Erosion Wear Behavior of TiCN-Ni Cermets Containing Secondary Carbides (WC/NbC/TaC)

The present communication reports the results of a first set of erosion wear experiments, conducted on TiCN–20 wt% Ni cermets containing different secondary carbides (WC, NbC, and TaC). The cermets are eroded by SiC particles (66 μm size) with a constant mass flow rate (2.33 g/s) at different angles...

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Bibliographic Details
Published in:Journal of the American Ceramic Society 2006-12, Vol.89 (12), p.3827-3831
Main Authors: Manoj Kumar, B. V., Basu, Bikramjit, Kang, S., Ramkumar, J.
Format: Article
Language:English
Subjects:
Abrasives and cutting tools
Applied sciences
Building materials. Ceramics. Glasses
Carbides
Ceramic industries
Ceramics
Cermets
Cermets, ceramic and refractory composites
Chemical industry and chemicals
Composite materials
Cross-disciplinary physics: materials science
rheology
Erosion
Erosion rate
Exact sciences and technology
Materials science
Metals
Nickel
Other materials
Physics
Silicon carbide
Specific materials
Technical ceramics
Wear
Wear resistance
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Summary:The present communication reports the results of a first set of erosion wear experiments, conducted on TiCN–20 wt% Ni cermets containing different secondary carbides (WC, NbC, and TaC). The cermets are eroded by SiC particles (66 μm size) with a constant mass flow rate (2.33 g/s) at different angles of impingement (30°, 60°, 90°) on an in‐house fabricated erosion wear tester. An important experimental observation is that the investigated cermets exhibit behavior similar to ceramics, as evident from the systematic increase in erosion wear rate with impact angles. Among all investigated cermets, WC‐added TiCN–20 wt% Ni cermets exhibit superior erosion wear resistance. SEM investigations of eroded surfaces (normal incidence) reveal grain pullout with intergranular fracture as the dominant material removal process.
ISSN:0002-7820
1551-2916
DOI:10.1111/j.1551-2916.2006.01277.x