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MRS Online Proceedings Library (OPL) MRS Online Proceedings Library (OPL)

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Preliminary Results On Ultrasonic Attenuation Detection Of Neutron Irradiation Embrittlement Of Nuclear Reactor Steel

Published online by Cambridge University Press:  10 February 2011

A. L. Hiser  and
R. E. Green
A. L. Hiser
Affiliation:
Center for Nondestructive Evaluation, The Johns Hopkins University, Baltimore, MD 21218, alhl@nrc.gov
R. E. Green
Affiliation:
Center for Nondestructive Evaluation, The Johns Hopkins University, Baltimore, MD 21218, alhl@nrc.gov
Corresponding
E-mail address:
alhl@nrc.gov
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Abstract

Neutron bombardment of reactor pressure vessel (RPV) steels causes reductions in fracture toughness in these steels, termed neutron irradiation embrittlement. Currently there are no accepted methods for nondestructive determination of the extent of the irradiation embrittlement nor the actual fracture toughness of the reactor pressure vessel. This paper provides preliminary results of an effort addressing the use of ultrasonic attenuation as a suitable parameter for nondestructive determination of irradiation embrittlement in RPV steels.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 503: Symposium JJ – Nondestructive Characterization of Materials in Aging Systems , 1997 , 175
Copyright
Copyright © Materials Research Society 1998

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References

1. Appendices G (Fracture Toughness Requirements) and H (Reactor Vessel Material Surveillance Program Requirements) to Part 50 of Title 10 of the Code of Federal Regulations, U. S. Government Printing Office, Washington, D.C., 1993.Google Scholar
2. U. S. Nuclear Regulatory Commission, “Radiation Embrittlement of Reactor Vessel Materials,” Regulatory Guide 1.99, Revision 2, May 1988.Google Scholar
3. Klinman, R., Webster, G. R., Marsh, F. J. and Stephenson, E. T., “Ultrasonic Prediction of Grain Size, Strength and Toughness in Plain Carbon Steel,” Materials Evaluation, 38, No. 10, October 1980, pp. 26–32.Google Scholar
4. Vary, A., “Section 12 - Material Property Characterization,” in Nondestructive Testing Handbook, Volume 7 Ultrasonic Testing, edited by Birks, A. S., Green, R. E. Jr., and Mclntire, P. (American Society for Nondestructive Testing, 1991) pp. 382–431.Google Scholar

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