Abstract
In the present work, a β-Ti alloy (Ti–15V–3Sn–3Cr–3Al) was unidirectionally cold rolled to 80% thickness reduction, followed by recrystallization at two temperatures: (i) 1013 K and (ii) 1053 K. The microstructural developments were studied using light optical microscopy, scanning electron microscopy X-ray peak profile analysis, and electron backscattered diffraction. The bulk texture of deformed and fully recrystallized samples was studied using X-ray diffraction. The deformed microstructures showed the presence of high fraction of shear bands, and these bands were preferentially formed in γ-fiber grains than in the grains with other orientations. Cold rolled β-Ti alloy samples were fully recrystallized in 10 min at 1053 K and in 90 min at 1013 K. Strong α- and γ-fibers were formed after 80% cold rolling, while strong discontinuous γ-fiber (with very strong {111}〈112〉 component) was formed after complete recrystallization. Oriented nucleation was found to be the dominant mechanism for the development of recrystallization texture.
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The authors would like to thank the Director of VNIT Nagpur for providing the necessary facilities and constant encouragement to publish this paper. One of the authors, RKK, wishes to acknowledge the Science and Engineering Research Board (SERB) for financial assistance to carry out this work (Grant No. EEQ/2016/000408).
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Gupta, A., Khatirkar, R.K., Dandekar, T. et al. Recrystallization behavior of a cold rolled Ti–15V–3Sn–3Cr–3Al alloy. Journal of Materials Research 34, 3082–3092 (2019). https://doi.org/10.1557/jmr.2019.225
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DOI: https://doi.org/10.1557/jmr.2019.225