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Lifetime estimation of a BWR core shroud in terms of IGSCC

Journal Article · · Nuclear Engineering and Design
 [1];  [2];  [2];  [3]
  1. 4D Power, LLC, Menlo Park, CA (United States)
  2. Univ. of California, Berkeley, CA (United States)
  3. Idaho National Lab. (INL), Idaho Falls, ID (United States)
The continued operation of aging Boiling Water Reactors (BWRs) worldwide requires gradually increasing cost of inspection, maintenance, and repair. Intergranular Stress Corrosion Cracking (IGSCC) in sensitized austenitic stainless steel piping first became a major issue for BWRs in the 1980s, resulting in recognition of the susceptibility of reactor internals to IGSCC. Shroud cracking identified in 1993–1994 confirmed that IGSCC of internals is a significant issue for BWRs. IGSCC is a time-dependent, material degradation process, which is caused and accelerated by the presence of residual stresses, material sensitization, irradiation, cold work, elevated temperature, and corrosive environments. This paper emphasizes the importance of accounting for corrosive environments, or more exactly, electrochemical phenomena in modelling IGSCC and predicting the service life of BWR in-vessel components, and stresses the necessity of performing such modeling not just for a single state point under full power conditions, but for the whole operating history of the reactor, including startups and shutdowns. Overall, this paper demonstrates that ignoring electrochemical considerations may result in underestimating component lifetime and lead to unnecessary expenses for inspection and repair.
Research Organization:
Idaho National Laboratory (INL), Idaho Falls, ID (United States)
Sponsoring Organization:
USDOE; USDOE Office of Nuclear Energy (NE)
Grant/Contract Number:
AC07-05ID14517; NE0008541
OSTI ID:
1668311
Alternate ID(s):
OSTI ID: 1659342
Report Number(s):
INL/JOU--19-52431-Rev000
Journal Information:
Nuclear Engineering and Design, Journal Name: Nuclear Engineering and Design Journal Issue: n/a Vol. 368; ISSN 0029-5493
Publisher:
ElsevierCopyright Statement
Country of Publication:
United States
Language:
English

References (14)

A coupled environment model for stress corrosion cracking in sensitized type 304 stainless steel in LWR environments journal January 1991
Prediction of crack growth rate in Type 304 stainless steel using artificial neural networks and the coupled environment fracture model journal December 2014
Modular system for probabilistic fracture mechanics analysis of embrittled reactor pressure vessels in the Grizzly code journal January 2019
An advanced coupled environment fracture model for hydrogen-induced cracking in alloy 600 in PWR primary heat transport environment journal June 2018
Remaining life prediction of the core shroud due to stress corrosion cracking failure in BWRs using numerical simulations journal June 2014
Effect of Loading Rate on Environmentally Controlled Cracking of Sensitized 304 Stainless Steel in High Purity Water journal November 1980
Viability of Hydrogen Water Chemistry for Protecting In-Vessel Components of Boiling Water Reactors journal March 1992
Effect of Water Impurities on Stress Corrosion Cracking in a Boiling Water Reactor journal May 1985
Stress Corrosion Cracking of Sensitized AISI 304 Stainless Steel in Oxygenated High Temperature Chloride Solutions Containing Cupric (Cu 2+ ) and Lead (Pb 2+ ) Ions journal August 1985
Effects of Impurities on the IGSCC of Stainless Steel in High-Temperature Water journal February 1988
Apparatus for Controlled Hydrodynamic Electrochemical and Corrosion Studies in High-Temperature Aqueous Systems journal March 1988
Thin-Layer Mixed-Potential Model for the Corrosion of High-Level Nuclear Waste Canisters journal May 1990
Effects of Impurities and Supporting Electrolytes On SCC of 304 Stainless Steel in High Temperature Aqueous Environments journal October 1982
Effect of Sulfuric Acid, Oxygen, and Hydrogen in High Temperature Water on Stress Corrosion Cracking of Sensitized AISI 304 Stainless Steel journal October 1984

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