Article (Scientific journals)
Laser cladding of TiC reinforced 316L stainless steel composites: Feedstock powder preparation and microstructural evaluation
Ertugrul, Onur; Maurizi-Enrici, Tommaso; Paydas, Hakan et al.
2020In Powder Technology, 375, p. 384-396
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Keywords :
Laser cladding; Microstructure; Titanium carbide; High-energy ball milling; Stainless steel composite
Abstract :
[en] Laser cladding was used to fabricate 316L/TiC composite coatings after optimizing the feedstock powder morphology. Firstly, the influences of ball-to-powder ratio (BPR) and milling duration on the morphology were investigated. The BPR of 1:1 and 2h of milling was sufficient to attach considerable amount of TiC particles onto 316L particles. Then, the microstructure and hardness behaviors of 15 vol% TiC reinforced 316L coatings were examined. Partial or total dissolution of the original TiC powders led to the formation of a reinforced austenitic microstructure with a hardness increase of 100 HV. This increase is due to a grain refinement effect of the TiC during solidification and the presence of new solidification carbides. Partially dissolved and primary MC globular carbides are well-distributed in the matrix together with few larger MC globular carbides. Furthermore, MC coral-like pseudo-primary carbides and MC branched eutectic carbides are observed inside the cells and in intercellular spaces, respectively.
Research center :
MMS
Disciplines :
Materials science & engineering
Author, co-author :
Ertugrul, Onur;  Izmir Katip Celebi University > Department of Materials Science and Engineering
Maurizi-Enrici, Tommaso  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Paydas, Hakan ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Metallic materials for additive manufacturing
Saggionetto, Enrico  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Boschini, Frédéric ;  Université de Liège - ULiège > Plateforme APTIS
Mertens, Anne  ;  Université de Liège - ULiège > Département d'aérospatiale et mécanique > Science des matériaux métalliques
Language :
English
Title :
Laser cladding of TiC reinforced 316L stainless steel composites: Feedstock powder preparation and microstructural evaluation
Publication date :
20 September 2020
Journal title :
Powder Technology
ISSN :
0032-5910
eISSN :
1873-328X
Publisher :
Elsevier, Netherlands
Volume :
375
Pages :
384-396
Peer reviewed :
Peer Reviewed verified by ORBi
Name of the research project :
FEDER “Iawatha”
Funders :
FEDER - Fonds Européen de Développement Régional [BE]
Available on ORBi :
since 01 August 2020

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