BWR Environmental Cracking Margins for Carbon-Steel Piping. Final Report

摘要

Results are presented of a three-year experimental program comprising fatigue tests, constant extension rate tests, constant load tests, and electrochemical studies on plain carbon steel specimens in a range of high temperature oxygenated water environments. The combinations of loading, temperature and dissolved oxygen content leading to pronounced environmentally assisted cracking effects are identified and two approaches for providing additional margin for environmental degradation in carbon steel piping design are outlined. (ERA citation 07:046666)