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Small crack growth in the ODS Eurofer steel
- 1.0386558 - ÚFM 2013 RIV RU eng C - Conference Paper (international conference)
Kuběna, Ivo - Kruml, Tomáš
Small crack growth in the ODS Eurofer steel.
19th European Conference on Fracture: Fracture Mechanics for Durability, Reliability and Safety. Kazan: Kazan Scientific Centre of the RAS, 2012 - (Klingbeil, D.; Vormwald, M.; Eulitz, G.), No. 551. ISBN 978-5-905576-18-8.
[ECF 19 - European Conference on Fracture /19./. Kazan (RU), 26.08.2012-31.08.2012]
R&D Projects: GA ČR GA106/09/1954
Institutional support: RVO:68081723
Keywords : Small fatigue crack * ODS Eurofer steel * Paris-Erdogan law
Subject RIV: JL - Materials Fatigue, Friction Mechanics
Small crack growth kinetics of the ODS variant of high chromium steel called Eurofer was studied in this paper. The cylindrical specimens of 2 mm in diameter and of 7.6 mm of gauge length were used. A sharp notch of length of 50 micrometers and semicircular depth profile was prepared in the middle of gauge length using focus ion beam technique. Fatigue tests were regularly interrupted at given number of cycles, notched area was photographed and subsequently the micrographs were analyzed. An exponential dependence of crack length on number of cycles was found. Parameters of Paris-Erdogan law and small crack growth coefficient were determined.
Permanent Link: http://hdl.handle.net/11104/0215945
Number of the records: 1