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Article
Next-Generation Materials and Digital Additive Technologies for the Production of Resource Parts in FGUP VIAM: II. Deviation Compensation and Control, HIP, and Heat Treatment
Abstract—The generation of supporting structures, the compensation of geometric deviations in the process of selective laser synthesis, nondestructive testing, heat treatment, and hot isostatic pressing treatment...
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Article
Next-Generation Materials and Digital Additive Technologies for the Production of Resource Parts in FGUP VIAM: I. Synthesis Materials and Technologies
The main stages of the development of selective laser synthesis of resource parts, including the stages of melting a charge blank, production of metallic powder compositions, physicomechanical treatment of pow...
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Article
Special Features of Formation of Surface by Selective Laser Melting
Special features of formation of UpSkin and DownSkin surfaces of specimens of refractory alloy EP648 synthesized by selective laser melting are considered. The relation between the laser energy density and the...
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Article
Numerical and Computer Simulation of the Temperature Fields inside a Casting
The temperature distributions on the surface of a mold with a casting during directional solidification are experimentally obtained using thermocouples. These data on the temperature distribution over the cast...
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Article
Physicochemical Properties of Sm2O3–ZrO2–HfO2 Ceramics for the Development of Promising Thermal Barrier Coatings
In continuation of our systematic study of the options of the development of high-performance thermal barrier coatings based on three-component ceramic materials comprising rare-earth oxides, we report on the ...
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Article
Features of Deformation of High-Alloy Heat-Resistant Nickel Alloys near the Complete Dissolution Temperature of the Strengthening γ' Phase
The features of deformation of high-alloy heat-resistant nickel alloys for disks of gas turbine engines of the Ni–Co–Cr–W–Al–Nb–Ti–Mo system (EP962, EK151, and EP975 type) have been studied near the temperatur...
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Article
Specifics of Producing Disk Blanks for Gas-Turbine Engines using Granules of Super Heat-Resistant Nickel Alloys
The paper discusses the specifics of chemical composition, hot isostatic pressing (HIP), and heat treatment of granulated heat-resistant nickel alloys characterized by high long-term strength at 750°C. The res...
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Article
Development and Study of High-Strength Corrosion-Resistant Steel for Bearing Components
The chemical composition of high-strength corrosion-resistant steel of the martensitic class with an ultra- high nitrogen content is developed. Regimes for melting and electroslag remelting under pressure and ...
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Article
Key Differences between the Technology of Production of GTE Disk Blanks from Nickel Superalloy Granules and the Technology of Isothermal Deformation: A Review
The differences between the chemical compositions, the technologies of melting and remelting, and the heat-treatment conditions of the granulated and deformed nickel superalloys used for the production of GTE ...
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Article
Simulation of the Heat Treatment of the Welded Joints in a High-Pressure Compressor
The state of stress in the welded joints of new nickel and titanium alloys in a high-pressure compressor during heat treatment is simulated. The QForm software package is used to simulate the results of heat t...
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Article
Change in the Microstructure of Ni Alloy Disk Workpieces for Gas Turbine Engines Produced by the HIP + Deformation Method
Abstract—The changes in the microstructure during thermomechanical treatment under different regimes of a new granulated heat-resistant alloy based on VZh178P nickel obtained by the method of hot isostatic pressi...
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Article
Development of Ni-Base Superalloy with Operating Temperature up to 800°C for Gas Turbine Disks
Abstract—The results of development of new nickel-base superalloy having an operating temperature up to 800°C for gas turbine disks have been presented. Structures, mechanical properties, and phase transformation...
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Article
Phase Composition Formation in a V-1469 Alloy (Al–Cu–Li System) during Friction Stir Welding
The morphology of the intermetallic phases and their contents in the welded joint zones of a V‑1469 alloy (Al–Cu–Li system) are studied by X-ray diffraction and transmission electron microscopy. Welding is sho...
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Article
Low-Cycle Fatigue under Controlled Deformation and Fracture of the Superalloy VZh175
Low-cycle fatigue of the superalloy VZh175 heat-resistant alloy was studied under controlled deformation at room and high temperatures. The parameters of cyclic elastoplastic deformation and characteristics of...
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Article
Low-cycle fatigue of a VZh175 high-temperature alloy under elastoplastic deformation conditions
The low-cycle fatigue of a VZh175 nickel superalloy is studied under conditions of complete deformation per loading cycle at an initial cycle asymmetry R = 0, a deformation amplitude ɛa = 0.4–0.6%, and a temperat...
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Article
Effect of Microalloying Elements on the Structure and Phase Stability and Properties of Heat-Resistant Deformable Alloy (with Long Operating Times)
Results are presented for a study of the effect of microadditions of rare-earth and rare metals on the structure and phase stability and mechanical properties of a new high-temperature nickel-base alloy for tu...
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Article
Heat-Resistant Wrought Weldable Alloy for GTE Components with Low Linear Thermal Expansion Coefficient
Features of the effect of alloying elements on linear thermal expansion coefficient of wrought heat-resistant alloys based on the Ni–Fe system are studied. Short-term and long-term strength at 600°C is simulat...
