Tank 241-AY-102 Secondary Liner Corrosion Evaluation - 14191

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In October 2012, Washington River Protection Solutions, LLC (WRPS) determined that the primary tank of 241-AY-102 (AY-102) was leaking. A number of evaluations were performed after discovery of the leak which identified corrosion from storage of waste at the high waste temperatures as one of the major contributing factors in the failure of the tank. The propensity for corrosion of the waste on the annulus floor will be investigated to determine if it is corrosive and must be promptly removed or if it is benign and may remain in the annulus. The chemical composition of waste, the temperature and the ... continued below

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24 p.

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Boomer, Kayle D.; Washenfelder, Dennis J. & Johnson, Jeremy M. January 7, 2014.

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  • Hanford Site (Wash.)
    Publisher Info: HNF (Hanford Site (HNF), Richland, WA (United States))
    Place of Publication: Richland, Washington

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Description

In October 2012, Washington River Protection Solutions, LLC (WRPS) determined that the primary tank of 241-AY-102 (AY-102) was leaking. A number of evaluations were performed after discovery of the leak which identified corrosion from storage of waste at the high waste temperatures as one of the major contributing factors in the failure of the tank. The propensity for corrosion of the waste on the annulus floor will be investigated to determine if it is corrosive and must be promptly removed or if it is benign and may remain in the annulus. The chemical composition of waste, the temperature and the character of the steel are important factors in assessing the propensity for corrosion. Unfortunately, the temperatures of the wastes in contact with the secondary steel liner are not known; they are estimated to range from 45 deg C to 60 deg C. It is also notable that most corrosion tests have been carried out with un-welded, stress-relieved steels, but the secondary liner in tank AY-102 was not stress-relieved. In addition, the cold weather fabrication and welding led to many problems, which required repeated softening of the metal to flatten secondary bottom during its construction. This flame treatment may have altered the microstructure of the steel.

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24 p.

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  • WM-2014 Waste Management Symposia, Phoenix, AZ (United States), 2-6 Mar 2014

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  • Report No.: WRPS--56681-FP-Rev.0
  • Grant Number: DE-AC27-08RV14800
  • Office of Scientific & Technical Information Report Number: 1114825
  • Archival Resource Key: ark:/67531/metadc864518

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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Creation Date

  • January 7, 2014

Added to The UNT Digital Library

  • Sept. 16, 2016, 12:32 a.m.

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  • Oct. 31, 2016, 8:34 p.m.

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Boomer, Kayle D.; Washenfelder, Dennis J. & Johnson, Jeremy M. Tank 241-AY-102 Secondary Liner Corrosion Evaluation - 14191, article, January 7, 2014; Richland, Washington. (digital.library.unt.edu/ark:/67531/metadc864518/: accessed September 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.