Residual stresses may be generated in target structural material used in accelerator-driven transmutation due to plastic deformation. Nondestructive positron annihilation spectroscopic (PAS) method has been used to estimate residual stresses in candidate structural materials such as martensitic Alloy EP-823 and Alloy HT-9. Different line shape parameters (S, W & T) obtained from the PAS measurements have been related to the degree of cold deformation. The results indicate that the magnitude of S parameter was enhanced at the intermediate level of cold deformation followed by an almost identical S value at the highest level of cold reduction. Conversely, the T parameter was reduced at higher level of cold deformation. The evaluation of the cold-worked specimens by transmission electron microscopy revealed the presence of dislocations, as expected.
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ASME 2005 Pressure Vessels and Piping Conference
July 17–21, 2005
Denver, Colorado, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
0-7918-4190-1
PROCEEDINGS PAPER
Characterization of Residual Stresses in Structural Materials for Nuclear Applications Available to Purchase
Ajit K. Roy,
Ajit K. Roy
University of Nevada at Las Vegas, Las Vegas, NV
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Subhra Bandyopadhyay,
Subhra Bandyopadhyay
University of Nevada at Las Vegas, Las Vegas, NV
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Silpa Budugur Suresh,
Silpa Budugur Suresh
University of Nevada at Las Vegas, Las Vegas, NV
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Douglas Wells
Douglas Wells
Idaho State University, Pocatello, ID
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Ajit K. Roy
University of Nevada at Las Vegas, Las Vegas, NV
Subhra Bandyopadhyay
University of Nevada at Las Vegas, Las Vegas, NV
Silpa Budugur Suresh
University of Nevada at Las Vegas, Las Vegas, NV
Douglas Wells
Idaho State University, Pocatello, ID
Paper No:
PVP2005-71490, pp. 113-118; 6 pages
Published Online:
July 29, 2008
Citation
Roy, AK, Bandyopadhyay, S, Budugur Suresh, S, & Wells, D. "Characterization of Residual Stresses in Structural Materials for Nuclear Applications." Proceedings of the ASME 2005 Pressure Vessels and Piping Conference. Volume 5: High Pressure Technology, Nondestructive Evaluation, Pipeline Systems, Student Paper Competition. Denver, Colorado, USA. July 17–21, 2005. pp. 113-118. ASME. https://doi.org/10.1115/PVP2005-71490
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