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Microstructural Evo...
Microstructural Evolution During High Temperature Dwell-fatigue of Austenitic Stainless Steels
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- Wärner, Hugo, 1988- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Xu, Jinghao (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Chai, Guocai, 1956- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten,Sandvik Materials Technology, Sandviken
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- Moverare, Johan, 1973- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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- Calmunger, Mattias, 1986- (författare)
- Linköpings universitet,Konstruktionsmaterial,Tekniska fakulteten
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(creator_code:org_t)
- Elsevier, 2021
- 2021
- Engelska.
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Ingår i: International Journal of Fatigue. - : Elsevier. - 0142-1123 .- 1879-3452. ; 143
- Relaterad länk:
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https://liu.diva-por... (primary) (Raw object)
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https://doi.org/10.1...
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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
- Microstructural evolution related to the mechanical response from isothermal dwell-fatigue testing at 700 °C of two austenitic steels, Esshete 1250 and Sanicro 25, is reported. Coherent Cu-precipitates and incoherent Nb-carbides were found to impede dislocation motion, increase hardening and improving the high temperature properties of Sanicro 25. Sparsely placed intergranular Cr- and Nb-carbides made Esshete 1250 susceptible to creep damage and intergranular crack propagation, mainly from interaction of the carbides and fatigue induced slip bands. Dynamic recrystallization of the plastic zone at the crack tip appeared to affect crack propagation of Sanicro 25 by providing an energetically privileged path.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- creep-fatiuge interaction
- high temperature austenitic alloys
- high-resolution microscopy
- dynamic recrystallization of crack tip plastic zone
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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