Practical Failure Analysis

, Volume 3, Issue 4, pp 56–62 | Cite as

Analysis of porosity associated with Hanford 3013 outer container welds

  • W. L. Daugherty
  • G. R. Cannell
Peer Reviewed Articles

Abstract

An unacceptable degree of porosity was identified in several closure welds on stainless steel containers for plutonium-bearing materials. The pores developed in the weld tie-in region due to gas trapped by the weld pool during the closure process. This paper describes the efforts to trace the root cause of the porosity to the geometric conditions of the weld joint and establish corrective actions to minimize such porosity.

Keywords

GTAW porosity type 316L stainless steel 

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References

  1. 1.
    G. Cannell, W. Daugherty, L. Gaston, S. Howard, P. Korinko, D. Maxwell, G. McKinney, C. Sessions, and S. West: “GTA Welding Research and Development for Plutonium Containment,”Proc. 6th Int. Conf. on Trends in Welding Research, April 2002, ASM International.Google Scholar
  2. 2.
    G.R. Cannell, W.L. Daugherty, and M.W. Stokes: “Welds Safeguard Plutonium-Bearing Containers,”Weld. J., July 2002,81(7).Google Scholar
  3. 3.
    C.D. Lundin: “Fundamentals of Weld Discontinuities and Their Significance,” Bulletin 295, Weld Research Council, 1984.Google Scholar

Copyright information

© ASM International - The Materials Information Society 2003

Authors and Affiliations

  • W. L. Daugherty
    • 1
  • G. R. Cannell
    • 2
  1. 1.Westinghouse Savannah River CompanyAiken
  2. 2.Fluor Federal ServicesRichland

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