Distribution of Alloying Elements in Carbides of Refractory Nickel Alloys under the Conditions of Equiaxial Crystallization

Глотка, А. А.

doi:10.1007/s11003-021-00487-5

Cited by 6 publications

(3 citation statements)

References 13 publications

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“…According to the studies carried out by Glotka et al [8] at high Mo content, carbides can form films that worsen mechanical characteristics. The SEM-EDS analyses carried out highlighted the presence of molybdenum both at the grain boundary in the form of rounded particles (without film formation) but also in the area of large intragranular particles containing titanium.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

“…Microhardness measurements showed a decrease in hardness in the thermally affected area with the increase in the temperature of the shocks and the number of applied thermal shocks. The exception found for the shock temperature of 700 • C, located in the annealing temperature range [5][6][7][8], can be explained by precipitation in the completion of the annealing process.…”

Section: Discussion Of Resultsmentioning

confidence: 99%

“…The structure of the alloy shows a γ austenitic type, a solid solution matrix, with a fcc network. The superior hardening of this alloy is induced by aging, through the secondary precipitation at the grain boundary of the γ solid solution, rich in Cr, Co, and Mo, of the intermetallic compounds that form between Ni, Al, and Ti of the Ni x Al y or Ni x (Al Ti) y type, called the γ' phase [5][6][7][8][9][10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

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The Influence of Cyclic Thermal Shocks at High Temperatures on the Microstructure, Hardness and Thermal Diffusivity of the Rene 41 Alloy

Ungureanu Arva,

Negrea,

Galatanu

et al. 2024

Materials

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The precipitation-hardenable nickel-based superalloy Rene 41 exhibits remarkable mechanical characteristics and high corrosion resistance at high temperatures, properties that allow it to be used in high-end applications. This research paper presents findings on the influence of thermal shocks on its microstructure, hardness, and thermal diffusivity at temperatures between 700 and 1000 °C. Solar energy was used for cyclic thermal shock tests. The samples were characterized using microhardness measurements, optical microscopic analysis, scanning electron microscopy coupled with EDS elemental chemical analysis, X-ray diffraction, and flash thermal diffusivity measurements. Structural transformations and the variation of properties were observed with an increase in the number of shocks applied at the same temperature and with temperature variation for the same number of thermal shocks.

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Section: Discussion Of Resultsmentioning

confidence: 99%

Section: Discussion Of Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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The Influence of Cyclic Thermal Shocks at High Temperatures on the Microstructure, Hardness and Thermal Diffusivity of the Rene 41 Alloy

Ungureanu Arva,

Negrea,

Galatanu

et al. 2024

Materials

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Thermal Stability, Cyclic Durability and Hydrogen Resistance of Cast Nickel-Cobalt Alloys for Gas Turbine Blades

Іvas’kevych

Balitskii

Kvasnytska

et al. 2022

Lecture Notes in Mechanical Engineering

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Experimental Research on the Influence of Repeated Overheating on the Thermal Diffusivity of the Inconel 718 Alloy

Arva,

Abrudeanu,

Negrea

et al. 2024

Applied Sciences

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The Inconel 718 superalloy, a precipitation-hardenable material, is of particular interest for applications involving components operating under extreme conditions due to its excellent mechanical properties, high corrosion resistance at temperatures up to 700 °C, and good workability. At high temperatures, thermal transfer processes are crucial for temperature distribution across the component’s section, structural transformations, and variations in the alloy’s properties. The history of accidental overheating events is critical for the microstructure and properties of the alloy. Studies on thermal transfer in the Inconel 718 alloy available in the literature typically focus on the alloy in its as-delivered state. The experimental research presented in this paper examines the influence of repeated overheating history on the thermal diffusivity of the alloy.

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Distribution of Alloying Elements in Carbides of Refractory Nickel Alloys under the Conditions of Equiaxial Crystallization

Cited by 6 publications

References 13 publications

The Influence of Cyclic Thermal Shocks at High Temperatures on the Microstructure, Hardness and Thermal Diffusivity of the Rene 41 Alloy

The Influence of Cyclic Thermal Shocks at High Temperatures on the Microstructure, Hardness and Thermal Diffusivity of the Rene 41 Alloy

Thermal Stability, Cyclic Durability and Hydrogen Resistance of Cast Nickel-Cobalt Alloys for Gas Turbine Blades

Experimental Research on the Influence of Repeated Overheating on the Thermal Diffusivity of the Inconel 718 Alloy

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