Modeling Hydrogen-Induced Cracking of Titanium Alloys in Nuclear Waste Repository Environments

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This paper reviews the current understanding of hydrogen-induced cracking (HIC) of Ti Grade 7 and other relevant titanium alloys within the context of the current waste package design for the repository environmental conditions anticipated within the Yucca Mountain repository. The review concentrates on corrosion processes possible in the aqueous environments expected within this site. A brief background discussion of the relevant properties of titanium alloys, the hydrogen absorption process, and the properties of passive film on titanium alloys is presented as the basis for the subsequent discussion of model developments. The key corrosion processes that could occur are addressed individually. ... continued below

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18 pages

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Hua, F.; Mon, K.; Pasupathi, P. & Gordon, G. September 8, 2004.

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Description

This paper reviews the current understanding of hydrogen-induced cracking (HIC) of Ti Grade 7 and other relevant titanium alloys within the context of the current waste package design for the repository environmental conditions anticipated within the Yucca Mountain repository. The review concentrates on corrosion processes possible in the aqueous environments expected within this site. A brief background discussion of the relevant properties of titanium alloys, the hydrogen absorption process, and the properties of passive film on titanium alloys is presented as the basis for the subsequent discussion of model developments. The key corrosion processes that could occur are addressed individually. Subsequently, the expected corrosion performance of these alloys under the specific environmental conditions anticipated at Yucca Mountain is considered. It can be concluded that, based on the conservative modeling approaches adopted, hydrogen-induced cracking of titanium alloys will not occur under nuclear waste repository conditions since there will not be sufficient hydrogen in the alloy after 10,000 years of emplacement.

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18 pages

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INIS; OSTI as DE00837698

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  • Journal Name: Modeling Hydrogen-Induced Cracking of Titanium Alloys in Nuclear Waste Repository Environments; Other Information: No journal information given for this preprint

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  • Report No.: NONE
  • Office of Scientific & Technical Information Report Number: 837698
  • Archival Resource Key: ark:/67531/metadc788160

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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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  • September 8, 2004

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  • Dec. 3, 2015, 9:30 a.m.

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  • Feb. 10, 2016, 7:43 p.m.

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Hua, F.; Mon, K.; Pasupathi, P. & Gordon, G. Modeling Hydrogen-Induced Cracking of Titanium Alloys in Nuclear Waste Repository Environments, article, September 8, 2004; Las Vegas, Nevada. (digital.library.unt.edu/ark:/67531/metadc788160/: accessed November 19, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.