Underground Corrosion of Activated Metals in an Arid Vadose Zone Environment
The subsurface radioactive disposal site located at the Idaho National Engineering and Environmental Laboratory contains neutron-activated metals from nonfuel nuclear-reactor- core components. A long-term corrosion test is being conducted to obtain site-specific corrosion rates to support efforts to more accurately estimate the transfer of activated elements in an arid vadose zone environment. The tests use nonradioactive metal coupons representing the prominent neutron-activated material buried at the disposal location, namely, Type 304L stainless steel, Type 315L stainless steel, nickel-chromium alloy (UNS NO7718), beryllium, aluminum 6061-T6, and a zirconium alloy, (UNS R60804). In addition, carbon steel (the material presently used in the cask disposal liners and other disposal containers) and a duplex stainless steel (UNS S32550) (the proposed material for the high- integrity disposal containers) are also included in the test program. This paper briefly describes the test program and presents the early corrosion rate results after 1 year and 3 years of underground exposure.
- Research Organization:
- Idaho National Lab. (INL), Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- DE-AC07-99ID-13727
- OSTI ID:
- 911338
- Report Number(s):
- INEEL/CON-01-01450; TRN: US0704525
- Resource Relation:
- Conference: NACE 2002,Denver, CO,04/07/2002,04/12/2002
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
ALLOYS
ALUMINIUM
BERYLLIUM
CARBON STEELS
CASKS
CONTAINERS
CORROSION
INEEL
LINERS
STAINLESS STEELS
ZIRCONIUM ALLOYS
aluminum
beryllium
microbiologically induced corrosion
neutorn-activated metals
nuclear reactor components
soil analysis
underground corrosion
soil gas
stainless steel
vadose zone
zirconium alloys