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Corrosion fatigue crack initiation in 12% chromium stainless steel

✍ Scribed by Ryuichiro Ebara

Publisher
Elsevier Science
Year
2007
Tongue
English
Weight
696 KB
Volume
468-470
Category
Article
ISSN
0921-5093

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✦ Synopsis

Characteristics of corrosion fatigue failures of steam turbine blades derived from failure analysis are summarized. Then corrosion fatigue variables on corrosion fatigue strength of 12% chromium stainless steel are briefly reviewed. The paper emphasizes initiation and growth of corrosion pits in the corrosion fatigue crack initiation process. A recent investigation of the early stages of corrosion pit initiation by use of electrochemical noise measurement is demonstrated. Finally, some recommendations are given how to clarify the corrosion fatigue crack initiation process.

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