Abstracts Book - IMRC 2018

• SD3-P002
EFFECT OF INITIAL TEXTURES ON THE ANNEALING TEXTURES OF
A BCC METAL
Jun-Yun Kang 1 , Seong-Jun Park 1 , Jun Young Park 1 , Seongwon Park 1 , Yi-Hwa Song 2 , Sung-Taek
Park 2 , Gwang-Lyeon Kim 2
1 Korea Institute of Materials Science, Steel Department, Korea. 2 Poongsan, R&D Institute, South
Korea.
Cold rolling and annealing is the conventional process to fabricate most of
commercial metallic sheets, while it additionally gives crystallographic textures
and consequent anisotropy to the product. Many processing parameters such
as rolling reduction, annealing temperature and heating rate upon annealing
affect the final annealing texture by selective nucleation or growth during
recrystallization. Material parameters such as composition and grain size also
has considerable influence. In this study, the effect of initial textures on the final
textures of a cold rolled and annealed BCC metal sheet was studied.
Three types of initial textures were obtained by controlled sectioning of an
initially textured billet. One had strong rotated cube, i.e. {100} components,
while the others had strong Goss, i.e. {110} and γ-fiber, i.e. //(normal direction)
components, respectively. The specimens of the different textures were cold
rolled with various strain and annealed. Micro-texture measurements using
EBSD were performed to analyze the evolution of microstructures and textures
according to the initial textures. More specifically, the high stability of rotated
cube components which leads to a degraded formability is discussed.
Keywords: texture, annealing, recrystallization
Presenting authors email: firice@kims.re.kr