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Publikationer (10 of 73) Visa alla publikationer
Hosseini, V., Thuvander, M., Lindgren, K., Oliver, J., Folkeson, N., Gonzalez, D., . . . Karlsson, L. (2023). Influence of Fabrication Route and Copper Content on Nature and Kinetics of 475 °C- Embrittlement in Cu-Containing Super Duplex Stainless Steels. Steel Research International, 4, 1-12, Article ID 2200978.
Öppna denna publikation i ny flik eller fönster >>Influence of Fabrication Route and Copper Content on Nature and Kinetics of 475 °C- Embrittlement in Cu-Containing Super Duplex Stainless Steels
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2023 (Engelska)Ingår i: Steel Research International, ISSN 1611-3683, E-ISSN 1869-344X, Vol. 4, s. 1-12, artikel-id 2200978Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

The influence of hot-rolling, hot isostatic pressing (HIP), welding, as well as copper content on 475 °C-embrittlement is studied in super duplex stainless steels. The as-received samples are solution annealed and quenched. Then, to study the kinetics and nature of phase transformations during fabrication, the samples are aged for a very short duration of 5 min at 475 °C. Atom probe tomography results reveal that the processes involving more plastic deformation such as hot rolling and HIP accelerate chromium and iron phase separation and cause precipitation of copper-rich particles (CRPs) in ferrite, resulting in significant toughness loss. In contrast, the weld does not show a high level of chromium and iron phase separation or CRPs precipitation, preserving its toughness after the short aging. The experiment and the inverse interdiffusion calculations reveal that raising the copper content slow down chromium and iron phase separation but significantly increase the CRP number density and decrease the toughness of the HIPed material. Precipitation simulation of CPRs show that the model must be modified based on each processing condition. It is concluded that hot rolling and HIP accelerate 475 °C-embrittlement, which cannot be prevented by raising the copper content.

Nyckelord
Cu-rich particle precipitation, Fe and Cr phase separation, simulations, super duplex stainless steels, 475 °C- embrittlement
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik
Forskningsämne
Produktionsteknik
Identifikatorer
urn:nbn:se:hv:diva-20888 (URN)10.1002/srin.202200978 (DOI)001069592700001 ()2-s2.0-85171449212 (Scopus ID)
Forskningsfinansiär
KK-stiftelsen, ALWAYS project
Tillgänglig från: 2023-12-28 Skapad: 2023-12-28 Senast uppdaterad: 2024-03-15Bibliografiskt granskad
Valiente Bermejo, M. A., Magniez, L., Jonasson, A., Selin, S., Frodigh, M., Hurtig, K., . . . Karlsson, L. (2022). Exposure of FeCrAl Overlay Welds on Superheater Tubes: Influence of Local Environment on Degradation. Journal of Failure Analysis and Prevention, 22(1), 400-408
Öppna denna publikation i ny flik eller fönster >>Exposure of FeCrAl Overlay Welds on Superheater Tubes: Influence of Local Environment on Degradation
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2022 (Engelska)Ingår i: Journal of Failure Analysis and Prevention, ISSN 1547-7029, E-ISSN 1864-1245, Vol. 22, nr 1, s. 400-408Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Two experimental FeCrAl alloy overlay welds on tube shields were exposed in the superheater of a full-size waste fired boiler for 6 months. The tube shields were in different tube lines and positions within the superheater chamber to investigate possible heterogeneities in the exposure environment. The visual inspection of the exposed tube shields and the corrosion-erosion rates calculated from the analysis of cross-sections showed that the mid-length roof location experienced the most aggressive environment. The compositional differences between the two experimental alloys were not found to be determinant in their performance under these specific exposure conditions. It was concluded that erosion had a decisive influence on the results. The identification of local differences within the superheater chamber is important when deciding on the material selection for the different areas and locations to be protected. The output of this study is therefore interesting for further design consideration of superheaters as well as for future planning of exposures.

Ort, förlag, år, upplaga, sidor
Springer, 2022
Nyckelord
Boiler, Superheater, Overlay welding, FeCrAl alloys
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik
Forskningsämne
Produktionsteknik
Identifikatorer
urn:nbn:se:hv:diva-18080 (URN)10.1007/s11668-022-01337-5 (DOI)000742255500001 ()2-s2.0-85123084204 (Scopus ID)
Tillgänglig från: 2022-01-25 Skapad: 2022-01-25 Senast uppdaterad: 2024-04-12Bibliografiskt granskad
Baghdadchi, A., Hosseini, V., Valiente Bermejo, M. A., Axelsson, B., Harati, E., Högström, M. & Karlsson, L. (2022). Wire laser metal deposition of 22% Cr duplex stainless steel: as-deposited and heat-treated microstructure and mechanical properties. Journal of Materials Science, 57(21), 9556-9575
Öppna denna publikation i ny flik eller fönster >>Wire laser metal deposition of 22% Cr duplex stainless steel: as-deposited and heat-treated microstructure and mechanical properties
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2022 (Engelska)Ingår i: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 57, nr 21, s. 9556-9575Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Duplex stainless steel (DSS) blocks with dimensions of 150 × 70x30 mm3 were fabricated by Laser Metal Deposition with Wire (LMDw). Implementation of a programmable logic control system and the hot-wire technology provided a stable and consistent process producing high-quality and virtually defect-free deposits. Microstructure and mechanical properties were studied for as-deposited (AD) material and when heat-treated (HT) for 1 h at 1100 °C. The AD microstructure was inhomogeneous with highly ferritic areas with nitrides and austenitic regions with fine secondary austenite occurring in a periodic manner. Heat treatment produced a homogenized microstructure, free from nitrides and fine secondary austenite, with balanced ferrite and austenite fractions. Although some nitrogen was lost during LMDw, heat treatment or reheating by subsequent passes in AD allowed the formation of about 50% austenite. Mechanical properties fulfilled common requirements on strength and toughness in both as-deposited and heat-treated conditions achieving the highest strength in AD condition and best toughness and ductility in HT condition. Epitaxial ferrite growth, giving elongated grains along the build direction, resulted in somewhat higher toughness in both AD and HT conditions when cracks propagated perpendicular to the build direction. It was concluded that high-quality components can be produced by LMDw and that deposits can be used in either AD or HT conditions. The findings of this research provide valuable input for the fabrication of high-performance DSS AM components

Nyckelord
A-stable; Build direction; Defect-free; Heat treated condition; High quality; Hot wires; Laser metal deposition; Microstructures and mechanical properties; Programmable logic control system; Secondary austenite
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik Metallurgi och metalliska material
Forskningsämne
Produktionsteknik
Identifikatorer
urn:nbn:se:hv:diva-18106 (URN)10.1007/s10853-022-06878-6 (DOI)000744401200004 ()2-s2.0-85123120534 (Scopus ID)
Tillgänglig från: 2022-02-07 Skapad: 2022-02-07 Senast uppdaterad: 2024-04-12Bibliografiskt granskad
Hosseini, V., Cederberg, E., Hurtig, K. & Karlsson, L. (2021). A physical simulation technique for cleaner and more sustainable research in additive manufacturing. Journal of Cleaner Production, 285, Article ID 124910.
Öppna denna publikation i ny flik eller fönster >>A physical simulation technique for cleaner and more sustainable research in additive manufacturing
2021 (Engelska)Ingår i: Journal of Cleaner Production, ISSN 0959-6526, E-ISSN 1879-1786, Vol. 285, artikel-id 124910Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Additive manufacturing (AM) introduces a new domain for zero waste and cleaner production. Research for verification of materials in AM and effects of the process on the material behavior, however, demands a significant amount of materials, energy, and man-hours. The design of suitable physical simulation techniques that can duplicate complex AM thermal cycles without performing AM is therefore crucial for cleaner and more sustainable AM research. This paper aims at introducing a novel technique to reproduce AM thermal cycles in a controlled way on a small sample, thereby supporting sustainable alloy verification and cleaner research. In this technique, a stationary arc is applied to a disc-shaped sample mounted on a water-cooled chamber, where the arc and water provide rapid heating and cooling, respectively. In the present study, a super duplex stainless steel (SDSS) was used as the experimental alloy to simulate the evolution of microstructure and properties during wire-arc additive manufacturing. The experiment was performed using the stationary arc with the holding time of 5 s, applied 1, 5, or 15 times. The total processing time was only 450 s (7.5 min) for the 15 a.m. thermal cycles experiment. The SDSS showed a progressive increase in the austenite fraction at 600–1200 °C and the formation of detrimental sigma phase at 700–1000 °C, but a reduction of austenite fraction above 1300 °C. The results were in good agreement with the literature, verifying the applicability of the physical simulation technique for AM research. Calculations showed that using arc heat treatment as the initial step is 6–20 times more efficient in different respects (materials, energy, and man-hours) compared to wire arc additive manufacturing. Therefore, this methodology can be implemented to gain an understanding of materials in AM applications thereby eliminating the need for investments in additive manufacturing of a specific component. © 2020

Nyckelord
Additives; Austenite; Duplex stainless steel; Heat treatment; Industrial research; Investments; Microstructural evolution; Pollution control; Thermal cycling; Wire, Cleaner production; Experimental alloys; Microstructure and properties; Physical simulation; Specific component; Super duplex stainless steel; Total processing time; Water-cooled chambers, 3D printers
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik
Forskningsämne
Produktionsteknik
Identifikatorer
urn:nbn:se:hv:diva-16046 (URN)10.1016/j.jclepro.2020.124910 (DOI)000609482500014 ()2-s2.0-85095834411 (Scopus ID)
Tillgänglig från: 2020-11-22 Skapad: 2020-11-22 Senast uppdaterad: 2022-01-17Bibliografiskt granskad
Hosseini, V., Thuvander, M., Lindgren, K., Oliver, J., Folkeson, N., Gonzalez, D. & Karlsson, L. (2021). Fe and Cr phase separation in super and hyper duplex stainless steel plates and welds after very short aging times. Materials & design, 210, Article ID 110055.
Öppna denna publikation i ny flik eller fönster >>Fe and Cr phase separation in super and hyper duplex stainless steel plates and welds after very short aging times
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2021 (Engelska)Ingår i: Materials & design, ISSN 0264-1275, E-ISSN 1873-4197, Vol. 210, artikel-id 110055Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Fe and Cr phase separation in ferrite, causing 475°C-embrittlement, was studied after very short aging times in super duplex stainless steel (SDSS) and hyper duplex stainless steel (HDSS) plates and welds. Atom probe tomography showed that hot-rolled SDSS, experiencing significant metal working, had faster kinetics of phase separations compared to the SDSS and HDSS welds after 5 min aging at 475 °C. The surface of the 33-mm SDSS plate had faster Fe and Cr phase separation and larger toughness drop. A higher density of dislocations next to the austenite phase boundary in ferrite, detected by electron channeling contrast, can promote the phase separation at the surface of the plate with lower austenite spacing. The toughness dropped in HDSS welds after aging, but SDSS welds maintained their toughness. An inverse simulation method considering an initial sinusoidal nanometric Cr and Fe fluctuation showed that Ni increases the interdiffusion of Cr in the system, resulting a higher degree of phase separation in SDSS welds than the HDSS weld. Within the composition range of the studied SDSS and HDSS materials, the processing influences the Fe and Cr phase separation more than the variation in composition during short aging or typical fabrication times. 

Ort, förlag, år, upplaga, sidor
Elsevier Ltd, 2021
Nyckelord
Austenite; Duplex stainless steel; Ferrite; Hot rolled steel; Inverse problems; Phase separation; Probes; Spinodal decomposition; Welding; Welds, 475°C-embrittlement; Aging time; Atom-probe tomography; Duplex stainless; Duplex stainless steel welds; Spinodals; Stainless steel plate; Stainless steel welds; Superduplex stainless steels; Welding, hot rolling, Hot rolling
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik Metallurgi och metalliska material
Forskningsämne
Produktionsteknik
Identifikatorer
urn:nbn:se:hv:diva-17452 (URN)10.1016/j.matdes.2021.110055 (DOI)000704390100007 ()2-s2.0-85113279628 (Scopus ID)
Anmärkning

The author would like to acknowledge KK-Stiftelsen for funding of “ALWAYS project”

Tillgänglig från: 2021-10-18 Skapad: 2021-10-18 Senast uppdaterad: 2022-04-04
Baghdadchi, A., Hosseini, V. & Karlsson, L. (2021). Identification and quantification of martensite in ferritic-austenitic stainless steels and welds. Journal of Materials Research and Technology, 15, 3610-3621
Öppna denna publikation i ny flik eller fönster >>Identification and quantification of martensite in ferritic-austenitic stainless steels and welds
2021 (Engelska)Ingår i: Journal of Materials Research and Technology, ISSN 2238-7854, Vol. 15, s. 3610-3621Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

This paper aims at the phase identification and quantification in transformation induced plasticity duplex stainless steel (TDSS) base and weld metal containing ferrite, austenite, and martensite. Light optical microscopy (LOM) and electron backscatter diffraction (EBSD) analysis were employed to analyze phases. Samples were either mechanically or electrolytically polished to study the effect of the preparation technique. Mechanical polishing produced up to 26% strain-induced martensite. Electrolytic polishing with 150 g citric acid, 300 g distilled water, 600 mL H3PO4, and 450 mL H2SO4 resulted in martensite free surfaces, providing high-quality samples for EBSD analysis. Martensite identification was challenging both with LOM, due to the similar etching response of ferrite and martensite, and with EBSD, due to the similar lattice structures of ferrite and martensite. An optimized Beraha color etching procedure was developed that etched martensite distinctively. A novel step-by-step EBSD methodology was also introduced considering grain size and orientation, which successfully identified and quantified martensite as well as ferrite and austenite in the studied TDSS. Although here applied to a TDSS, the presented EBSD methodology is general and can, in combination with knowledge of the metallurgy of the specific material and with suitable adaption, be applied to a multitude of multiphase materials. It is also general in the sense that it can be used for base material and weld metals as well as additive manufactured materials.

Ort, förlag, år, upplaga, sidor
Elsevier Editora Ltda, 2021
Nyckelord
Duplex stainless steel, Mechanical polishing, Electrolytic polishing, Phase analysis, Martensite, Electron backscatter diffraction
Nationell ämneskategori
Metallurgi och metalliska material Annan materialteknik
Forskningsämne
Produktionsteknik
Identifikatorer
urn:nbn:se:hv:diva-17790 (URN)10.1016/j.jmrt.2021.09.153 (DOI)000712162500008 ()2-s2.0-85117073816 (Scopus ID)
Anmärkning

 This study received support from the EU-project H2020-MSCA-RISE-2018 Number 823786, i-Weld, and the Swedish Agency for Economic and Regional Growth through the European Union–European Development Fund

Tillgänglig från: 2021-12-22 Skapad: 2021-12-22 Senast uppdaterad: 2024-02-20
Valiente Bermejo, M. A., Thalavai Pandian, K., Axelsson, B., Harati, E., Kisielewicz, A. & Karlsson, L. (2021). Microstructure of laser metal deposited duplex stainless steel: Influence of shielding gas and heat treatment. Welding in the World, 65, 525-541
Öppna denna publikation i ny flik eller fönster >>Microstructure of laser metal deposited duplex stainless steel: Influence of shielding gas and heat treatment
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2021 (Engelska)Ingår i: Welding in the World, ISSN 0043-2288, E-ISSN 1878-6669, Vol. 65, s. 525-541Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

This research work is the first step in evaluating the feasibility of producing industrial components by using Laser Metal Deposition with duplex stainless steel Wire (LMDw). The influence of Ar and N2 shielding gases was investigated in terms of nitrogen loss and in the microstructure and austenite content of different deposited geometries. The evolution of the microstructure in the build-up direction of the Ar and N2-shielded blocks was compared in the heat-treated and as-deposited conditions. The susceptibility for oxygen pick-up in the LMDw deposits was also analyzed, and oxygen was found to be in the range of conventional gas-shielded weldments. Nitrogen loss occurred when Ar-shielding was used; however, the use of N2-shielding prevented nitrogen loss. Austenite content was nearly doubled by using N2-shielding instead of Ar-shielding. The heat treatment resulted in an increase of the austenite content and of the homogeneity in the microstructure regardless of the shielding gas used. The similarity in microstructure and the low spread in the phase balance for the as-deposited geometries is a sign of having achieved a stable and consistent LMDw process in order to proceed with the build-up of more complex geometries closer to industrial full-size components.

Ort, förlag, år, upplaga, sidor
Springer, 2021
Nyckelord
Duplex stainless steels, Additive manufacturing, Laser metal deposition, Directed energy deposition, Laser beam additive manufacturing
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik Metallurgi och metalliska material
Forskningsämne
Produktionsteknik
Identifikatorer
urn:nbn:se:hv:diva-16106 (URN)10.1007/s40194-020-01036-5 (DOI)000598987700002 ()2-s2.0-85097168175 (Scopus ID)
Forskningsfinansiär
KK-stiftelsen, 20170060
Tillgänglig från: 2020-12-10 Skapad: 2020-12-10 Senast uppdaterad: 2021-03-10Bibliografiskt granskad
Hosseini, V., Lindgren, K., Thuvander, M., Gonzalez, D., Oliver, J. & Karlsson, L. (2021). Nanoscale phase separations in as-fabricated thick super duplex stainless steels. Journal of Materials Science, 56(21), 12475-12485
Öppna denna publikation i ny flik eller fönster >>Nanoscale phase separations in as-fabricated thick super duplex stainless steels
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2021 (Engelska)Ingår i: Journal of Materials Science, ISSN 0022-2461, E-ISSN 1573-4803, Vol. 56, nr 21, s. 12475-12485Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Nanoscale phase separations, and effects of these, were studied for thick super duplex stainless steel products by atom probe tomography and mechanical testing. Although nanoscale phase separations typically occur during long-time service at intermediate temperatures (300-500 degrees C, our results show that slowly cooled products start to develop Fe and Cr separation and/or precipitation of Cu-rich particles already during fabrication. Copper significantly slowed down the kinetics at the expense of Cu-rich particle precipitation, where the high-copper material subjected to hot isostatic pressing (HIP), with Delta t(500-400) of 160 s and the low-copper hot-rolled plate with Delta t(500-400) of 2 s had the same level of Fe and Cr separation. The phase separations resulted in lower toughness and higher hardness of the HIP material than for hot-rolled plate. Therefore, both local cooling rate dependent and alloy composition governed variations of phase separations can be expected in as-fabricated condition.

Ort, förlag, år, upplaga, sidor
SPRINGER, 2021
Nyckelord
Nanoscale phase separations, effects
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik
Forskningsämne
Produktionsteknik
Identifikatorer
urn:nbn:se:hv:diva-17200 (URN)10.1007/s10853-021-06056-0 (DOI)000641219800006 ()2-s2.0-85104858814 (Scopus ID)
Tillgänglig från: 2021-12-16 Skapad: 2021-12-16 Senast uppdaterad: 2021-12-16
Hosseini, V., Hurtig, K., Gonzalez, D., Oliver, J., Folkeson, N., Thuvander, M., . . . Karlsson, L. (2021). Precipitation kinetics of Cu-rich particles in super duplex stainless steels. Journal of Materials Research and Technology, 15, 3951-3964
Öppna denna publikation i ny flik eller fönster >>Precipitation kinetics of Cu-rich particles in super duplex stainless steels
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2021 (Engelska)Ingår i: Journal of Materials Research and Technology, ISSN 2238-7854, Vol. 15, s. 3951-3964Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Complex precipitation behavior of Cu-rich particles (CRPs) was investigated and simulated in continuously cooled and quench-aged super duplex stainless steel. Atom probe tomography (APT) and scanning electron microscopy showed that slow cooling resulted in nonuniform multimodal CRP precipitation and spinodal decomposition, while in the fast cooled and quench-aged conditions, more uniform precipitation of CRPs with no visible spinodal decomposition was found. Depletion of Cu, Ni, and Mn was observed in the ferrite next to the CRPs during growth, but not during dissolution. Some evidence of Ostwald ripening was seen after slow cooling, but in the quench-aged condition, particle coalescence was observed. Large CRPs disappeared next to a ferrite–austenite phase boundary after slow cooling when Cu was depleted due to the diffusion to austenite as also predicted by moving boundary Dictra simulation. Comparing Cu depleted areas next to CRPs analyzed by APT and moving boundary Dictra simulation of CRP–ferrite showed that the effective Cu diffusion coefficient during the early-stage precipitation was about 300 times higher than the Cu diffusion coefficient in ferrite at 475 °C. Using the effective diffusion coefficient and a size-dependent interfacial energy equation, CRP size distribution was successfully predicted by the Langer–Schwartz model implemented in Thermo-Calc Prisma. Applying a short aging time and continuous cooling increased the hardness and decreased the toughness values compared to the solution annealed condition. A nonuniform distribution of Cu in ferrite, the duplex structure, and partitioning of alloying elements among different phases are factors making CRP precipitation in duplex stainless steels complex.

Ort, förlag, år, upplaga, sidor
Elsevier Editora Ltda, 2021
Nyckelord
Precipitation kinetics, Duplex stainless steels, Moving phase boundary simulation, Atom probe tomography
Nationell ämneskategori
Metallurgi och metalliska material
Identifikatorer
urn:nbn:se:hv:diva-17788 (URN)10.1016/j.jmrt.2021.10.032 (DOI)000712078600010 ()2-s2.0-85117610752 (Scopus ID)
Forskningsfinansiär
KK-stiftelsen
Tillgänglig från: 2021-12-21 Skapad: 2021-12-21 Senast uppdaterad: 2021-12-21
Baghdadchi, A., Hosseini, V., Hurtig, K. & Karlsson, L. (2021). Promoting austenite formation in laser welding of duplex stainless steel-impact of shielding gas and laser reheating. Welding in the World, 65, 499-511
Öppna denna publikation i ny flik eller fönster >>Promoting austenite formation in laser welding of duplex stainless steel-impact of shielding gas and laser reheating
2021 (Engelska)Ingår i: Welding in the World, ISSN 0043-2288, E-ISSN 1878-6669, Vol. 65, s. 499-511Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Avoiding low austenite fractions and nitride formation are major challenges in laser welding of duplex stainless steels (DSS). The present research aims at investigating efficient means of promoting austenite formation during autogenous laser welding of DSS without sacrificing productivity. In this study, effects of shielding gas and laser reheating were investigated in welding of 1.5-mm-thick FDX 27 (UNS S82031) DSS. Four conditions were investigated: Ar-shielded welding, N2-shielded welding, Ar-shielded welding followed by Ar-shielded laser reheating, and N2-shielded welding followed by N2-shielded laser reheating. Optical microscopy, thermodynamic calculations, and Gleeble heat treatment were performed to study the evolution of microstructure and chemical composition. The austenite fraction was 22% for Ar-shielded and 39% for N2-shielded as-welded conditions. Interestingly, laser reheating did not significantly affect the austenite fraction for Ar shielding, while the austenite fraction increased to 57% for N2-shielding. The amount of nitrides was lower in N2-shielded samples compared to in Ar-shielded samples. The same trends were also observed in the heat-affected zone. The nitrogen content of weld metals, evaluated from calculated equilibrium phase diagrams and austenite fractions after Gleeble equilibrating heat treatments at 1100 °C, was 0.16% for N2-shielded and 0.11% for Ar-shielded welds, confirming the importance of nitrogen for promoting the austenite formation during welding and especially reheating. Finally, it is recommended that combining welding with pure nitrogen as shielding gas and a laser reheating pass can significantly improve austenite formation and reduce nitride formation in DSS laser welds. © 2020, The Author(s).

Nyckelord
Austenite; Duplex stainless steel; Heat affected zone; Heat treatment; Industrial heating; Microstructural evolution; Nitrides; Nitrogen; Shielding; Welding, Austenite formation; Autogenous laser welding; Chemical compositions; Duplex stainless steel (DSS); Equilibrium phase diagrams; Nitride formation; Nitrogen content; Thermodynamic calculations, Argon lasers
Nationell ämneskategori
Bearbetnings-, yt- och fogningsteknik
Forskningsämne
Produktionsteknik
Identifikatorer
urn:nbn:se:hv:diva-16028 (URN)10.1007/s40194-020-01026-7 (DOI)000587932200001 ()2-s2.0-85095716448 (Scopus ID)
Forskningsfinansiär
EU, Europeiska forskningsrådet, H2020-MSCA-RISE-2018 Number 823786
Anmärkning

Open access funding provided by University West. James Oliver and Ravi Vishnu from the Outokumpu Stainless AB (Avesta, Sweden) are appreciatively acknowledged for their help and support. This study received great support from the EU-project H2020-MSCA-RISE-2018 Number 823786, i-Weld, and the Swedish Agency for Economic and Regional Growth through the European Union – European Development Fund.

Creative CommonsAttribution 4.0 International License

Tillgänglig från: 2020-11-16 Skapad: 2020-11-16 Senast uppdaterad: 2024-02-20Bibliografiskt granskad
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Identifikatorer
ORCID-id: ORCID iD iconorcid.org/0000-0001-8822-2705

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