Long term laboratory corrosion monitoring of calcine bin set materials exposed to zirconia calcine
Corrosion testing of Type 1025 carbon steel, 405, 304, 304L, 316L, and 347 stainless steels, and 6061-T6 aluminum were conducted in synthetic zirconia calcine to model long term corrosion performance of bin set material. Testing was conducted over a period of 17 years. The existing calcine bin set {number_sign}1 is constructed of Type 405 stainless steel, 2 through 4 are constructed of Type 304 stainless steel and 5 through 7 are constructed of Type 304L stainless steel. The highest rate observed for Type 304L stainless steel was 8.1 {times} 10{sup {minus}7} inches per month. This would equal a wall thickness loss of about 5 mils after 500 years of storage. Currently, the established schedule for removal of corrosion test coupons from the calcine storage bins is at the end of the 10th, 100th, 250th, and 450th year of solid storage service. Very low corrosion rates and metal oxide data determined from the long term laboratory test, in conjunction with corrosion rates from the coupon assessment of the second bin set, indicate this schedule should be revised from 10 years to 50 years for the first assessment.
- Research Organization:
- Westinghouse Idaho Nuclear Co., Inc., Idaho Falls, ID (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC07-84ID12435
- OSTI ID:
- 10169858
- Report Number(s):
- WINCO--1219; ON: DE94015783
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
11 NUCLEAR FUEL CYCLE AND FUEL MATERIALS
36 MATERIALS SCIENCE
360105
ALUMINIUM
CALCINATION
CARBON STEELS
CORROSION
CORROSION AND EROSION
RADIOACTIVE WASTE STORAGE
STAINLESS STEEL-304L
STAINLESS STEEL-316L
STAINLESS STEEL-347
STAINLESS STEEL-405
TRANSPORT, HANDLING, AND STORAGE
ZIRCONIUM OXIDES