Using a periodic microfield approach a micromechanical study is presented, which is capable to describe the ductility losses due to a film like ferrite precipitation in the high temperature region of iron based alloys by considering the two phase microstructure close to phase transformation temperatures and explicitly accounting for the elasto-plastic materiai properties of each present phase.For the temperature range close to the A*3 temperature it will be demonstrated that the hot ductility behavior is directly corre]ated to the volume fraction of ferrite which develops a:ong the austenitic grain boundary and the global strain rate of the specimen.

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