Modeling the corrosion of high-level waste containers CAM-CRM interface

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A key component of the Engineered Barrier System (EBS) being designed for containment of spent-fuel and high-level waste at the proposed geological repository at Yucca Mountain, Nevada is a two-layer canister. In this particular design,the inner barrier is made of a corrosion resistant material (CRM) such as Alloy 625 and C-22, while the outer barrier is made of a corrosion allowance material (CAM) such as carbon steel or Monel 400. Initially, the containers will be hot and dry due to the heat generated by radioactive decay. However, the temperature will eventually drop to levels where both humid air and aqueous ... continued below

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9 p.

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Farmer, J.C. & McCright, M. December 9, 1997.

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Description

A key component of the Engineered Barrier System (EBS) being designed for containment of spent-fuel and high-level waste at the proposed geological repository at Yucca Mountain, Nevada is a two-layer canister. In this particular design,the inner barrier is made of a corrosion resistant material (CRM) such as Alloy 625 and C-22, while the outer barrier is made of a corrosion allowance material (CAM) such as carbon steel or Monel 400. Initially, the containers will be hot and dry due to the heat generated by radioactive decay. However, the temperature will eventually drop to levels where both humid air and aqueous phase corrosion will be possible. As the outer barrier is penetrated, uniform corrosion of the CRM will be possible of exfoliated areas. The possibility of crevice formation between the CAM and CRM will also exist. In the case of either Alloy 625 or C-22, a crevice will have to form before significant penetration of the CRM can occur. Crevice corrosion of the CRMs has been well documented.

Physical Description

9 p.

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OSTI as DE98054670

Other: FDE: PDF; PL:

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  • SPECTRUM `98: nuclear and hazardous waste management international topical meeting, Denver, CO (United States), 13-18 Sep 1998

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  • Other: DE98054670
  • Report No.: UCRL-JC--129120
  • Report No.: CONF-980905--
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 652982
  • Archival Resource Key: ark:/67531/metadc710738

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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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  • December 9, 1997

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  • Sept. 12, 2015, 6:31 a.m.

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  • April 6, 2017, 6:20 p.m.

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Farmer, J.C. & McCright, M. Modeling the corrosion of high-level waste containers CAM-CRM interface, article, December 9, 1997; California. (digital.library.unt.edu/ark:/67531/metadc710738/: accessed October 21, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.