A Review of Stress Corrosion Cracking/Fatigue Modeling for Light Water Reactor Cooling System Components
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منابع مشابه
Development of a Digital Radiographic System for Power Plant Components
Corrosion-fatigue, a cracking mechanism in fossil-fueled generating plants, predominately occurs in the water walls and economizers of sub-critical plants. Cracking attributed to corrosion-fatigue has occurred in water wall tubing of both membrane and tangential designs. The occurrence (particularly in membrane water wall tubing) presents a challenge for nondestructive evaluation (NDE) because ...
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This review paper examines mechanisms controlling IGSCC in selected LWR components. Emphasis is placed on identifying material microstructures and microchemistries which promote susceptibility to premature failure. Two important examples are evaluated in some detail: stainless steel pipe cracking and primary-side SCC of alloy 600 steam generator tubing. In each case, grain boundary segregation ...
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Intergranular stress corrosion cracking &YSCC) is a pervasive and generic problem in current light water reactor and advanced reactor designs that can lead to widespread component failure. IASCC is believed to be due to either to changes in the grain boundary composition, the microstructure or the water chemistry and corrosion potential. Of greatest interest are the changes in composition and m...
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First row rotating blades of four axial-flow compressors were prematurely fractured. Previous investigations showed that the site atmosphere contains corrosive compounds which lead to an increase in possibility of pitting on the blades. It was also revealed that the crack was originated from two corrosion pits. Thus, this work is conducted to ascertain which of fatigue or stress corrosion crack...
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Currently, more than 16% of world energy demand is fulfilled by nuclear power plants (NPPs). This amounts to 2800 TWh energy annually generated by more than 441 NPPs operating in 31 countries worldwide [17]. Amongst these NPPs, the LWRs contribute to more than 85% of total energy produced by all nuclear reactors [20]. With the advantage of being proven technology along with extensive operationa...
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تاریخ انتشار 2012