Article (Scientific journals)
MC carbides in Fe-based matrices: exploring a viable pathway for reducing tungsten dependence
Maurizi Enrici, Tommaso; Dedry, Olivier; Scappin, Fabio et al.
2025 • In Diamante : Applicazioni and Tecnologia, 121, p. 29-36
Editorial reviewed
 

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Keywords :
Carbides; Diamond Tools; Sintering; Wear
Abstract :
[en] This study investigates the wear behaviour of novel Fe-based composites reinforced with MC carbides, developed as part of a WC substitution strategy. Four sintered samples were tested using pin-on-disc tribometry against Al2O3 counterbody under dry conditions. Results show that WC-Co reinforcements provide the lowest worn volume and the most stable friction behaviour, due to effective tribolayer formation. In contrast, the MC-reinforced sample exhibited some tribochemical activity and a good bond between the reinforcements and the matrix, but suffered from a brittle microstructure and a higher wear rate. Ongoing optimisation of raw materials and processing aims to improve the performance ofMC-based systems whilemaintaining their beneficial reinforcement effects.
[it] Questo studio analizza il comportamento all’usura di nuovi compositi a base ferro rinforzati con carburi di tipo MC, sviluppati nell’ambito di una strategia di sostituzione del WC. Quattro campioni sinterizzati sono stati testati tramite test pinon-disc contro un controcorpo in Al2O3 in condizioni a secco. I risultati mostrano che i rinforzi in WC-Co portano al volume di usura più basso e al comportamento d’attrito più stabile, grazie all’efficace formazione di un tribostrato protettivo. Al contrario, il campione rinforzato conMC hamostrato una certa attività tribochimica e un buon legame tra i rinforzi e la matrice, ma ha sofferto di una microstruttura fragile e di un più elevato tasso di usura. L’ottimizzazione in corso delle materie prime e dei processimira amigliorare le prestazioni dei sistemi a base di MC, mantenendone al contempo gli effetti di rinforzo benefici.
Research Center/Unit :
CAREM - Center for Applied Research and Education in Microscopy
Disciplines :
Materials science & engineering
Engineering, computing & technology: Multidisciplinary, general & others
Author, co-author :
Maurizi Enrici, Tommaso;  Abrade Iride Spa
Dedry, Olivier  ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Metallic materials for additive manufacturing
Scappin, Fabio;  Abrade Iride Spa
Mertens, Anne  ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Metallic materials for additive manufacturing
Tchuindjang, Jérôme Tchoufack  ;  Université de Liège - ULiège > Aérospatiale et Mécanique (A&M) ; Université de Liège - ULiège > Département d'aérospatiale et mécanique > Metallic materials for additive manufacturing
Language :
English
Title :
MC carbides in Fe-based matrices: exploring a viable pathway for reducing tungsten dependence
Original title :
[it] Carburi di tipo MC in matrici a base di ferro: esplorare un percorso sostenibile per ridurre la dipendenza dal tungsteno
Publication date :
September 2025
Journal title :
Diamante : Applicazioni and Tecnologia
Special issue title :
Diamante A & T
Volume :
121
Pages :
29-36
Peer reviewed :
Editorial reviewed
Funders :
ULiège - Université de Liège
Funding text :
Crédit classique
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since 15 June 2026

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