Actions for Reduced Pressure Electron Beam Welding Evaluation Activities on a Ni-Cr-Mo Alloy for Nuclear Waste Packages [electronic resource].

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Reduced Pressure Electron Beam Welding Evaluation Activities on a Ni-Cr-Mo Alloy for Nuclear Waste Packages [electronic resource].

Published
Washington, D.C. : United States. Dept. of Energy, 2003.
Oak Ridge, Tenn. : Distributed by the Office of Scientific and Technical Information, U.S. Dept. of Energy.
Physical Description
PDF-FILE: 12; SIZE: 11.8 MBYTES pages
Additional Creators
Lawrence Livermore National Laboratory, United States. Department of Energy, and United States. Department of Energy. Office of Scientific and Technical Information
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Summary
The current waste package design for the proposed repository at Yucca Mountain Nevada, USA, employs gas tungsten arc welding (GTAW) in fabricating the waste packages. While GTAW is widely used in industry for many applications, it requires multiple weld passes. By comparison, single-pass welding methods inherently use lower heat input than multi-pass welding methods which results in lower levels of weld distortion and also narrower regions of residual stresses at the weld TWI Ltd. has developed a Reduced Pressure Electron Beam (RPEB) welding process which allows EB welding in a reduced pressure environment (≤ 1 mbar). As it is a single-pass welding technique, use of RPEB welding could (1) achieve a comparable or better materials performance and (2) lead to potential cost savings in the waste package manufacturing as compared to GTAW. Results will be presented on the initial evaluation of the RPEB welding on a Ni-Cr-Mo alloy (a candidate alloy for the Yucca Mountain waste packages) in the areas of (a) design and manufacturing simplifications, (b) material performance and (c) weld reliability.
Report Numbers
E 1.99:ucrl-jc-155291
ucrl-jc-155291
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Note
Published through SciTech Connect.
09/11/2003.
"ucrl-jc-155291"
Global 2003 ANS Embedded Topical Meeting, New Orleans, LA (US), 11/16/2003--11/20/2003.
Hill, M; Wong, L; McGregor, M; Richard, D; Day, S; DeWald, A; Hackel, L; Yang, N; Rebak, R; Torres, S; Rankin, J; Wong, F; Fielding, P; Dorsch, T; Punshon, C; Chen, H-L.
Funding Information
W-7405-ENG-48
View MARC record | catkey: 14411513