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Precipitation Kinetics During Post-heat Treatment of an Additively Manufactured Ferritic Stainless Steel
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- Chou, Chia-Ying (författare)
- KTH,Materialvetenskap,KTH Royal Inst Technol, Dept Mat Sci & Engn, Brinellvagen 23, S-10044 Stockholm, Sweden
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- Karlsson, Dennis (författare)
- Uppsala universitet,Oorganisk kemi
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- Holländer Pettersson, Niklas (författare)
- KTH,Materialvetenskap,KTH Royal Inst Technol, Dept Mat Sci & Engn, Brinellvagen 23, S-10044 Stockholm, Sweden
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- Helander, T. (författare)
- Kanthal AB, Box 502, S-73427 Hallstahammar, Sweden
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- Harlin, P. (författare)
- Sandv Addit Mfg, S-81181 Sandviken, Sweden
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- Sahlberg, Martin, 1981- (författare)
- Uppsala universitet,Oorganisk kemi
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- Jansson, Ulf, 1960- (författare)
- Uppsala universitet,Oorganisk kemi
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- Odqvist, Joakim (författare)
- KTH,Materialvetenskap,KTH Royal Inst Technol, Dept Mat Sci & Engn, Brinellvagen 23, S-10044 Stockholm, Sweden
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- Lindwall, Greta (författare)
- KTH,Materialvetenskap,KTH Royal Inst Technol, Dept Mat Sci & Engn, Brinellvagen 23, S-10044 Stockholm, Sweden
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(creator_code:org_t)
- 2022-06-04
- 2022
- Engelska.
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Ingår i: Metallurgical and Materials Transactions. A. - : Springer Nature. - 1073-5623 .- 1543-1940. ; 53:8, s. 3073-3082
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https://doi.org/10.1...
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https://uu.diva-port... (primary) (Raw object)
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Abstract
Ämnesord
Stäng
- The microstructure response of laser-powder bed fusion (L-PBF)-processed ferritic stainless steel (AISI 441) during post-heat treatments is studied in detail. Focus is on the precipitation kinetics of the Nb-rich phases: Laves (Fe2Nb) and the cubic carbo-nitride (NbC), as well as the grain structure evolution. The evolution of the precipitates is characterized using scanning and transmission electron microscopy (SEM and TEM) and the experimental results are used to calibrate precipitation kinetics simulations using the precipitation module (TC-PRISMA) within the Thermo-Calc Software package. The calculations reproduce the main trend for both the mean radii for the Laves phase and the NbC, and the amount of Laves phase, as a function of temperature. The calibrated model can be used to optimize the post-heat treatment of additively manufactured ferritic stainless steel components and offer a creator tool for process and structure linkages in an integrated computational materials engineering (ICME) framework for alloy and process development of additively manufactured ferritic steels.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Metallurgi och metalliska material (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Metallurgy and Metallic Materials (hsv//eng)
Nyckelord
- Additives
- Binary alloys
- Ferrite
- Heat treatment
- Kinetics
- Niobium alloys
- Niobium compounds
- Scanning electron microscopy
- Ferritic stainless steel
- Laser powders
- Laves phasis
- Laves-phase
- Post heat-treatment
- Post-heat treatment
- Powder bed
- Precipitation kinetics
- Rich phase
- Structure evolution
- High resolution transmission electron microscopy
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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