Characterization of welding residual stresses with neutron diffraction

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Description

Welding residual stresses are a key concern in the fabrication and use of structural components containing welds. Residual stresses in welds are caused by non-uniform expansion and shrinkage of differently heated zones during the thermal transient of a weld pass. In some alloys, solid state phase transformations occurring during the welding transient contribute additional residual stresses. Manufacturing problems arising from welding residual stresses include cracking and dimensional distortion. During use, tensile stresses in the welded zone limit the fatigue resistance of the component under cyclic loading. In an aggressive environment, tensile welding residual stresses also create a necessary condition for ... continued below

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6 p.

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Wang, X.L.; Spooner, S.; Hubbard, C.R.; Taljat, B. & Feng, Z. March 1, 1998.

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Description

Welding residual stresses are a key concern in the fabrication and use of structural components containing welds. Residual stresses in welds are caused by non-uniform expansion and shrinkage of differently heated zones during the thermal transient of a weld pass. In some alloys, solid state phase transformations occurring during the welding transient contribute additional residual stresses. Manufacturing problems arising from welding residual stresses include cracking and dimensional distortion. During use, tensile stresses in the welded zone limit the fatigue resistance of the component under cyclic loading. In an aggressive environment, tensile welding residual stresses also create a necessary condition for stress-corrosion cracking to take place.

Physical Description

6 p.

Notes

OSTI as DE98004895

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  • 1998 SEM spring conference on experimental and applied mechanics, Houston, TX (United States), 1-3 Jun 1998

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  • Other: DE98004895
  • Report No.: ORNL/CP--97550
  • Report No.: CONF-980627--
  • Grant Number: AC05-96OR22464
  • DOI: 10.2172/672109 | External Link
  • Office of Scientific & Technical Information Report Number: 672109
  • Archival Resource Key: ark:/67531/metadc704796

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Creation Date

  • March 1, 1998

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • Jan. 21, 2016, 4:55 p.m.

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Wang, X.L.; Spooner, S.; Hubbard, C.R.; Taljat, B. & Feng, Z. Characterization of welding residual stresses with neutron diffraction, report, March 1, 1998; Tennessee. (digital.library.unt.edu/ark:/67531/metadc704796/: accessed September 19, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.