Titre :

In situ transformations during SLM of an ultra-strong TiC reinforced Ti composite

Auteur(s) :

Dadbakhsh, Sasan [Auteur]
Catholic University of Leuven = Katholieke Universiteit Leuven [KU Leuven]
KTH Royal Institute of Technology [Stockholm] [KTH]
Mertens, Raya [Auteur]
Catholic University of Leuven = Katholieke Universiteit Leuven [KU Leuven]
Vanmeensel, Kim [Auteur]
Catholic University of Leuven = Katholieke Universiteit Leuven [KU Leuven]
Ji, Gang [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Kruth, Jean-Pierre [Auteur]
Catholic University of Leuven = Katholieke Universiteit Leuven [KU Leuven]

Titre de la revue :

Scientific Reports

Nom court de la revue :

Sci Rep

Numéro :

10

Éditeur :

Springer Science and Business Media LLC

Date de publication :

2020-06-29

ISSN :

2045-2322

Discipline(s) HAL :

Physique [physics]/Matière Condensée [cond-mat]/Science des matériaux [cond-mat.mtrl-sci]
Chimie/Matériaux

Résumé en anglais : [en]

This work demonstrates a successful in situ method capable of producing an ultra-strong novel Ti composite without aluminium and vanadium. In this method, selective laser melting is used to conduct in situ alloying and ...
Lire la suite >This work demonstrates a successful in situ method capable of producing an ultra-strong novel Ti composite without aluminium and vanadium. In this method, selective laser melting is used to conduct in situ alloying and reinforcing of a Ti/10.5 wt% Mo2C powder mixture. It is shown that this leads to a metastable β-Ti matrix homogeneously reinforced by high aspect ratio, 50–200 nm wide and up to several micrometre long TiC whiskers. The transformations of the phases are controlled by decomposition, dissolution, diffusion, and reformation of constituents. The whisker morphology of in situ formed TiC particles is associated with directional crystal growth along the TiC<110> direction. The developed TiC reinforced β-Ti alloy combines a hardness over 500 HV, a Young’s modulus of 126 GPa, and an ultimate compressive strength of 1642 MPa. Improving the ductility of this composite is the subject of another work.Lire moins >

Langue :

Anglais

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRA
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Métallurgie Physique et Génie des Matériaux

Date de dépôt :

2020-06-30T07:08:02Z
2020-08-26T07:47:31Z