Investigation of shot peening residual stress on alloy 718 leaf springs for primary water stress corrosion cracking analysis
- Westinghouse Electric Company, Hopkins, SC 29061(United States)
This paper investigates the residual stress distributions from shot peening of Nickel Alloy 718 fuel assembly hold down spring material of PWR. Precision X-Ray Diffraction (XRD) testing has been performed to quantify residual stress versus depth on shot peened Nickel Alloy 718 samples that have been plastically deformed to different levels of stress. The results from these XRD tests have been used to benchmark a finite element model (FEM) that includes the effects of the residual compressive stress layer from shot peening. The benchmarked method of applying shot peening residual stresses can be applied to FEMs of Nickel Alloy 718 fuel assembly hold down springs to investigate the stress distributions in the springs at different loading conditions. XRD test results with a comparison to the benchmarked FEM are presented. (authors)
- Research Organization:
- American Nuclear Society - ANS, 555 North Kensington Avenue, La Grange Park, IL 60526 (United States)
- OSTI ID:
- 22764060
- Resource Relation:
- Conference: TOP FUEL 2016: LWR fuels with enhanced safety and performance, Boise, ID (United States), 11-15 Sep 2016; Other Information: Country of input: France; 3 refs.; Related Information: In: TOP FUEL 2016 Proceedings| 1670 p.
- Country of Publication:
- United States
- Language:
- English
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