Stainless steel submerged arc weld fusion line toughness

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Description

This effort evaluated the fracture toughness of austenitic steel submerged-arc weld (SAW) fusion lines. The incentive was to explain why cracks grow into the fusion line in many pipe tests conducted with cracks initially centered in SAWS. The concern was that the fusion line may have a lower toughness than the SAW. It was found that the fusion line, Ji. was greater than the SAW toughness but much less than the base metal. Of greater importance may be that the crack growth resistance (JD-R) of the fusion line appeared to reach a steady-state value, while the SAW had a continually ... continued below

Physical Description

86 p.

Creation Information

Rosenfield, A. R.; Held, P. R. & Wilkowski, G. M. April 1995.

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This report is part of the collection entitled: Office of Scientific & Technical Information Technical Reports and was provided by UNT Libraries Government Documents Department to Digital Library, a digital repository hosted by the UNT Libraries. More information about this report can be viewed below.

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  • U.S. Nuclear Regulatory Commission
    Publisher Info: Nuclear Regulatory Commission, Washington, DC (United States). Div. of Engineering Technology
    Place of Publication: Washington D.C.

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Description

This effort evaluated the fracture toughness of austenitic steel submerged-arc weld (SAW) fusion lines. The incentive was to explain why cracks grow into the fusion line in many pipe tests conducted with cracks initially centered in SAWS. The concern was that the fusion line may have a lower toughness than the SAW. It was found that the fusion line, Ji. was greater than the SAW toughness but much less than the base metal. Of greater importance may be that the crack growth resistance (JD-R) of the fusion line appeared to reach a steady-state value, while the SAW had a continually increasing JD-R curve. This explains why the cracks eventually turn to the fusion line in the pipe experiments. A method of incorporating these results would be to use the weld metal J-R curve up to the fusion-line steady-state J value. These results may be more important to LBB analyses than the ASME flaw evaluation procedures, since there is more crack growth with through-wall cracks in LBB analyses than for surface cracks in pipe flaw evaluations.

Physical Description

86 p.

Notes

INIS; OSTI as TI95010950

Source

  • Other Information: PBD: Apr 1995

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  • Other: TI95010950
  • Report No.: NUREG/CR--6251
  • Report No.: BMI--2180
  • DOI: 10.2172/50934 | External Link
  • Office of Scientific & Technical Information Report Number: 50934
  • Archival Resource Key: ark:/67531/metadc695563

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Creation Date

  • April 1995

Added to The UNT Digital Library

  • Aug. 14, 2015, 8:43 a.m.

Description Last Updated

  • April 8, 2016, 8:25 p.m.

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Rosenfield, A. R.; Held, P. R. & Wilkowski, G. M. Stainless steel submerged arc weld fusion line toughness, report, April 1995; Washington D.C.. (digital.library.unt.edu/ark:/67531/metadc695563/: accessed August 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.