A new micromechanical modelling is proposed to correlate some microstructural parameters
and dissipation in ferritic steels under cyclic loading. We assumed the occurrence of two
dissipative mechanisms associated with anelastic and inelastic deformations, respectively.
We showed that the modelling provides good qualitative prediction of the heating curves
when changing the volume fraction of precipitates in ferritic steels. We highlighted the
key role of the dispersion of the grain size on the local and global dissipation.