Behavior of stressed and unstressed 304L specimens in tuff repository environmental conditions

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This paper presents preliminary results of an investigation of the behavior of candidate barrier material for high-level nuclear waste storage, Type 304L stainless steel, in tuff repository environmental conditions. Tuff is a densely welded, devitrified, igneous rock common to the proposed repository site at Yucca Mountain, Nevada. The results discussed include: irradiation corrosion tests, U-bend irradiation corrosion tests, slow strain rate tests, and bent beam stress corrosion tests. Results indicate that Type 304L stainless steel shows excellent resistance to general, localized, and stress corrosion under the environmental and microstructural conditions tested so far. The environmental test conditions are 50 to ... continued below

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37 p.

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Juhas, M.C.; McCright, R.D. & Garrison, R.E. November 1, 1984.

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Description

This paper presents preliminary results of an investigation of the behavior of candidate barrier material for high-level nuclear waste storage, Type 304L stainless steel, in tuff repository environmental conditions. Tuff is a densely welded, devitrified, igneous rock common to the proposed repository site at Yucca Mountain, Nevada. The results discussed include: irradiation corrosion tests, U-bend irradiation corrosion tests, slow strain rate tests, and bent beam stress corrosion tests. Results indicate that Type 304L stainless steel shows excellent resistance to general, localized, and stress corrosion under the environmental and microstructural conditions tested so far. The environmental test conditions are 50 to 100{sup 0}C J-13 well water (non-saline, near neutral pH, and oxic in nature) and saturated steam at 100{sup 0}C. Microstructural conditions include solution annealed and long furnace heat treatments to provoke a sensitized structure. However, this particular type of stainless steel may be susceptible to long-term, low-temperature sensitization because of the combination of expected time at elevated temperature and residual stress in the container after emplacement in the repository. Other grades of austenitic stainless steels are reported to be more resistant to low-temperature sensitization. Future work will therefore include more extensive testing of these grades. 15 references, 5 figures, 7 tables.

Physical Description

37 p.

Notes

NTIS, PC A03/MF A01; OSTI as DE85004415

Source

  • National Association of Corrosion Engineers annual meeting and materials performance and corrosion show, Boston, MA (United States), 25-29 Mar 1985

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  • Other: DE85004415
  • Report No.: UCRL--91804
  • Report No.: CONF-850311--3
  • Grant Number: W-7405-ENG-48
  • DOI: 10.2172/59343 | External Link
  • Office of Scientific & Technical Information Report Number: 59343
  • Archival Resource Key: ark:/67531/metadc694800

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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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  • November 1, 1984

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  • Aug. 14, 2015, 8:43 a.m.

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  • Feb. 16, 2016, 2:34 p.m.

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Juhas, M.C.; McCright, R.D. & Garrison, R.E. Behavior of stressed and unstressed 304L specimens in tuff repository environmental conditions, report, November 1, 1984; California. (digital.library.unt.edu/ark:/67531/metadc694800/: accessed November 18, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.