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,Es, of || ND oriented grains in the steel warm rolled at 200°C was found to decrease in the following order: E s111 > Es110 Es100>> Es112 . 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. © 2011 ISIJ.