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Microstructural evo...
Microstructural evolution of welded stainless steels on integrated effect of thermal aging and low flux irradiation
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- Bjurman, Martin (författare)
- KTH,Studsvik Nuclear AB, Sweden
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- Lindgren, Kristina, 1989 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Thuvander, Mattias, 1968 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Ekström, Peter (författare)
- Strålsäkerhetsmyndigheten (SSM),The Swedish Radiation Safety authority (SSM)
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- Efsing, Pål, 1965- (författare)
- KTH,Hållfasthetslära (Inst.)
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(creator_code:org_t)
- Springer International Publishing, 2019
- 2019
- Engelska.
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Ingår i: Minerals, Metals and Materials Series. - : Springer International Publishing. - 2367-1696 .- 2367-1181. ; Part F11, s. 703-710
- Relaterad länk:
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https://research.cha...
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https://doi.org/10.1...
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https://research.cha...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- The combined effect of thermal aging and irradiation on cast and welded stainless steel solidification structures is not sufficiently investigated. From theory and consecutive aging and irradiation experiments, the effect of simultaneous low rate irradiation and thermal aging is expected to accelerate and modify the aging processes of the ferrite phase. Here, a detailed analysis of long-term aged material at very low fast neutron flux at LWR operating temperatures using Atom Probe Tomography is presented. Samples of weld material from various positions in the core barrel of the Zorita PWR are examined. The welds have been exposed to 280–285 °C for 38 years at three different neutron fluxes between 1 × 10 −5 and 7 × 10 −7 dpa/h to a total dose of 0.15–2 dpa. The aging of the ferrite phase occurs by spinodal decomposition, clustering and precipitation of e.g. G-phase. These phenomena are characterized and quantitatively analyzed in order to understand the effect of flux in combination with thermal aging.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Bearbetnings-, yt- och fogningsteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Manufacturing, Surface and Joining Technology (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Annan materialteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Other Materials Engineering (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Spinodal decomposition
- Irradiation
- Weld ferrite
- Thermal aging
- Stainless steel
Publikations- och innehållstyp
- kon (ämneskategori)
- ref (ämneskategori)
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