Journal of Materials Science

, Volume 50, Issue 2, pp 784–793 | Cite as

Through-thickness distributions of residual stresses in an 80 mm thick weld using neutron diffraction and contour method

  • W. WooEmail author
  • G. B. An
  • V. T. Em
  • A. T. De Wald
  • M. R. Hill
Original Paper


Through-thickness distributions of residual stresses were determined in an 80-mm thick ferritic steel weld using neutron diffraction and contour method. A two-wavelength (1.55 and 2.39 Å) combined method, which is based on minimized cross-section and attenuation, enables us to measure residual stresses in such a thick specimen using neutron diffraction. Moreover, the results were complemented by contour method destructively. Significant tensile longitudinal stresses (up to 660 MPa approaching the yield strength) occur along the weld centerline within 10 mm from the top surface, while compressive transverse stresses (about −100 MPa) were found near the weld mid-thickness. Grain size, hardness, and charpy impact energy were further examined to suggest a critical location of fracture associated with residual stresses.


Residual Stress Weld Metal Neutron Diffraction Tensile Residual Stress Fusion Line 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.



This research activity was supported by the Nuclear Research and Development Program of the Korea Science and Engineering Foundation funded by the Korean government. It is also supported by POSCO Project No. 20126193. The authors would like to thank C. Truman, D. Smith, J. U. Park, M. H. Kang, and J. W. Lee for their help.


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Copyright information

© Springer Science+Business Media New York 2014

Authors and Affiliations

  • W. Woo
    • 1
    Email author
  • G. B. An
    • 2
  • V. T. Em
    • 3
  • A. T. De Wald
    • 4
  • M. R. Hill
    • 5
  1. 1.Neutron Science DivisionKorea Atomic Energy Research InstituteDaejeonSouth Korea
  2. 2.Technical Research LaboratoriesPOSCOPohangSouth Korea
  3. 3.Neutron Research DepartmentNRC Kurchatov InstituteMoscowRussia
  4. 4.Hill Engineering LLCRancho CordovaUSA
  5. 5.Department of Mechanical and Aerospace EngineeringUniversity of CaliforniaDavisUSA

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