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Application of a Position Sensitive Scintillation Detector for Nondestructive Residual Stress Measurements Inside Stainless Steel Piping

Published online by Cambridge University Press:  06 March 2019

C.O. Ruud ,
P.S. DiMascio  and
D.M. Melcher
C.O. Ruud
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
P.S. DiMascio
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
D.M. Melcher
Affiliation:
Materials Research Laboratory, The Pennsylvania State University, University Park, PA 16802
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Extract

As early as 1974 cracking was observed in the austenitic stainless steel piping systems of several Boiling Water Reactors [1,2]. Failure analysis indicated that the cracks developed through intergranular stress-corrosion cracking and an active interest in residual stress measurement methodologies developed. This paper describes the procedures and demonstration testing employed to provide absolute residual stress measurement, nondestructively, on the inside surface of pipe specimens. A Ruud-Barrett position sensitive detector (PSSD)* was used to build an EPRI pipe stress analyzer which was developed for these residual stress measurements [3,4].

Type
V. X-Ray Stress Determination, Position Sensitive Detectors, Fatigue and Fracture Characterization
Information
Advances in X-Ray Analysis , Volume 26: Thirty-First Annual Conference on Applications of X-ray Analysis, August 1-6, 1982 , 1982 , pp. 233 - 243
Copyright
Copyright © International Centre for Diffraction Data 1982

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References

1. Klepfer, H.|H. et al., “Investigation of Cause of Cracking in Austenitic Stainless Steel Piping,” NEDO-21000-1, 75NED35, Class 1, General Electric Co. Report, General Llectric Co., Corporate Research Center, Schenectady, NY, July 1975.Google Scholar
2. Gianazzi, A.|J., “Studies on AISX Type—304 Stainless Steel Piping Weldments for Use in BWR Applications,” EPRI Report NP-944, Proj, 449-2, Final Report, Electric Power Research Institute, Palo Alto, CA, Dec. 1978.Google Scholar
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5. Ruud, C.|O. and Barrett, C.|S., “Use of Cr K-Beta X-Rays and a Position Sensitive Detector for Residual Stress Measurement in Stainless Steel Pipe,” Adv. in X-Ray Anal., Vol. 22, pp. 247–249, Plenum Press, MY, 1979.Google Scholar
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