Distribution of Alloying Elements in the Structure of Heat-Resistant Nickel Alloys in Secondary Carbides

Глотка, А. А.; Gaiduk, S.V.

doi:10.1007/s10812-020-01075-2

Cited by 11 publications

(2 citation statements)

References 12 publications

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“…the development of new and optimization of existing alloys for cast parts, namely, the most heavily loaded, such as the working and nozzle blades of a gas turbine engine, is a material science, design and technological task that requires a comprehensive solution [1][2][3][4][5][6]. For modern thermally stressed gas turbine engines, the above-mentioned complex-profile parts are made from multicomponent heat-resistant alloys based on nickel, cobalt and iron by the methods of equiaxed, directional or monocrystalline casting [7][8][9][10][11][12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Глотка

Ольшанецкий

2021

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Forecasting the ProPerties oF heat-resistant nickel alloys equalaxial crystallizationAs a result of experimental data processing, the ratio of alloying elements Кγ' was proposed for the first time, which can be used to assess the mechanical properties, taking into account the complex effect of the main alloy components. the regularities of the influence of the composition on the properties of heat-resistant nickel alloys of equiaxial crystallization are established. it is shown that for multicomponent nickel systems it is possible with a high probability to predict a mismatch, which significantly affects the strength characteristics of alloys of this class. A promising and effective direction in solving the problem of predicting the main characteristics of heat-resistant materials based on nickel is shown.

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Section: Introductionmentioning

confidence: 99%

Archives of Metallurgy and Materials

Глотка

Ольшанецкий

2021

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“…Single crystals alloys are characterized by the presence of primary carbides of spherical, block or script-like morphology [14][15][16][17][18][19]. The main method for studying such fine structures is x-ray spectroscopy, which fully makes it possible to determine the main characteristics of the fine structure [20][21][22][23][24].…”

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confidence: 99%

Influence of Alloying Elements on Composition of Primary Carbides in Ni–11.5Cr–5Co–3.6Al–4.5Ti–7W–0.8Mo–0.06C System

Ol'shanetskii¹,

Глотка²

2022

Metallofiz. Noveishie Tekhnol.

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In this work, theoretical modelling of the thermodynamic processes of the release of excess phases is carried out using the CALPHAD method. As well as a practical study of the structure and distribution of chemical elements in carbides, depending on alloying using scanning electron microscopy. It has been established that in typical carbides, for the system Ni-11.5Cr-5Co-3.6Al-4.5Ti-7W-0.8Mo-0.06C, there is a tendency to degeneration and phase reactions depending on the level of alloying with the given elements. The mathematical dependences of the influence of alloying on the temperature of precipitation (dissolution) of carbides and the change in the chemical composition of the alloy on the content of elements in carbides are established. The obtained dependences were experimentally confirmed using scanning electron microscopy on nickel-based superalloys.

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