Determination of recrystallization kinetics from plane strain compression tests

Although a lot of data are available in the literature on the recrystallization behavior of plain carbon and microalloyed steels, comparisons are often difficult to make due to the effect of different experimental techniques and the type of tests used to obtain these data. Few systematic comparisons can be found in the literature to correlate the different techniques and methods. A previous paper by the present authors concentrates on the analysis of torsion methods. The present study focuses on the recrystallization kinetics determined by using double hit and stress relaxation tests in plane strain compression mode. The specificity of the test and the strain distribution across the section has been incorporated into the analysis, by means of finite element methods. A good correlation has been obtained between the kinetics for stress relaxation and double hit tests. However, some rules should be respected in order to determine the true recrystallization/softening kinetics comparable with those obtained for other deformation modes like torsion.