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Ultrasonic Nde Of Radiation Damage

Published online by Cambridge University Press:  10 February 2011

B. R. Tittmann
B. R. Tittmann*
Affiliation:
ESM Department, The Pennsylvania State University, University Park, PA 16802
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Abstract

Irradiation degrades the fracture toughness of reactor pressure vessel steels. To date no satisfactory method has been developed to nondestructively measure the loss of fracture toughness. Metal embrittlement is often associated with impurity pinning of dislocations. A review is presented of the interaction of dislocations with ultrasonic waves to give rise to attenuation or internal friction. The emphasis is on amplitude dependent attenuation due to dislocation breakaway from pinning points. Recommendations for future work are provided.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 503: Symposium JJ – Nondestructive Characterization of Materials in Aging Systems , 1997 , 183
Copyright
Copyright © Materials Research Society 1998

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References

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