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Micro heterogeous f...
Micro heterogeous fatigue behaviour of duplex stainless steel during cyclic loading
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- Chai, G. (författare)
- Sandvik Group AB
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- Lillbacka, Robert, 1974 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Lin Peng, R. (författare)
- Linköpings universitet,Linköping University
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(creator_code:org_t)
- 2010
- 2010
- Engelska.
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Ingår i: 18th European Conference on Fracture: Fracture of Materials and Structures from Micro to Macro Scale, ECF 2010; Dresden; Germany; 30 August 2010 through 3 September 2010.
- Relaterad länk:
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https://research.cha...
Abstract
Ämnesord
Stäng
- Two phase metals can suffer from non-uniform load sharing between the phases or stress heterogeneity on the micro-scale, elastic/plastic anisotropy and other mechanical interactions on the scale of grain size during cyclic loading. These effects strongly influence the fatigue damage and crack initiation behaviour of the two phase metals. In this paper, the fatigue damage and crack initiation behaviours of two austenitic-ferritic duplex stainless steels, UNS S32750 and UNS S32906, have been studied by both experimental investigations such as low cycle fatigue tests, SEM and TEM study, and X-ray and neutron diffraction and simulation using multi-scale material modelling. It has been found that the material damage and crack initiation in these two duplex stainless steels during cyclic loading occur mainly in the ferritic phase that is the weakest phase if the deformation hardening is considered.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering (hsv//eng)
Nyckelord
- Multi-scale material modeling
- Duplex stainless steels
- Low cycle fatigue
- Fatigue crack initiation
- Fatigue damage
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)