Texture evolution during cold rolling and annealing in dual phase steels
17 Dec 2011
Carla Barbatti, Jaap Moerman; Tata Steel RD&T, IJmuiden, The NetherlandsJ. Gautam, Materials Innovation Institute, M2i, Delft, The Netherlands
L.A.I. Kestens, A.G. Miroux; Delft University of Technology, The Netherlands
This paper investigates the bulk texture evolution during cold rolling and annealing of Dual Phase steels for different processing conditions, i.e. cold reduction within the reduction range of 45 to 73% and annealing at temperatures between 650 and 850°C, which includes the recovery, recrystallisation and partial phase transformation domains. Textures have been measured by X-ray diffraction. The results reveal that the rolling texture is strengthened during the recovery process or initial stage of recrystallisation while during recrystallisation a weak RD-ND type of texture appears. During subsequent phase transformation the RD-ND type of texture further weakens and later randomises as the second phase fraction increases beyond 75%.
Paper presented at ICOTOM 16, Mumbai, India, December 12-17, 2011
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