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Unique material compositions obtained by Electron beam melting of blended powders
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för kvalitets- och maskinteknik. (SportsTech Research Centre)ORCID-id: 0000-0003-2964-9500
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för kvalitets- och maskinteknik. (SportsTech Research Centre)ORCID-id: 0000-0001-5954-5898
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för kvalitets- och maskinteknik. (SportsTech Research Centre)
Mittuniversitetet, Fakulteten för naturvetenskap, teknik och medier, Avdelningen för kvalitets- och maskinteknik. (SportsTech Research Centre)
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2018 (engelsk)Inngår i: Euro PM2018 Proceedings, European Powder Metallurgy Association, EPMA , 2018Konferansepaper, Publicerat paper (Fagfellevurdert)
Abstract [en]

Today powder bed fusion based (PBF) additive manufacturing (AM) methods in metallic materials mainly employ pre-alloyed precursor powders. It was even somehow assumed that in situ alloying of the blended powders will not be effective and such PBF processing will not yield any valuable materials. Recent studies carried out both for laser- and electron beam- based PBF have demonstrated possibilities of using precursors blended from both elemental and alloyed powders. We also demonstrate that composites and alloys indeed can be manufactured from a range of different pre-blended powders with Electron Beam Melting (EBM). It is also possible achieving both composites and alloys by design in different parts of the manufactured components by varying the beam energy deposition strategy. Using sequentially fed precursor powders together with a new powder delivery system also allows manufacturing of the functionally graded materials with gradual composition variation. Blended powder precursors and sequential powder feeding should provide opportunities of manufacturing components with changing composition and material properties in a single manufacturing process. It makes possible modern industrial manufacturing of materials similar to Damascus steels, and other composites and composite-like materials in combinations with alloyed and gradient sections by choice in different parts of components.  

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European Powder Metallurgy Association, EPMA , 2018.
Emneord [en]
powder bed, additive manufacturing, electron beam melting, new materials, powder belnds, composite materials
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Identifikatorer
URN: urn:nbn:se:miun:diva-35137Scopus ID: 2-s2.0-85084163546ISBN: 978-1-899072-50-7 (digital)OAI: oai:DiVA.org:miun-35137DiVA, id: diva2:1269296
Konferanse
Euro PM2018 Congress & Exhibition, Bilbao, Spain, 14-18 October, 2018
Tilgjengelig fra: 2018-12-10 Laget: 2018-12-10 Sist oppdatert: 2020-10-14bibliografisk kontrollert

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Scopushttps://www.europm2018.com/

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Koptioug, AndreiRännar, Lars-ErikBotero Vega, Carlos AlbertoBäckström, Mikael

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Koptioug, AndreiRännar, Lars-ErikBotero Vega, Carlos AlbertoBäckström, Mikael
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Totalt: 367 treff
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