Abstract
The effect of the annealing atmosphere on the recrystallization of Ni–5%W alloy used as substrate sheet for superconductor wire was investigated. The annealing was made in two different annealing atmospheres: hydrogen and argon. After analyzing the recrystallized texture and microstructure by EBSD, the main texture component formed in both annealing atmospheres is the {100}<001> cube orientation. Furthermore, it is shown that hydrogen promotes the cube texture development, while argon slows down its development. Besides, it is shown that hydrogen favors the triggering of the abnormal grain growth at a temperature higher than 1 120 °C, while under argon, the abnormal grain growth is not observed before 1 200 °C. Then, an optimized annealing process has been put forward combining both the atmospheres. Note that the origin of hydrogen and argon effects on boundary mobility is also discussed.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.