Study of the Structure and Properties of Cermets Based on the NiAl–Al2O3 System

Агуреев, Л. Е.; Костиков, В. И.; Eremeeva, Zh. V.; Ivanov, B. S.; Савушкина, С. В.; Laptev, I. N.; Ашмарин, А. А.; Иванов, А. В.; Sivtsova, G. V.

doi:10.3103/s106782122106002x

Cited by 3 publications

(2 citation statements)

References 32 publications

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“…However, due to the reaction-bonding mechanism in the latter materials with specially selected PSD of SiC, rather high consolidation level and satisfactory properties can be attained. Physical properties of cermets strongly depend on the ratio of ceramic/metallic phases, PSD of the starting ceramic phase, firing conditions, and so on 112,117,[173][174][175][176][177] The cermets' structures can be modified toward more homogeneous distribution of the ceramic ingredients with smaller particle sizes. Thus, an addition of 3-mol% Y 2 O 3 -ZrO 2 to Cr 3 C 2 -NiCr cermets' compositions allowed to increase their homogeneity with smaller grain sizes and to increase their strength and toughness.…”

Section: Advanced Ceramics and Coatings' Structure And Propertiesmentioning

confidence: 99%

Advanced ceramics and coatings for erosion‐related applications in mineral and oil and gas production: A technical review

Medvedovski¹

2022

Int J Applied Ceramic Tech

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The applications of advanced ceramics, composites and coatings in mineral, mining, fuel production, and processing are reviewed. The materials include oxide and non‐oxide ceramics (specifically SiC‐based), ceramic–ceramic, and ceramic–metal composites, coatings on metallic components where functional application properties can be achieved. Some principles of materials selection, specifically for erosion wear and corrosion applications, and manufacturing are considered. The examples of the successful development and processing of ceramics, coatings, and composites with manageable structures and phase compositions, in the erosion‐related applications, particularly conducted by the author, are discussed and reviewed. Specifically, industrially employed types of ceramics and processing routes were focused on the considered applications. Particular demands for advanced materials with high reliability and complex shapes or for protective coatings on complex shape steel components and long tubing with inner surface protection require novel and optimized processing. The factors affecting erosion and erosion–corrosion resistance and the paths for the erosion resistance enhancement of ceramic and coating materials are considered. Ceramic components design, technology, and installation features are reviewed.

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Section: Advanced Ceramics and Coatings' Structure And Propertiesmentioning

confidence: 99%

Advanced ceramics and coatings for erosion‐related applications in mineral and oil and gas production: A technical review

Medvedovski¹

2022

Int J Applied Ceramic Tech

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“…CrMo alloys consisting of a solid solution are characterized by high heat resistance and corrosion resistance, which makes them promising as additions to NiAl-based materials. Moreover, the addition of small amounts of insoluble nanoparticles to a metal or alloy matrix leads to an increase in the strength characteristics and creep resistance, as well as to an improvement in a number of functional properties [ 27 , 28 , 29 ]. This paper describes the study of materials based on the system (at.%) NiAl-13Cr-13Mo (marked as “M”) with small additions of zirconium oxide (0.01–0.1 wt.%) or aluminum magnesium spinel (0.01–0.2 wt.%) nanoparticles, formed by spark plasma sintering of mechanically activated powders.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Агуреев¹,

Костиков

Савушкина

et al. 2022

Materials

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Materials based on the NiAl-Cr-Mo system with zirconium oxide or aluminum-magnesium spinel nanoparticle small additions were obtained by spark plasma sintering. Thermodynamic modeling was carried out to predict the phase formation in the NiAl-Cr-Mo system and its change depending on temperature, considering the presence of a small amount of carbon in the system. The phase composition and microstructure of materials were studied. NiAl (B2) and CrMo phases were found in the sintered samples. Bending strength measurements at different temperatures shows that nanoparticles of insoluble additives lead to an increase in bending strength, especially at high temperatures. A fractographic analysis of the sample’s fractures shows their hybrid nature and intercrystalline fracture, which is confirmed by the clearly visible matrix grains similar to cleavage. The maximum strength at 700 °C (475 MPa) was found for material with the addition of 0.1 wt.% zirconium oxide nanoparticles. In the study of internal friction, typical peaks of a nickel-aluminum alloy were found in the temperature ranges of 150–200 °C and 350–400 °C.

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Tribological and corrosion characteristics of aluminium–copper alloys reinforced with alumina nickel aluminide cermet powder

Bhadrinath,

Saravanan,

Vaira Vignesh

et al. 2024

Corrosion Engineering, Science and Technology: The Internationa

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Aluminium–Copper (Al-10Cu) alloys are widely used for structural components in the aviation sector. This study focuses on the synthesis and characterisation of Al-10Cu alloy reinforced with Al2O3-30(Ni-20Al) cermet particles to evaluate their microstructural, mechanical, tribological and corrosion properties. The Al-10Cu alloy was cast with varying percentages of cermet (2% and 4%) using a controlled casting process. Comprehensive microstructural analyses, including optical microscopy, SEM and EBSD, were performed to assess the grain structure and cermet distribution. The mechanical properties were evaluated through Vickers microhardness and tensile testing, while tribological performance was assessed using a Pin-on-Disc tribometer. Corrosion resistance was investigated through exfoliation and immersion corrosion tests. The results indicated significant improvements in microhardness and wear resistance with the addition of cermet particles, while the tensile strength showed a complex interplay between ductility and brittleness. Corrosion tests revealed enhanced resistance in cermet-reinforced specimens. This study demonstrates the potential of Al2O3-30(Ni-20Al) cermet as an effective reinforcement for aluminium alloys to achieve superior performance in structural applications.

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Study of the Structure and Properties of Cermets Based on the NiAl–Al2O3 System

Cited by 3 publications

References 32 publications

Advanced ceramics and coatings for erosion‐related applications in mineral and oil and gas production: A technical review

Advanced ceramics and coatings for erosion‐related applications in mineral and oil and gas production: A technical review

Preparation and Study of Composite Materials of the NiAl-Cr-Mo-Nanoparticles (ZrO2, MgAl2O4) System

Tribological and corrosion characteristics of aluminium–copper alloys reinforced with alumina nickel aluminide cermet powder

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