Recent Improvements in Size Effects Correlations for DBTT and USE of Ferritic Steels

Abstract

Currently available correlations for the effects of specimen size on the USE were developed for relatively ductile steels and will not serve as well when the steels become embrittled. Size effects correlations were developed recently for the impact properties of less ductile HT9 to be applied to other initially more ductile steels as they lose their ductility during irradiation. These new correlations successfully predict the ductile brittle transition temperature (DBTT) and the upper shelf energy (USE) of full size Charpy specimens based on subsize specimen data. The new DBTT and the USE correlations were tested against published experimental data on other ferritic steels and shown to perform successfully at lower USE particularly when both precracked and notched only specimens were employed

Department(s)

Nuclear Engineering and Radiation Science

Document Type

Technical Report

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 1993 American Technical Publishers, All rights reserved.

Publication Date

01 Jan 1993

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