Abstract
The formation of deformation and recrystallization textures has been investigated in a Ni7W alloy after heavy cold rolling and subsequent annealing at different temperatures. Cold rolling to a von Mises strain of 4.17 produced a mix of rolling texture that lies between classical brass- and copper-type rolling textures, with the fraction of S({123}<634>), brass({110}<112>), and copper({112}<111>) orientations being 33, 28, and 13%, respectively. The fraction of rolling texture for the deformed Ni7W alloy samples increased slightly during recovery, was then consumed significantly during recrystallization, and dropped to 22% after being annealed at 800 °C for 1 h. The fraction of cube({001}<100>) orientation increased to 26% after primary recrystallization, whereas other random orientations of 43% formed in the Ni7W alloy samples. Further annealing promoted cube grain growth, which lead to a significant strengthening of the cube texture and to a significant loss in high angle boundary (HAB). The fractions of cube texture and HAB of the Ni7W alloy substrate were 92.1 and 27.8%, respectively, after annealing at 1200 °C for 1 h.
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ACKNOWLEDGMENTS
The authors gratefully acknowledge the support from the National Science Foundation of China (51171002), Beijing Municipal Natural Science Foundations (2132011 and KZ201310005003), the Doctoral Program of Higher Education of Special Research Fund (20121103110012), the Project of Construction of Innovative Teams and Teacher Career Development for Universities and Colleges Under Beijing Municipality (IDHT20130510), as well as the Project supported by the Beijing Postdoctoral Research Foundation (Q6009001201402).
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Liang, Y., Tian, H., Suo, H. et al. Recrystallization and cube texture formation in heavily cold-rolled Ni7W alloy substrates for coated conductors. Journal of Materials Research 30, 1686–1692 (2015). https://doi.org/10.1557/jmr.2015.92
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DOI: https://doi.org/10.1557/jmr.2015.92