Erosion of ceramics and cermets

D’Errico, Giampaolo E.; Bugliosi, S.; Cuppini, D.

doi:10.1016/s0924-0136(01)00986-4

Cited by 11 publications

(8 citation statements)

References 4 publications

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“…In the present investigation, a mass flow rate of 2.33±0.5 g/min was maintained for all experiments. It should be noted that a higher stand‐off distance of more than 5 mm is commonly used in different erosion setups, as reported in the earlier literature 13,18 . In the present case, a lower stand‐off distance (nozzle to specimen surface) of 1 mm is expected to cause concentrated impingement of erodent, i.e., severe erosion damage to the cermet surface can be studied.…”

Section: Methodsmentioning

confidence: 59%

“…In the present case, a lower stand‐off distance (nozzle to specimen surface) of 1 mm is expected to cause concentrated impingement of erodent, i.e., severe erosion damage to the cermet surface can be studied. Based on earlier investigations 18 as well as our preliminary experiments, it was found that the impinging time of 120 s is sufficient for obtaining a steady‐state erosion rate for the TiCN–Ni cermets under the investigated experimental conditions. The weight loss was measured after each experiment, and the erosion wear rate (mm 3 /kg) in terms of the ratio of volume of material removed to the mass of the erodent.…”

Section: Methodsmentioning

confidence: 68%

“…In another interesting work, the hardness was not observed as a major factor in influencing erosion wear resistance of TiC‐based cermets; instead, the fracture resistance and modulus of elasticity were observed as important material properties affecting the erosive wear resistance 15,16 . However, D'Errico et al 17,18 . reported considerable influence of hardness on erosive wear of TiCN–Co–Ni–TaC/WC/NbC/MO 2 C cermets at both oblique and orthogonal impacts.…”

Section: Introductionmentioning

confidence: 96%

“…Because of potential tribological applications of cermet materials, research efforts have been invested to evaluate and understand the erosive wear properties of TiC‐, WC‐, Cr 3 C 2 ‐based cermets 10–18 . The erosion wear mechanisms of WC–Co and TiC‐based cermets are reported to be influenced by a combination of deformation and brittle fracture with more dominance of fracture behavior 11 .…”

Section: Introductionmentioning

confidence: 99%

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

Kumar

Basu

Kang

et al. 2006

Journal of the American Ceramic Society

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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 lm size) with a constant mass flow rate (2.33 g/s) at different angles of impingement (301, 601, 901) 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.

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Section: Methodsmentioning

confidence: 59%

Section: Methodsmentioning

confidence: 68%

Section: Introductionmentioning

confidence: 96%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

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

Kumar

Basu

Kang

et al. 2006

Journal of the American Ceramic Society

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“…Solid-particle erosion of cermets has been considered in [ 33 , 34 , 37 , 48 , 58 , 60 , 64 , 65 , 66 , 67 , 68 , 69 , 70 , 71 , 72 , 73 , 74 , 75 , 76 , 77 , 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 , 86 , 87 ]. Composition, hot consolidation conditions, structure (grain size of ceramic phase), mechanical properties and testing conditions of solid-particle erosion are summarized in Table 3 .…”

Section: Erosive Wearmentioning

confidence: 99%

Abrasion and Erosion Resistance of Cermets: A Review

2021

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WC-based hardmetals are employed widely as wear-resistant ceramic–metal composites for tools and wear parts. Raw materials supply, environmental concerns and some limitations of hardmetals have directed efforts toward development of alternative wear-resistant composites–cermets. We present a current state of knowledge in the field of ceramic-rich (≥50 vol%) cermets behavior in abrasion and erosion conditions, which are the dominant types of wear in many industrial applications. Distinction is made between two-body and three-body abrasion, solid-particle erosion, and slurry erosion. Cermets, in particular TiC-, Ti(C,N)- and Cr3C2-based composites and hardmetals, are compared for their abrasive and erosive wear performance and mechanism. The review enabled formulation of tribological conditions in which cermets may be comparable or have potential to outperform WC-Co hardmetals. Hardmetals, in general, outperform cermets in abrasion and solid-particle erosion at room and moderate temperatures. However, cermets demonstrate their potential mainly in severe conditions—at elevated temperatures and corrosive (oxidation, electrochemical corrosion) environments.

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Erosion mechanisms of aluminium nitride ceramics at different impact angles

Grilec¹,

Ćurković²,

Kumić³

et al. 2011

Materialwissenschaft Werkst

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In this paper, erosion wear behaviour of aluminium nitride (AlN) ceramics is studied. The influence of particle hardness and shape on erosion of the AlN surface is examined. The effect of varying the impingement angle on the weight loss and the roughness parameters of AlN ceramics testing sample is also determined. Therefore, erosive wear behaviour of AlN ceramics was investigated using SiC and SiO 2 particles as erodents, at following impact angles: 30 8, 458, 60 8, 758 and 90 8. Scanning electron microscopy (SEM) was used to analyze the eroded surfaces in order to determine erosion mechanisms. The roughness parameters (R a , R z and R max ), before and after erosion with SiO 2 and SiC particles at 30 8 and 90 8 angles of impingement, respectively, were determined using a profilometer. It was found that the impact angle is influencing the erosion wear of the AlN ceramics and maximum erosion takes place at impact angle of 90 8. The results indicate that hard, angular SiC particles cause more damage than softer, more rounded SiO 2 particles.

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Erosion of ceramics and cermets

Cited by 11 publications

References 4 publications

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

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

Abrasion and Erosion Resistance of Cermets: A Review

Erosion mechanisms of aluminium nitride ceramics at different impact angles

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