期刊
INTERNATIONAL JOURNAL OF FATIGUE
卷 138, 期 -, 页码 -出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.ijfatigue.2020.105675
关键词
Code of practice; Crack growth; Experiment development; Internal round robin; Thermo-mechanical fatigue
资金
- European Union [686600]
- H2020 Societal Challenges Programme [686600] Funding Source: H2020 Societal Challenges Programme
The current paper presents work on identification and evaluation of a range of factors influencing accuracy and comparability of data generated by three laboratories carrying out stress-controlled thermo-mechanical fatigue crack growth tests. It addresses crack length measurements, heating methods and temperature measurement techniques. It also provides guidance for pre-cracking and use of different specimen geometries as well as Digital Image Correlation imaging for crack monitoring. The majority of the tests have been carried out on a coarse grain polycrystalline nickel-base superalloy using two phase angles, Out-of-Phase and In-Phase cycles with a triangular waveform and a temperature range of 400-750 degrees C.
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