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http://dx.doi.org/10.20466/KPVP.2017.13.2.019

Environmental Fatigue Behaviors of Austenitic Stainless Steels in the Primary Water Environment of Nuclear Power Plants  

Lee, Hyeon Bae (KAIST 원자력 및 양자공학과)
Kim, Ho-Sub (KAIST 원자력 및 양자공학과)
Kim, Taesoon (한국수력원자력 중앙연구원)
Jang, Changheui (KAIST 원자력 및 양자공학과)
Publication Information
Transactions of the Korean Society of Pressure Vessels and Piping / v.13, no.2, 2017 , pp. 19-30 More about this Journal
Abstract
Austenitic Stainless Steels (ASSs) are widely used as structural materials in the pressurized water reactors (PWRs) because of their superior mechanical properties and corrosion resistance. However, it is well known that ASSs are susceptible to the environmental assisted cracking (EAC) such as environmental assisted fatigue (EAF) during the long term operation. There have been extensive tests and researches to understand the extent and the mechanisms of environmental effects. In this paper, the world-wide EAF test results of ASSs are introduced including those of Korean test programs. The suggested EAF mechanisms of ASSs are also discussed. Finally, the areas of further research to resolve the issue of EAF are suggested.
Keywords
Environmentally Assisted Fatigue; Austenitic Stainless Steel; Low Cycle Fatigue;
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