Pressure-vessel-steel irradiation-embrittlement formulas derived for PWR surveillance data

Conference · Sat Jan 01 04:00:00 EST 1983

OSTI ID:5956329

Guthrie, G L

A least squares analysis has been used to determine functional relationships connecting: (1) the irradiation induced increase in the 41 joule Charpy transition temperature, (2) the pressure vessel steel chemistry, and (3) the irradiation fluence. The data base consisted of transition temperature increases and associated chemistry and fluence value for 41 weld metal points and 106 base metal points. Deficiencies in chemistry information prohibited inclusion of particular data points in parts of the study. All but two of the data points are from PWR surveillance irradiations. The data was originally supplied by Dr. P.N. Randall of the NRC. Most of the fluence values are those determined by R.L. Simons, et al. The analysis was done for the combined data and for the plate and weld data separately.

• Research Organization: Westinghouse Hanford Co., Richland, WA (USA)
• DOE Contract Number: AC06-76FF02170
• OSTI ID: 5956329
• Report Number(s): HEDL-SA-2882; CONF-830609-49; ON: DE83016008
• Country of Publication: United States
• Language: English

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