Modelling recovery kinetics in high-strength martensitic steels
B.N. Kim (TU Delft - (OLD) MSE-3)
D. San Martin (Centro Nacional de Investigaciones Metalúrgicas (CENIM-CSIC))
P. E.J. Rivera Diaz del Castillo (University of Cambridge)
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Abstract
The decrease in dislocation density and hence the high strength loss can be modelled during martensite tempering as a recovery process. In this work, an innovative approach is presented to understand the role of silicon associated with the inhibition of the recovery rate. A phenomenological model is presented, where a combination of cross-slip and solute drag is identified as the main governing mechanism for recovery up to 450 (Formula presented.) C, from where it is postulated that recrystallisation occurs.
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