Microstructure characterization and mechanical properties of Ti(C, N)-based cermets with AlN addition

Zhou, Wei; Zheng, Yong; Zhao, Yijie; Ma, Yi-Ping; Xiong, Weihao

doi:10.1016/j.ceramint.2014.12.068

Cited by 33 publications

(7 citation statements)

References 20 publications

(17 reference statements)

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“…However, although the size of particles has not changed largely with the Cr 3 C 2 content exceeds 1 wt%, the strength and toughness decline rapidly. First, some brittle η phases appear with more than 1 wt% Cr 3 C 2 addition , which is responsible for lower TRS and toughness . Second, incomplete rim phase and coarsening grains will hinder improvement of properties due to reduced wettability.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr₃C₂ addition

Xiong

Gan

et al. 2019

Int J Applied Ceramic Tech

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TiN‐based cermets with different Cr3C2 addition were prepared by conventional vacuum sintering. Effect of Cr3C2 on microstructure and properties of TiN‐based cermets were discussed. Owing to the formation of sound rims on TiN cores, ultrafine TiN‐based cermets with more uniform microstructure and finer grains were obtained with 1 wt% Cr3C2. When the added Cr3C2 content enhanced from 0 to 2 wt%, the transverse rupture strength (TRS) and fracture toughness increased firstly and then decreased, while the hardness increased monotonically. For the experimental conditions considered, the cermet with 1 wt% Cr3C2 addition had optimal combination of hardness (91HRA), fracture toughness (14.7 MPa m1/2) and TRS (2123 MPa).

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Section: Resultsmentioning

confidence: 99%

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr₃C₂ addition

Xiong

Gan

et al. 2019

Int J Applied Ceramic Tech

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“…14 However, the studies of bulk Ti/AlN composites are scarce, which is owing to its uncontrollable interfacial reaction and phase transformation during the sintering process. 15 Yin et al 16 confirmed that AlN phase decomposed and released N and Al atoms at 1283°C, 1181°C, and 1083°C through the thermodynamic calculation based on first principles. Gao et al 17 and Paransky et al 18 stated that the released N and Al atoms should react between Ti to form solid solution such as Ti-Al-N and TiN phase through the point of thermodynamic calculation and experiment.…”

Section: Introductionmentioning

confidence: 92%

“…However, the studies of bulk Ti/AlN composites are scarce, which is owing to its uncontrollable interfacial reaction and phase transformation during the sintering process . Yin et al confirmed that AlN phase decomposed and released N and Al atoms at 1283°C, 1181°C, and 1083°C through the thermodynamic calculation based on first principles.…”

Section: Introductionmentioning

confidence: 99%

The Emergence for Multilamellar Ti–Al–N Solid Solution in Ti/AlN Composites Sintered at Various Temperatures

et al. 2016

J. Am. Ceram. Soc.

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Nowadays, a variety of coatings such as Ti–Al–N and TiN have been proposed in titanium machining, but few results on fabrication of bulk Ti/AlN composites were reported. Here, we prepared bulk Ti‐60 wt%AlN composites via vacuum hot‐press sintering at 1250°C–1450°C under an applied pressure of 30 MPa for 1 h. With sintering temperature increasing, the mechanical properties of Ti/AlN composites improved and achieved the maximum values when the sintering temperature is 1450°C. SEM detected the multilamellar grains which are confirmed as Ti–Al–N solid solution by XRD and EDS. Finally, microstructure evolution and phase transformation of Ti/AlN composites were illustrated that Al and N atoms diffuse across the grain boundary and react with Ti atoms to form TiN phase and multilamellar Ti–Al–N solid solution. This work is interesting for producing high strength and toughens metal/ceramic composites.

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“…Despite this, there are not many publications on these cermet coatings [2][3][4][5][6][7]. A much larger number of publications are devoted to bulk cermets fabricated by liquid-phase sintering at temperatures of 1300-1500°C [8][9][10][11][12][13][14][15][16][17][18][19][20][21]. In the latter publications on bulk cermets, special attention is paid to increasing their mechanical properties (transverse strength, hardness, and crack resistance) through to the formation of a strong bond between TiC and the matrix.…”

Section: Introductionmentioning

confidence: 99%

TiC–Cr3C2–WC–NiCr–Mo–C Cermet Plasma Coatings

Калита

Radyuk

Комлев

et al. 2021

Inorg. Mater. Appl. Res.

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Two bulk cermets TiC-WC-Cr 3 C 2 -(Ni80Cr20)-Mo-2.8C after liquid-phase sintering at 1400°C for 1 h were used to manufacture powders for plasma spraying of coatings. The cermets were fabricated at a limited time of mechanical alloying at the mixing stage. Plasma coatings were sprayed on a setup with a nozzle attached to a plasmatron for local protection of the sprayed particles from the air atmosphere. The WC-Cr 3 C 2 -C content in the cermets provided compensation for carbon losses at all stages of coating production and the formation of an annular zone, the volume of which determines the increase in the TiC content in the coatings by 20% and the formation of additional carbides in the matrix. The microhardness of cermet at an initial carbide content of 60% was 15.26-16.83 GPa with a load on the indenter of 200 G and 20.91-24.68 GPa with a load on the indenter of 20 G, and the difference was explained by a scale factor. The contribution of the microhardness of carbides to the microhardness of cermet with an initial carbide content of 60% was estimated according to the rule of mixtures, proceeding from their volume fraction and microhardness of cermet under a load on the indenter of 20 G. In the initial powder for spraying, this contribution is high, 33.19 GPa, close to the hardness of TiC. The contribution of microhardness of carbides in the coating is lower, 28.09 GPa.

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Microstructure characterization and mechanical properties of Ti(C, N)-based cermets with AlN addition

Cited by 33 publications

References 20 publications

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr₃C₂ addition

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr₃C₂ addition

The Emergence for Multilamellar Ti–Al–N Solid Solution in Ti/AlN Composites Sintered at Various Temperatures

TiC–Cr3C2–WC–NiCr–Mo–C Cermet Plasma Coatings

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Microstructure characterization and mechanical properties of Ti(C, N)-based cermets with AlN addition

Cited by 33 publications

References 20 publications

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr3C2 addition

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr3C2 addition

The Emergence for Multilamellar Ti–Al–N Solid Solution in Ti/AlN Composites Sintered at Various Temperatures

TiC–Cr3C2–WC–NiCr–Mo–C Cermet Plasma Coatings

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Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr₃C₂ addition

Microstructure and mechanical properties of TiN‐based cermet reinforced by Cr₃C₂ addition