Improvement mechanism of the oxidation resistance of Al-doped Ti(C,N)-based cermets: Influence of enriched Al in the subsurface oxide layer

Li, A.Q.; Lin, Nan; Xu, Liang; Zhang, W.J.; Zhang, X.C.; Wang, Z.Y.

doi:10.1016/j.corsci.2022.110722

Cited by 10 publications

(5 citation statements)

References 32 publications

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“…The thicknesses are shown in Figure 5. This indicates that the addition of Al greatly improves the oxidation resistance of the metal cermets [79]. The thickness of the OL of Ni 3 Al binder cermet increases with increasing oxidation temperature and holding time.…”

Section: Oxidation and Wear Resistance Of Ni-al Intermetallic Compoun...mentioning

confidence: 83%

A Review of Research Progress on Ti(C,N)-Based Cermet Binder by Intermetallic Compounds and High-Entropy Alloys

Wang,

Bai,

Wang

et al. 2024

Materials

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Ti(C,N)-based cermet is a kind of composite material composed of a metal binder phase and a Ti(C,N)-hard phase, which is widely used in the fields of cutting machining and wear-resistant parts due to its high hardness, good toughness, wear resistance, and chemical stability. In recent years, the research on the replacement of traditional Ni, Co, and Fe binder phases by novel binder phases such as intermetallic compounds and high-entropy alloys has made remarkable progress, which significantly improves the mechanical properties, wear resistance, corrosion resistance, and high-temperature oxidation resistance of Ti(C,N)-based cermets. This paper reviews the latest research results, summarizes the mechanism of the new binder to improve the performance of metal–ceramics, and looks forward to the future research directions.

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Section: Oxidation and Wear Resistance Of Ni-al Intermetallic Compoun...mentioning

confidence: 83%

A Review of Research Progress on Ti(C,N)-Based Cermet Binder by Intermetallic Compounds and High-Entropy Alloys

Wang,

Bai,

Wang

et al. 2024

Materials

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“…However, the internal film was much thicker than those in HEA-containing cermets, and the inward oxygen diffusion was evident. The key factors impacting on the oxidation resistance of the oxidation fil, include the thickness, continuity, and compactness [ 27 , 28 ]. In particular, the oxidation film with moderate thickness, better continuity and compactness can prevent the inward diffusion of oxygen and the further oxidation of materials thanks to its better oxidation resistance.…”

Section: Resultsmentioning

confidence: 99%

Microstructure and Properties of Ti(C,N)-Based Cermets with AlxCoCrFeNiTi Binder

et al. 2023

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AlxCoCrFeNiTi (x = 0.1, 0.3, 0.6, 1) powders were prepared via mechanical alloying and were used as binders for SPS-produced Ti(C,N)-based cermets. The effects of AlxCoCrFeNiTi binder on phase composition, morphology, room-temperature mechanical properties, and oxidation resistance of cermets were studied. The research showed that cermets with AlxCoCrFeNiTi binders exhibited a more homogeneous core–rim structure than cermets with cobalt binders. The Vickers hardness and fracture toughness of cermets with AlxCoCrFeNiTi binders increased with the aluminum molar ratio due to the grain refinement and solid solution strengthening effect of carbonitrides. After static oxidation at 1000 °C, the mass gain of the cermets with AlxCoCrFeNiTi binders changed according to a quasi-parabolic law, and the lowest mass gain was obtained in the cermet with Al0.6CoCrFeNiTi binder. The oxidation kinetics curve of the benchmark cermet with cobalt followed a linear law. The oxidation product of Ti(C,N)-based cermet with cobalt was rich in TiO2, and the Ti(C,N)-based cermets with AlxCoCrFeNiTi binders were transformed into complex oxides, such as NiMoO4, NiWO4, FeMoO4, Fe3Ti3O9, and Ni3TiO7. The oxide layer on the cermet with Al0.6CoCrFeNiTi appeared to be dense and protective, which inhibited the diffusion of oxygen into the cermet and improved the oxidation resistance of the final product.

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“…[24][25][26][27] Meanwhile, the high-temperature stability and corrosion resistance of AlN ceramics are also excellent as they are not wetted by Al, Ca, and other metals at high temperatures. [28][29][30] The combination of these properties makes AlN ceramics suitable for various applications including electronic packaging, 31,32 alloy smelting, [33][34][35] heat dissipation substrates, 36,37 etc. Regrettably, the degradation of the mechanical property of brittle AlN ceramics during thermal shock is bound to happen, which poses challenges and limits their applications to some extent.…”

Section: Introductionmentioning

confidence: 99%

“…Aluminum nitride (AlN) ceramics possess excellent properties in terms of high thermal conductivity (200 W/m·K), low coefficient of thermal expansion (4.5 × 10 −6 /°C), high flexure strength (300–450 MPa), and high Young's modulus (340 GPa) 24–27 . Meanwhile, the high‐temperature stability and corrosion resistance of AlN ceramics are also excellent as they are not wetted by Al, Ca, and other metals at high temperatures 28–30 . The combination of these properties makes AlN ceramics suitable for various applications including electronic packaging, 31,32 alloy smelting, 33–35 heat dissipation substrates, 36,37 etc.…”

Section: Introductionmentioning

confidence: 99%

Aluminum nitride‐based ceramics with excellent thermal shock resistances

Wang,

Zou,

Cai

et al. 2024

J Am Ceram Soc.

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Ceramics were susceptible to thermal shock failure. In this work, aluminum nitride‐based ceramics with excellent thermal shock resistance were developed. Thermal shock resistance was evaluated in the temperature range of 1200–1600°C by thermal cycling of 10, 20, 30, and 50 times. The phase composition, microstructure, and mechanical properties of the ceramics before and after the thermal shock were investigated. After 50 thermal cycles, the retention rates of the flexural strength and fracture toughness were 81.7% and 113.1%, respectively. The excellent thermal shock resistance was attributed to the combined effects of amorphous grain boundaries that passivate the propagation of microcracks and in‐situ precipitation of nanocrystalline particles during thermal cycles, both of which provide useful guidelines for developing ceramics with better thermal shock resistances.

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Improvement mechanism of the oxidation resistance of Al-doped Ti(C,N)-based cermets: Influence of enriched Al in the subsurface oxide layer

Cited by 10 publications

References 32 publications

A Review of Research Progress on Ti(C,N)-Based Cermet Binder by Intermetallic Compounds and High-Entropy Alloys

A Review of Research Progress on Ti(C,N)-Based Cermet Binder by Intermetallic Compounds and High-Entropy Alloys

Microstructure and Properties of Ti(C,N)-Based Cermets with AlxCoCrFeNiTi Binder

Aluminum nitride‐based ceramics with excellent thermal shock resistances

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