Progress in evaluating the corrosion of candidate HLW container metals in irradiated air-steam mixtures

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The Yucca Mountain Site Characterization Project is evaluating Yucca Mountain in Nye County, Nevada, as a site for a potential high-level nuclear waste repository. Lawrence Livermore National Laboratory is concerned with the development and performance modeling of waste packages for the potential repository. Argonne National Laboratory has performed experimental studies in support of the waste package effort. This effort is currently guided by the Waste Package Plan, which calls for a systems engineering approach to waste package development. Part of this approach involves formulating an approved set of selection criteria to choose the materials to be used in fabricating the ... continued below

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13 p.

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Reed, D.T. & Van Konynenburg, R.A. October 1, 1991.

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The Yucca Mountain Site Characterization Project is evaluating Yucca Mountain in Nye County, Nevada, as a site for a potential high-level nuclear waste repository. Lawrence Livermore National Laboratory is concerned with the development and performance modeling of waste packages for the potential repository. Argonne National Laboratory has performed experimental studies in support of the waste package effort. This effort is currently guided by the Waste Package Plan, which calls for a systems engineering approach to waste package development. Part of this approach involves formulating an approved set of selection criteria to choose the materials to be used in fabricating the waste packages. Technical issues related to the performance of metals in the air/water vapor environment expected in the potential Yucca Mountain repository are discussed. Preliminary experiments, focused on the atmospheric corrosion of copper-based materials, are summarized. These experiments were performed over a broad range of conditions: temperatures between 90 and 150{degrees}C; relative humidities of 0, 15, 40, and 100%; and gamma dose rates between 0.01 and 0.3 Mrad/hr. In irradiated moist air, copper-based materials form cooper oxides and nitrate phases depending on the dose rate, humidity and temperature. The rates of general corrosion increase with temperature, humidity, and dose rate. Chemical intermediates formed by radiolysis of moist air have been clearly associated with observed corrosion. No significant corrosion was observed for Alloy 825. 13 refs., 3 tabs.

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13 p.

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INIS; OSTI as DE92000298

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  • Focus `91: nuclear waste packaging, Las Vegas, NV (United States), 29 Sep - 4 Oct 1991

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  • Other: DE92000298
  • Report No.: ANL/CP--72982
  • Report No.: CONF-910945--1;UCRL-JC--108307
  • Grant Number: W-31109-ENG-38;W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 138221
  • Archival Resource Key: ark:/67531/metadc620417

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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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  • October 1, 1991

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  • June 16, 2015, 7:43 a.m.

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  • Dec. 15, 2015, 6:03 p.m.

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Reed, D.T. & Van Konynenburg, R.A. Progress in evaluating the corrosion of candidate HLW container metals in irradiated air-steam mixtures, article, October 1, 1991; Illinois. (digital.library.unt.edu/ark:/67531/metadc620417/: accessed October 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.