Journal
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Volume 167, Issue 1, Pages 132-137Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jmatprotec.2004.10.010
Keywords
double cold rolling; annealing; rolling texture; IF steel; cold rolling reduction
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A Ti bearing interstitial free (IF) steel was finish rolled in the ferrite zone and the texture evolution during double cold rolling (DCR) and double annealing technology was investigated by orientation distribution function (ODF). The gamma-fibre texture of DCR has been compared with traditional single cold rolling (SCR) and annealing. The SCR annealing texture component {111} < 112 > remained after DCR and it improves the formation of {111} < 110 > during DCR annealing. During rolling process the gliding planes will usually rotate towards rolling plane. The rotation could not be achieved totally due to the deforming resistance from crystal defects. The result is that {111} turn to parallel the sheet plane and form. The in-grain shear bands observed after DCR play a major role on the rotation and improve the gamma-fibre texture indirectly. The mean plastic strain ratio (r-value) of DCR is much higher than that of SCR. The work hardening coefficient (n-value) less relies on the rolling and annealing technology. (c) 2004 Elsevier B.V. All rights reserved.
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