Titre :

Modelling the formation of detrimental phases in cemented carbides

Auteur(s) :

Lamelas, Victor [Auteur]
KTH Royal Institute of Technology [Stockholm] [KTH]
Bonvalet Rolland, Manon [Auteur]
Unité Matériaux et Transformations - UMR 8207 [UMET]
Walbrühl, Martin [Auteur]
Borgenstam, Annika [Auteur]
KTH Royal Institute of Technology [Stockholm] [KTH]

Titre de la revue :

Materials & Design

Numéro :

228

Date de publication :

2023-03-13

ISSN :

0261-3069

Mot(s)-clé(s) en anglais :

ICME
Cemented carbides
Eta-carbides
Continuous cooling
Modeling

Discipline(s) HAL :

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

Résumé en anglais : [en]

Integrated Computational Materials Engineering (ICME) has proved to be an efficient tool for understanding the process-structure–property relationships and helping us to design materials. For instance, in cemented carbides ...
Lire la suite >Integrated Computational Materials Engineering (ICME) has proved to be an efficient tool for understanding the process-structure–property relationships and helping us to design materials. For instance, in cemented carbides manufacturing, one of the most critical parameters is the C-window. It is defined as the C content range for which phases detrimental to the mechanical properties are avoided. This processing window has been traditionally defined using applied thermodynamics methods. However, the deviation between equilibrium calculations and real manufacturing conditions requires big additional empirical efforts to precisely define the C-window. In this work, an ICME-based approach is proposed to redefine the processability limits of cemented carbides taking the cooling rate and the material’s initial powder size into consideration. The method relies on the interactive coupling of several adapted models and tools, to not only set the processability boundaries, but also to study the complex mechanisms interplay happening along microstructural evolution. A better understanding of these underlaying mechanisms leads to new inputs that can be used in the design of cemented carbides. In this regard, it is observed that faster cooling rates or coarser WC grades could be effectively used to prevent nucleation of the detrimental phases enlarging the C-window towards lower C contents.Lire moins >

Langue :

Anglais

Comité de lecture :

Oui

Audience :

Internationale

Vulgarisation :

Non

Établissement(s) :

Université de Lille
CNRS
INRAE
ENSCL

Collections :

• Unité Matériaux et Transformations (UMET) - UMR 8207

Équipe(s) de recherche :

Métallurgie Physique et Génie des Matériaux

Date de dépôt :

2023-03-21T14:56:31Z
2023-03-21T14:59:34Z
2023-03-23T08:19:25Z