Impact of phase stability on the corrosion behavior of the austenitic candidate materials for NNWSI [Nevada Nuclear Waste Storage Investigations]

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The Nuclear Waste Management Program at Lawrence Livermore National Laboratory is responsible for the development of the waste package design to meet the Nuclear Regulatory Commission licensing requirements for the Nevada Nuclear Waste Storage Investigations (NNWSI) Project. The metallic container component of the waste package is required to assist in providing substantially complete containment of the waste for a period of up to 1000 years. Long term phase stability of the austenitic candidate materials (304L and 316L stainless steels and alloy 825) over this time period at moderate temperatures (100-250{sup 0}C) can impact the mechanical and corrosion behavior of the ... continued below

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12 p.

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Bullen, D.B.; Gdowski, G.E. & McCright, R.D. October 1, 1987.

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Description

The Nuclear Waste Management Program at Lawrence Livermore National Laboratory is responsible for the development of the waste package design to meet the Nuclear Regulatory Commission licensing requirements for the Nevada Nuclear Waste Storage Investigations (NNWSI) Project. The metallic container component of the waste package is required to assist in providing substantially complete containment of the waste for a period of up to 1000 years. Long term phase stability of the austenitic candidate materials (304L and 316L stainless steels and alloy 825) over this time period at moderate temperatures (100-250{sup 0}C) can impact the mechanical and corrosion behavior of the metal barrier. A review of the technical literature with respect to phase stability of 304L, 316L and 825 is presented. The impact of martensitic transformations, carbide precipitation and intermediate ({sigma}, chi, and eta) phase formation on the mechanical properties and corrosion behavior of these alloys at repository relevant conditions is discussed. The effect of sensitization on intergranular stress corrosion cracking (IGSCC) of each alloy is also addressed. A summary of the impact of phase stability on the degradation of each alloy in the proposed repository environment is included. 32 refs., 6 figs.

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12 p.

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NTIS, PC A03/MF A01; OSTI as DE88006243

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  • Symposium on the scientific basis for nuclear waste management, Boston, MA (United States), 30 Nov - 5 Dec 1987

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  • Other: DE88006243
  • Report No.: UCRL--97562
  • Report No.: CONF-8711100--3
  • Grant Number: W-7405-ENG-48
  • Office of Scientific & Technical Information Report Number: 60362
  • Archival Resource Key: ark:/67531/metadc692250

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Office of Scientific & Technical Information Technical Reports

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  • October 1, 1987

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  • Aug. 14, 2015, 8:43 a.m.

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  • May 31, 2016, 6:27 p.m.

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Bullen, D.B.; Gdowski, G.E. & McCright, R.D. Impact of phase stability on the corrosion behavior of the austenitic candidate materials for NNWSI [Nevada Nuclear Waste Storage Investigations], article, October 1, 1987; United States. (digital.library.unt.edu/ark:/67531/metadc692250/: accessed June 20, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.