Unpublished conference/Abstract (Scientific congresses and symposiums)
Stainless steel 316L + WC composite coating produced by laser cladding: on the role of particles dissolution and interfacial reactions
Maurizi-Enrici, Tommaso; Mario, Daniele; Mancini, Elena et al.
2019Euromat 2019
Peer reviewed
 

Files


Full Text
Euromat2019_Maurizi et al.pdf
Author postprint (4 MB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Metal matrix composite; Laser Cladding; Additive Manufacturing; Stainless steel; Tungsten carbide; Indentation; Wear; Microstructure; Thermal analysis
Abstract :
[en] Austenitic stainless steels are widely used due to their high corrosion resistance but their relatively poor tribological properties still limit their fields of application. Reinforcing locally the surface of SS316L in areas exposed to sliding contact thus appears as an interesting solution, combining the properties of the matrix with the benefits of harder ceramic materials. As reinforcement, WC is a good candidate due to its hardness and its high melting temperature (2600°C) and the additive process known as laser cladding is well suited for the local deposition of SS316L + WC composite coatings. In this process, a mixture of powders is fed into a focused laser beam, (partially) melted and projected unto a substrate. Laser cladding is characterized by ultra-fast cooling rates during the solidification stage and the subsequent solid state transformations, thus giving rise to out-of-equilibrium phases. When processing a mixture of SS316L and WC powders, in particular, partial dissolution of WC particles in the SS316L melt pool is observed, followed by the precipitation of new reaction products [1]. This study investigates the microstructure of a SS316L – 20 vol% WC composite, focusing on the identification of out-of-equilibrium reaction products resulting from the partial dissolution of the WC particles during laser cladding. To this aim, SEM+EDS observations are combined with electron backscatter diffraction (EBSD) analysis (see figure). Differential thermal analysis (DTA) is also used both on raw powders and on laser clad deposits, to help gain more insights into the solidification and precipitation sequence of the different phases. 1. Mertens, A.; Lecomte-Beckers J. On the Role of Interfacial Reactions, Dissolution and Secondary Precipitation During the Laser Additive Manufacturing of Metal Matrix Composites : A Review. In: New Trends in 3D Printing; 2016:187.
Disciplines :
Materials science & engineering
Author, co-author :
Maurizi-Enrici, Tommaso  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Mario, Daniele;  University of Padua
Mancini, Elena;  University of Padua
Dedry, Olivier  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Tchuindjang, Jérôme Tchoufack  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Mertens, Anne  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Language :
English
Title :
Stainless steel 316L + WC composite coating produced by laser cladding: on the role of particles dissolution and interfacial reactions
Publication date :
05 September 2019
Event name :
Euromat 2019
Event place :
Stockholm, Sweden
Event date :
du 1 au 5 septembre 2019
Audience :
International
Peer reviewed :
Peer reviewed
Name of the research project :
Iawatha
Funders :
FEDER - Fonds Européen de Développement Régional
Available on ORBi :
since 05 September 2019

Statistics


Number of views
193 (35 by ULiège)
Number of downloads
16 (16 by ULiège)

Bibliography


Similar publications



Contact ORBi