Strong {1 0 0}＜0 1 2＞-{4 1 1}＜148＞ recrystallization textures in heavily hot-rolled non-oriented electrical steels

摘要

Strong {1 0 0}< 0 1 2 >-{4 1 1}< 1 4 8 > recrystallization textures were obtained in heavily hot-rolled non-oriented electrical steels by increasing the normalization temperature and holding time. After cold-rolling at medium reduction and annealing, a strong {1 0 0} texture and a weak gamma-fiber texture were finally acquired. The magnetic properties of final sheets were obviously improved compared with com- mercial ones. In the early stages of recrystallization, the {4 1 1}< 1 4 8 > recrystallization nuclei formed by subgrain coalescence, which mainly nucleated in the vicinity of the grain boundaries of alpha-fiber deformed grains and the nucleation sites evenly distributed. The {4 1 1}< 1 4 8 > grains selectively grew due to the higher mobility and the advantages of size and quantity. (C) 2019 Elsevier B.V. All rights reserved.