiwan’s Composites and FRP Industries: Current Status and Future Developments
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Study on the Mechanical Properties of Tissue-Mimicking Phantom Composites Using Ultrasound Indentation
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Numerical and Experimental Studies on Cured Shape of Thin Unsymmetric Carbon/Epoxy Laminates
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On Bainite Nucleation at Carbon Depleted Zone around Edge Dislocation

Abstract:

The maximum number of carbon atoms adsorbed at edge dislocation was calculated using a model based on Boltzmann distribution. The number of carbon atoms adsorbed by edge dislocation increases with bulk concentration increasing and temperature decreasing. When the interfacial energy was chosen as 0.2J/mol, the maximum radius of carbon depleted zone is smaller than the critical radius required for displacive nucleation at 700K, however, larger than the critical radius at 600K. Moreover, the radius of carbon depleted zone around the dislocation at 600K is larger than that at 700K. It seems that bainite may nucleate by a displacive mechanism at lower temperature.