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Factors influencing planar anisotropy of batch‐annealed cold strip
Author(s) -
Zimnik Walter,
Freier Klaus,
Hussy Stefan,
Bunge HansJoachim
Publication year - 1993
Publication title -
steel research
Language(s) - English
Resource type - Journals
eISSN - 1869-344X
pISSN - 0177-4832
DOI - 10.1002/srin.199301047
Subject(s) - recrystallization (geology) , titanium , chemistry , metallurgy , crystallography , materials science , geology , paleontology
Based on small titanium contents, cold‐rolled and batch‐annealed sheet can be produced with a quasi‐isotropic forming behaviour. Using the chemical composition of deep‐drawing steel, the influence of low titanium contents on the deformation and recrystallization textures has been investigated. Whereas the deformation texture was not affected by the addition of titanium, the recrystallization textures showed clear differences. For example, the volume fractions of orientations corresponding to the deformation texture were increased by the addition of titanium. The reczystallization kinetics is slowed down by the addition of titanium. To achieve a low planar anisotropy, the delay of recrystallization due to Ti‐alloying has to match the driving force for recrystallization, i. e. the degree of deformation. Furthermore, a low coiling temperature after hot‐rolling and a Ti/N‐ratio of > 4.0 are required to produce deep‐drawing steel with a low planar anisotropy.