Article (Scientific journals)
Thermal histories and microstructures in Direct Energy Deposition of a High Speed Steel thick deposit
Tomé Jardin, Ruben Antonio; Tchuindjang, Jérôme Tchoufack; Duchene, Laurent et al.
2019In Materials Letters, 236, p. 42-45
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Keywords :
Finite element analysis; Laser deposition; Powder processing; Solidification microstructure; Carbide
Abstract :
[en] The results of 2D Finite Element thermal simulations of Direct Energy Deposition of a High Speed Steel thick deposit explain the observed microstructural heterogeneities over the whole height of a 36-layer deposit. The Finite Element model is validated by the recorded substrate temperature and the melt pool depth of the last clad layer experimentally measured. The correlation between the computed thermal fields and the microstructures of three points of interest located at different depths within the deposit is carried out. The effect of both the melt superheating temperature and the thermal cyclic history on the carbides type, shape and size is discussed.
Disciplines :
Materials science & engineering
Author, co-author :
Tomé Jardin, Ruben Antonio ;  Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Tchuindjang, Jérôme Tchoufack  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Duchene, Laurent  ;  Université de Liège - ULiège > Département ArGEnCo > Analyse multi-échelles des matériaux et struct. du gén. civ.
Tran, Hoang Son ;  Université de Liège - ULiège > Département ArGEnCo > Département Argenco : Secteur MS2F
Hashemi, Seyedeh Neda ;  Université de Liège - ULiège > Département ArGEnCo > Département Argenco : Secteur MS2F
Carrus, Raoul
Mertens, Anne  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Habraken, Anne  ;  Université de Liège - ULiège > Département ArGEnCo > Département ArGEnCo
Language :
English
Title :
Thermal histories and microstructures in Direct Energy Deposition of a High Speed Steel thick deposit
Publication date :
01 February 2019
Journal title :
Materials Letters
ISSN :
0167-577X
eISSN :
1873-4979
Publisher :
Elsevier, Netherlands
Volume :
236
Pages :
42-45
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
Walloon Region [RW 11-1-7335 Recylclad]
FNRS F.R.S. [PDR T.0039.14 and position of AM Habraken]
FEDER [IAWATHA]
CAREM ULiège
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