Abstract
The dislocation–point defect interactions in press hardened 22MnB5 steel were characterized by the impulse internal friction technique. The analysis focused on the interaction between the interstitial carbon and the dislocation in the as-die quenched lath martensite and the effect of the paint-baking process on the carbon/dislocation interaction. The results showed that whereas the paint-baking affected the dislocation-enhanced Snoek peak, the Snoek-Kê-Köster peak was unaffected by the aging processes occurring during paint baking. A deformation carried out after the paint-baking resulted in the enhancement of the dislocation-enhanced Snoek peak.
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