Article (Scientific journals)
A Comparative Study on the Wear Performance and High-Temperature Oxidation of Co-Free Cermets and Hardmetals.
Biedma, Ángel; Sánchez, Gabriel; de Nicolás, María et al.
2024In Materials, 17 (14), p. 3615
Peer reviewed
 

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Keywords :
alternative hard materials; high-temperature oxidation; mechanisms; wear response; Alternative hard material; Commercial grade; Comparatives studies; Hard material; Hard metals; Oxidation of CO; Rupture strength; Wear behaviors; Wear performance; Materials Science (all); Condensed Matter Physics
Abstract :
[en] The present investigation addresses the mechanical properties, wear behaviour, and high-temperature oxidation of cermets and hardmetals based on either Ti(C,N) or WC and a metal binder based on Fe15Ni or Fe15Ni10Cr. This study also includes a commercial-grade WC-Co for comparative purposes. The production of these materials involved a powder metallurgy and sinter-HIP processing route under identical conditions. It is found that WC-based materials have superior mechanical properties, including hardness, fracture toughness, transversal rupture strength (TRS), and wear response, compared to Ti(C,N)-based materials. However, the latter show better oxidation behaviour than the former. Notably, WC-FeNi exhibits a higher hardness and TRS than the commercial-grade material (an increase of 7% and 9%, respectively). The difference in wear behaviour is due to the difference in wear mechanisms. In this regard, cermets wear through a tribolayer of Ti and Fe oxides, while hardmetals primarily wear through abrasion from ploughing. Thus, hardmetals exhibit a lower coefficient of friction (COF) and wear rate than cermets. Furthermore, Ti(C,N)-based materials form a protective layer of TiO2, which enhances their integrity and reduces mass gain. The addition of Cr to the FeNi binder only appears to have a clear effect on the TRS of the materials.
Disciplines :
Materials science & engineering
Author, co-author :
Biedma, Ángel ;  GTP-Department of Materials Science and Engineering, IAAB, Universidad Carlos III de Madrid, 28911 Leganés, Madrid, Spain
Sánchez, Gabriel ;  GTP-Department of Materials Science and Engineering, IAAB, Universidad Carlos III de Madrid, 28911 Leganés, Madrid, Spain
de Nicolás, María;  GTP-Department of Materials Science and Engineering, IAAB, Universidad Carlos III de Madrid, 28911 Leganés, Madrid, Spain ; Sustainable Powder Technologies-IMDEA Materials Institute, 28906 Getafe, Madrid, Spain
Bertalan, Claudio;  CERATIZIT Luxembourg S.à r.l., 8232 Mamer, Luxembourg
USELDINGER, Ralph  ;  University of Luxembourg ; CERATIZIT Luxembourg S.à r.l., 8232 Mamer, Luxembourg
Llanes, Luis ;  CIEFMA-Department of Materials Science and Engineering, Universitat Politècnica de Catalunya-BarcelonaTech, 08019 Barcelona, Catalunya, Spain ; Barcelona Research Center in Multiscale Science and Engineering, Universitat Politècnica de Catalunya-BarcelonaTech, 08019 Barcelona, Catalunya, Spain
Gordo, Elena ;  GTP-Department of Materials Science and Engineering, IAAB, Universidad Carlos III de Madrid, 28911 Leganés, Madrid, Spain
External co-authors :
no
Language :
English
Title :
A Comparative Study on the Wear Performance and High-Temperature Oxidation of Co-Free Cermets and Hardmetals.
Publication date :
22 July 2024
Journal title :
Materials
ISSN :
1996-1944
eISSN :
1996-1944
Publisher :
Multidisciplinary Digital Publishing Institute (MDPI), Switzerland
Volume :
17
Issue :
14
Pages :
3615
Peer reviewed :
Peer reviewed
Development Goals :
9. Industry, innovation and infrastructure
Funders :
Spanish Government
Funding text :
The present investigation received financial support from the Spanish Government under the project PID2019-106631GB-C41/C43.
Available on ORBilu :
since 26 December 2025

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