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Influence of high t...
Influence of high temperature hold times on the fatigue crack propagation in Inconel 718
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- Gustafsson, David (författare)
- Linköpings universitet,Hållfasthetslära,Tekniska högskolan
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- Moverare, Johan (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
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- Johansson, Sten (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska högskolan
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- Simonsson, Kjell (författare)
- Linköpings universitet,Hållfasthetslära,Tekniska högskolan
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- Hörnqvist Colliander, Magnus, 1979 (författare)
- Volvo Aero Corp
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- Mansson, T (författare)
- Volvo Aero Corp
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- Sjöström, Sören (författare)
- Linköpings universitet,Hållfasthetslära,Tekniska högskolan
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(creator_code:org_t)
- Elsevier, 2011
- 2011
- Engelska.
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Ingår i: International Journal of Fatigue. - : Elsevier. - 0142-1123 .- 1879-3452. ; 33:11, s. 1461-1469
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Abstract
Ämnesord
Stäng
- High temperature fatigue crack growth in Inconel 718 has been studied at the temperatures 450 degrees C, 500 degrees C, 550 degrees C and 650 degrees C. The tests were conducted both without hold times and with hold times of different lengths and with a mix of both. Focus has been on quantifying the effect the hold time has upon the crack growth rate and how much it damages the material. Furthermore, it has been investigated how this damage influences the actual cracking behavior, i.e. where in the loading cycle the damage contributes most to the crack growth. This damage is related to the concept of a damaged zone in front of the crack tip. The size of the damaged zone has been derived from the tests and a microscopy study to confirm the findings has also been carried out. It is found that the concept of a damaged zone can be a successful explanatory model for the observed crack growth behavior under high temperature hold time.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
Nyckelord
- Nickel-base superalloys
- Fatigue crack propagation
- Inconel 718
- Hold times
- Grain boundary embrittlement
- TECHNOLOGY
- TEKNIKVETENSKAP
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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