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Title: A predictive model for corrosion fatigue crack growth rates in RPV steels exposed to PWR environments

Abstract

Corrosion fatigue crack propagation rates have been measured in A533B Class 1 plate in stagnant PWR primary water for a range of steel sulphur contents, temperature and corrosion potential values. Parametric descriptions of the data collected under constant rig conditions give good correlations for each variable and are consistent with a crack tip environment controlled process related to sulphur chemistry. A modified crack velocity equation is proposed to include temperature, sulphur content, polarization potential, frequency and {Delta}K values and it is shown how the predictions compare with the proposed ASME XI revision. Critical fatigue situations are identified for 0.003% and 0.019% sulphur steels typical of modern and old plant. The use of the equation in assessing the synergistic effect of variables is discussed.

Authors:
; ;  [1]
  1. Sheffield Hallam Univ. (United Kingdom). School of Engineering
Publication Date:
OSTI Identifier:
191339
Report Number(s):
CONF-950740-
ISBN 0-7918-1337-1; TRN: IM9610%%340
Resource Type:
Book
Resource Relation:
Conference: Joint American Society of Mechanical Engineers (ASME)/Japan Society of Mechanical Engineers (JSME) pressure vessels and piping conference, Honolulu, HI (United States), 23-27 Jul 1995; Other Information: PBD: 1995; Related Information: Is Part Of Fatigue and crack growth: Environmental effects, modeling studies, and design considerations. PVP-Volume 306; Yukawa, S. [ed.] [Yukawa (Sumio), Boulder, CO (United States)]; Jones, D.P. [ed.] [Bettis Atomic Power Lab., West Mifflin, PA (United States)]; Mehta, H.S. [ed.] [GE Nuclear Energy, San Jose, CA (United States)]; PB: 331 p.
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 21 NUCLEAR POWER REACTORS AND ASSOCIATED PLANTS; PWR TYPE REACTORS; PRESSURE VESSELS; REACTOR MATERIALS; STEEL-ASTM-A533-B; CORROSION FATIGUE; CRACK PROPAGATION; PRIMARY COOLANT CIRCUITS; PARAMETRIC ANALYSIS; MATHEMATICAL MODELS; EXPERIMENTAL DATA; TEMPERATURE DEPENDENCE; SULFUR ADDITIONS; STRESS INTENSITY FACTORS; STRESS CORROSION

Citation Formats

Atkinson, J.D., Chen, Z., and Yu, J. A predictive model for corrosion fatigue crack growth rates in RPV steels exposed to PWR environments. United States: N. p., 1995. Web.
Atkinson, J.D., Chen, Z., & Yu, J. A predictive model for corrosion fatigue crack growth rates in RPV steels exposed to PWR environments. United States.
Atkinson, J.D., Chen, Z., and Yu, J. 1995. "A predictive model for corrosion fatigue crack growth rates in RPV steels exposed to PWR environments". United States. doi:.
@article{osti_191339,
title = {A predictive model for corrosion fatigue crack growth rates in RPV steels exposed to PWR environments},
author = {Atkinson, J.D. and Chen, Z. and Yu, J.},
abstractNote = {Corrosion fatigue crack propagation rates have been measured in A533B Class 1 plate in stagnant PWR primary water for a range of steel sulphur contents, temperature and corrosion potential values. Parametric descriptions of the data collected under constant rig conditions give good correlations for each variable and are consistent with a crack tip environment controlled process related to sulphur chemistry. A modified crack velocity equation is proposed to include temperature, sulphur content, polarization potential, frequency and {Delta}K values and it is shown how the predictions compare with the proposed ASME XI revision. Critical fatigue situations are identified for 0.003% and 0.019% sulphur steels typical of modern and old plant. The use of the equation in assessing the synergistic effect of variables is discussed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = 1995,
month =
}

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