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Fatigue crack growt...
Fatigue crack growth behaviour of an alternative single crystal nickel base superalloy
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- Palmert, Frans (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten,Siemens Ind Turbomachinery AB, Sweden
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- Moverare, Johan (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Gustafsson, David (författare)
- Siemens Ind Turbomachinery AB, Sweden
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- Busse, Christian (författare)
- Linköpings universitet,Mekanik och hållfasthetslära,Tekniska fakulteten
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(creator_code:org_t)
- ELSEVIER SCI LTD, 2018
- 2018
- Engelska.
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Ingår i: International Journal of Fatigue. - : ELSEVIER SCI LTD. - 0142-1123 .- 1879-3452. ; 109, s. 166-181
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- The fatigue crack growth behaviour of a single crystal nickel base superalloy was studied at three different temperatures (20 degrees C, 500 degrees C and 750 degrees C) and three different crystallographic orientations. At the highest testing temperature, the influence of hold time at maximum load was also evaluated. Under some of the testing conditions, crystallographic crack growth occurred along {1 1 1} planes, which were non-perpendicular to the loading direction. The propensity for crystallographic cracking was observed to be strongly temperature dependent with a maximum occurring at the intermediate testing temperature of 500 degrees C. During non-crystallographic, Mode I crack growth the crack tended to avoid the gamma particles and propagated preferentially through the gamma matrix.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
Nyckelord
- Single crystal superalloy; Fatigue; Crack growth; Crystallographic crack growth; Temperature dependence; Orientation dependence; Hold time influence
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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