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Residual Stresses in Multilayer Welds with Different Martensitic Transformation Temperatures Analyzed by High-Energy Synchrotron Diffraction
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Residual Stress, Texture, and Phase Investigation of Autogenous Edge Welds Using High Energy Synchrotron Radiation
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Measurement of Residual Stresses in Surface Treated Stainless Steel Groove Welds
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Stability and Relaxation of Welding Residual Stresses
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Deformation Histories Relevant to Multipass Girth Welds: Temperature, Stress and Plastic Strain Histories
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Validation of Residual Stresses of Finite Element Simulation of Multi Pass Butt-Welded Plates Using the Contour Method
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Measurement of Residual Stresses in Surface Treated Stainless Steel Groove Welds

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Abstract:

This paper examines the extent to which mechanical shot peening (MSP), ultrasonic impact treatment (UIT) and laser shock peening (LSP) can affect the tensile residual stresses in the fusion zone caused by welding for a 10mm multi-pass 'V' groove weld within a 20 mm thick 304L stainless steel plate. Stresses are measured by deep hole drilling, neutron diffraction and incremental center hole drilling. For the UIT and LSP treated samples, the tensile stresses present in the as-welded plate are reversed to compressive stresses to a depth in excess of 2-4mm. For MSP the affected depth is much less (~0.5mm). The depth of these compressive stresses is similar to those measured in 20 mm thick parent plate test coupons.

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Residual Stresses VIII View Preview

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Periodical:

Materials Science Forum (Volume 681)

Pages:

49-54

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.681.49

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Online since:

March 2011

Authors:

D.M. Goudar, Mark Turski, Suzanne Clitheroe, Ed J. Kingston, Chris Gill, Philip J. Withers, David John Smith

Keywords:

Deep Hole Drilling (DHD), Neutron Diffraction, Peening, Residual Stress, Welding

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© 2011 Trans Tech Publications Ltd. All Rights Reserved

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