Sandia HLW canister/overpack studies applicable for a salt repository

Technical Report · Thu Oct 01 00:00:00 EDT 1981

OSTI ID:5604559

Molecke, M A; Schaefer, D W; Glass, R S; Ruppen, J A

An experimental program to develop candidate materials for use as high-level waste (HLW) overpacks or canisters in a salt repository has been in progress at Sandia National Laboratories since 1976. The main objective of this program has been to provide a waste package barrier having a long lifetime in the chemical and physical environment of a repository. This paper summarizes the recent corrosion and metallurgical results for the prime overpack material TiCode-12 in the areas of uniform corrosion (extremely low rate and extent), local attack, e.g., pits and crevices (none found), stress corrosion cracking susceptibility (no significant changes in macroscopic tensile properties detected) and hydrogen sorption/embrittlement effects (testing still in process), effects of gamma irradiation in solution (still in process), and sensitization effects (still in process). Previous candidate screening analyses on other alloys and recent work on alternate overpack alloys are reviewed. All phases of these interrelated laboratory, hot-cell, and field experimental studies are described.

• Research Organization: Sandia National Labs., Albuquerque, NM (USA)
• DOE Contract Number: AC04-76DP00789
• OSTI ID: 5604559
• Report Number(s): SAND-81-1585; ON: DE82006830; TRN: 82-004794
• Country of Publication: United States
• Language: English

Related Subjects

12 MANAGEMENT OF RADIOACTIVE AND NON-RADIOACTIVE WASTES FROM NUCLEAR FACILITIES
36 MATERIALS SCIENCE
ALLOYS
CORROSION RESISTANCE
HIGH-LEVEL RADIOACTIVE WASTES
PACKAGING
NICKEL ALLOYS
RADIOACTIVE WASTE STORAGE
STAINLESS STEELS
STEELS
TITANIUM ALLOYS
BRINES
EMBRITTLEMENT
GAMMA RADIATION
MATERIALS TESTING
RADIATION EFFECTS
SALT DEPOSITS
SCREENING
SEAWATER
UNDERGROUND STORAGE
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
ELECTROMAGNETIC RADIATION
GEOLOGIC DEPOSITS
HYDROGEN COMPOUNDS
IONIZING RADIATIONS
IRON ALLOYS
IRON BASE ALLOYS
MANAGEMENT
MATERIALS
OXYGEN COMPOUNDS
RADIATIONS
RADIOACTIVE MATERIALS
RADIOACTIVE WASTES
STORAGE
TESTING
WASTE MANAGEMENT
WASTE STORAGE
WASTES
WATER
052002* - Nuclear Fuels- Waste Disposal & Storage
360105 - Metals & Alloys- Corrosion & Erosion