Influence of temperature on threshold stress for reorientation of hydrides and residual stress variation across thickness of Zr-2.5Nb alloy pressure tube
Author
Summary, in English
Threshold stress, σth, for reorientation of hydrides in cold worked and stress-relieved (CWSR) Zr–2.5Nb pressure tube material was determined in the temperature range of 523–673 K. Using tapered gage tensile specimen, mean value of σth was experimentally determined by two methods, half thickness method and area compensation method. The difference between local values of σth measured across the thickness of the tube and the mean σth values yielded the residual stress variation across the tube thickness. It was observed that both the mean threshold stress and residual stress decrease with increase in reorientation temperature. Also, the maximum value of residual stresses was observed near the midsection of the tube.
Department/s
Publishing year
2006
Language
English
Pages
208-249
Publication/Series
Journal of Nuclear Materials
Volume
359
Issue
3
Document type
Journal article
Publisher
Elsevier
Topic
- Mechanical Engineering
Status
Published
ISBN/ISSN/Other
- ISSN: 0022-3115