TY - GEN
T1 - Unique material composition obtained by electron beam melting of blended powders
AU - Koptyug, Andrey
AU - Rännar, Lars Erik
AU - Botero, Carlos
AU - Bäckström, Mikael
AU - Popov, Vladimir
N1 - Funding Information:
Authors sincerely acknowledge the help from Dr. Magnus Hummelgård, Universitetslektor, and the support of MILAB environment, Mid Sweden University. Part of the work is funded by Sweden-Norway Interreg program (20201562). The activities on EBM of MnAl magnetic materials were performed as a part of EU Horizon 2020 NMBP23-2015 project, research grant No 686056 (NOVAMAG).
Publisher Copyright:
© European Powder Metallurgy Association (EPMA).
Copyright:
Copyright 2020 Elsevier B.V., All rights reserved.
PY - 2020
Y1 - 2020
N2 - 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.
AB - 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.
UR - http://www.scopus.com/inward/record.url?scp=85084163546&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=85084163546&partnerID=8YFLogxK
M3 - Conference contribution
AN - SCOPUS:85084163546
T3 - Euro PM 2018 Congress and Exhibition
BT - Euro PM 2018 Congress and Exhibition
PB - European Powder Metallurgy Association (EPMA)
T2 - European Powder Metallurgy Congress and Exhibition, Euro PM 2018
Y2 - 14 October 2018 through 18 October 2018
ER -