ADDITIONAL OBSERVATIONS ON THE FLOW STRESS RECOVERY OF ZIRCALOY-2
Technical Report
·
OSTI ID:4317511
The flow stress recovery behavior of 5, 15 and 25% coldworked Zircaloy-2 was studied over the temperature range of 275 deg C to 500 deg C. Activation energies were calculated for 50% recovery of 15% cold-worked material. A significant and useful portion of the strain induced strength increase is retained in 15% cold worked Zircaloy-2 after long times at temperatures up to 350 deg C. No significant difference was observed between the yield strengths of 15 and 25% coldworked Zircaloy-2 after the recovery treatments. Cold working the alloy 25% did not accelerate the yield strength recovery as compared with lower per cents of cold work. Based on the data collected in this study the activation energy for 50% yield strength recovery of 15% cold worked Zircaloy-2 decreases with increasing temperature. (auth)
- Research Organization:
- General Electric Co. Hanford Atomic Products Operation, Richland, Wash.
- DOE Contract Number:
- W-31-109-ENG-52
- NSA Number:
- NSA-12-002925
- OSTI ID:
- 4317511
- Report Number(s):
- HW-50340
- Country of Publication:
- United States
- Language:
- English
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