Effect of Warm Rolling on the Rolling and Recrystallization Textures of Non-oriented 3% Si Steel

Abstract

The effect of warm rolling in the 50°C–300°C temperature range on the microstructure, stored energy and crystallographic texture of a 3 mass-% Si steel was analyzed. Both rolling and annealing texture were significantly affected by warm rolling. Dynamic strain aging (DSA) was observed in the temperature range 150°C–300°C. The stored energy, E^S_<hkl>, of <hkl> || ND oriented grains in the steel warm rolled at 200°C was found to decrease in the following order: E^S_<111> > E^S_<110> >> E^S_<100> ≥ E^S_<112>. A pronounced {110}<001> recrystallization annealing texture was observed in specimens warm rolled in the DSA temperature range. The effect is due to the formation of {110}<001> oriented nuclei in deformation bands occurring in <110> || ND oriented grains after warm rolling. The deformation bands are believed to be caused by the strain localization associated with dynamic strain ageing.