Density and Tensile Properties Changed by Aging Plutonium
Conference
·
OSTI ID:15015881
We present volume, density, and tensile property change observed from both naturally and accelerated aged plutonium alloys. Accelerated alloys are plutonium alloys with a fraction of Pu-238 to accelerate the aging process by approximately 18 times the rate of unaged weapons-grade plutonium. After thirty-five equivalent years of aging on accelerated alloys, the dilatometry shows the samples at 35 C have swelled in volume by 0.12 to 0.14% and now exhibit a near linear volume increase due to helium in-growth while showing possible surface effects on samples at 50 C and 65 C. The engineering stress of the accelerated alloy at 18 equivalent years increased significantly compared to at 4.5 equivalent years.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- US Department of Energy (US)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 15015881
- Report Number(s):
- UCRL-PROC-210585; TRN: US200509%%534
- Resource Relation:
- Conference: Presented at: 26th Compatibility, Aging, and Stockpile Stewardship Conference, Aiken, SC (US), 04/26/2005--04/28/2005; Other Information: PBD: 14 Mar 2005
- Country of Publication:
- United States
- Language:
- English
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