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Title:Study on size control precision of UMo/Zr dispersion fuel plate
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ClassificationCode:TG335
year,vol(issue):pagenumber:2020,45(1):131-135
Abstract:

The deformation performance of zirconium alloy and the relationship among cold rolling extension distance of UMo/Zr fuel plates and phase volume as well as rolling pressure were analyzed by the cold rolling experiments of zirconium alloy plates and UMo/Zr fuel plates. The results show that the work hardening of zircomium alloy occurs obviously in the cold rolling process, and the number of the optimum cold rolling pass is 4-5. Furthermore, the more the amount of cold rolling deformation is, the more obvious the work hardening of zirconium alloy is. In addition, the relationship among cold rolling extension distance of UMo/Zr fuel plates and phase volume as well as rolling pressure is confirmed, that is, under the same rolling pass and phase volume, the larger the rolling pressure is, the larger the cold rolling extension is, and the larger the phase volume is, the larger the rolling pressure required when the fuel plate reaches the same extension distance is. Thus, a comparison table of rolling pressure and extension distance of UMo/Zr fuel plate in a single pass was established based on their relationships, and the rolled UMo/Zr fuel plates are obtained based on this comparison table to dramatically improve the size control precision of fuel plates by about 40% and save the average rolling time by about 2.6 min.

 

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作者简介:强瑞(1987-),男,硕士,助理研究员 E-mail:qiangrui0618@163.com
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