dc.contributor.author | Sayyar, Navid | |
dc.contributor.author | Hansen, Vidar Folke | |
dc.contributor.author | Tucho, Wakshum Mekonnen | |
dc.contributor.author | Minde, Mona Wetrhus | |
dc.date.accessioned | 2023-06-19T06:50:38Z | |
dc.date.available | 2023-06-19T06:50:38Z | |
dc.date.created | 2023-04-20T14:52:07Z | |
dc.date.issued | 2023-04 | |
dc.identifier.citation | Sayyar, N., Hansen, V., Tucho, W.M. & Minde, M.W. (2023) Directed laser deposition of super duplex stainless steel: Microstructure, texture evolution, and mechanical properties. Heliyon, 9 (4) | en_US |
dc.identifier.issn | 2405-8440 | |
dc.identifier.uri | https://hdl.handle.net/11250/3071947 | |
dc.description.abstract | Microstructure and texture evolution of directed-laser deposited super-duplex stainless-steel, in the as-received block, were characterized using light and electron microscopies and electron backscattered diffraction. Mechanical properties in different directions were studied. Local FCC-depleted and FCC-rich zones and extensive precipitation of oxides were detected at the matrix wherein the different types of reformed austenite were surrounded by the elongated coarse ferrite. A vertical gradient of austenite content, caused by overall change in cooling rate, generated a waning hardness distribution along the building direction. The texture of austenite across the different deposition layers was not as intense as that of the ferrite. A dominant <001> ⫽ND fibre, embedding strong Cube {001} <100>, was calculated for ferrite on the layer away from the bottom while the Goss {011} <100> appeared in the layer near the building substrate due to the considerable epitaxially developed grains. The less intensified multi-component texture of austenite at the layer near the substrate changed to <011> ⫽ND fibre adorned by Rotated-Goss and Goss components at the upper layers where an incomplete fibre {001} <uvw> with a major Rotated-Cube was also partially inherited from the parent phase. The inter-phase boundaries obeying Kurdjumov-Sachs orientation relationship were predominantly formed at all layers. A slight increase of Σ3 coincidence site lattice interfaces was observed in austenite across the build direction. The possible mechanical anisotropy was depressed due to complex and multi-component transformation texture of the austenite. The material showed brittleness corresponding to significantly high tensile strength and low impact toughness. | en_US |
dc.language.iso | eng | en_US |
dc.publisher | Elsevier Ltd. | en_US |
dc.rights | Navngivelse 4.0 Internasjonal | * |
dc.rights.uri | http://creativecommons.org/licenses/by/4.0/deed.no | * |
dc.title | Directed laser deposition of super duplex stainless steel: Microstructure, texture evolution, and mechanical properties | en_US |
dc.type | Peer reviewed | en_US |
dc.type | Journal article | en_US |
dc.description.version | publishedVersion | en_US |
dc.rights.holder | © 2023 The Author(s). | en_US |
dc.subject.nsi | VDP::Teknologi: 500 | en_US |
dc.source.pagenumber | 0 | en_US |
dc.source.volume | 9 | en_US |
dc.source.journal | Heliyon | en_US |
dc.source.issue | 4 | en_US |
dc.identifier.doi | 10.1016/j.heliyon.2023.e15144 | |
dc.identifier.cristin | 2142225 | |
dc.source.articlenumber | e15144 | en_US |
cristin.ispublished | true | |
cristin.fulltext | original | |
cristin.qualitycode | 1 | |