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Hardening in steels with a controllable austenitic γ → α transformation intended for pressing tools
Pleiades Publishing Ltd - Tập 2006 - Trang 69-72 - 2006
The hardening of 4Kh2N5M2F2 steel is studied during plastic deformation at temperatures of 400–900°C. The strength of this steel is found to increase significantly after this treatment at temperatures below the recrystallization temperature. The vanadium carbonitrides forming in the steel at elevated temperatures decrease the grain size, decrease the sensitivity to overheating, and increase the im...... hiện toàn bộ
Phenomenological aspects of creating competitive intellectual property objects in metallurgy
Pleiades Publishing Ltd - Tập 2008 - Trang 766-770 - 2009
Viscosity of the liquid Al–6Mg–1Mn–0.2Sc–0.1Zr alloy
Pleiades Publishing Ltd - - 2017
The microstructure and the phase composition of as-cast Al–Mg–Mn–Sc–Zr alloy samples are studied by electron microscopy and electron-probe microanalysis. The processes of solidification and melting of this alloy are described. The temperature dependence of the kinematic viscosity of the Al–Mg–Mn–Sc–Zr melts is studied during heating and subsequent cooling of the samples. The measurement results ar...... hiện toàn bộ
Phase equilibria in the four-component Cr-Ni-Re-Ta system at 1375 K
Pleiades Publishing Ltd - Tập 2015 - Trang 412-420 - 2015
The phase equilibria in the four-component Cr-Ni-Re-Ta system at 1375 K are determined by a set of methods of physicochemical analysis using the graph method. It is experimentally found that the system exhibits nine four-phase equilibria, including α + βCr + βTa + λ, α + βCr + βTa + σ, α + βCr + γ + σ, α + βTa + λ + µ, α + βTa + σ + χ, α + γ + σ + (Re), α + λ + µ + Ni2Ta, α + σ + χ + (Re), and βTa...... hiện toàn bộ
Structure formation in grade 20 steel during equal-channel angular pressing and subsequent heating
Pleiades Publishing Ltd - Tập 2016 - Trang 1012-1020 - 2017
The structure formation and the mechanical properties of quenched and tempered grade 20 steel after equal-channel angular pressing (ECAP) at various true strains and 400°C are studied. Electron microscopy analysis after ECAP shows a partially submicrocrystalline and partially subgrain structure with a structural element size of 340–375 nm. The structural element size depends on the region in which...... hiện toàn bộ
Reaction of Oxygen with Uranium Trichloride in Molten Alkali Metal Chlorides
Pleiades Publishing Ltd - Tập 2021 - Trang 1040-1043 - 2021
The reactions of oxygen and oxygen-containing gas mixtures (Ar–O2, O2–H2O, and Ar–O2–H2O of various composition) with chloride melts containing uranium(III) ions are studied. Experiments are carried out in molten LiCl at 750°C and a LiCl–KCl eutectic mixture at 550 and 750°C. The uranium content in the melts was varied in the range 0.3–3.5 wt %. The effects of the oxygen to uranium molar ratio and...... hiện toàn bộ
Increasing the quality of rolls intended for cold-rolling mills
Pleiades Publishing Ltd - Tập 2007 - Trang 656-658 - 2007
Role of the New PHACOMP Method in the Development and Production of Nickel Superalloys. Its Correction for Last-Generation Single-Crystal Alloys
Pleiades Publishing Ltd - Tập 2021 - Trang 727-734 - 2021
The character of changing the M(
$$\bar {d}$$
)γ criterion, which is used in the New PHACOMP method and determines the ability of nickel superalloys to form embrittling TCP phases, is determined, and new methods for optimizing their compositions are proposed. They reliably ensure the abs...... hiện toàn bộ
Konstantin Aleksandrovich Solntsev (on his 60th birthday)
Pleiades Publishing Ltd - Tập 2010 - Trang 157-158 - 2010
Kinetics and morphology of deformation bands at the initial stage of the loss of a stable plastic flow in the 5456 alloy
Pleiades Publishing Ltd - Tập 2010 - Trang 881-888 - 2011
High-speed video filming is used to study the kinetics and morphology of the first deformation bands on the surface of the 5456 alloy having various initial microstructures. The mobility and morphology of the bands is found to change sharply after annealing in the vicinity of the solvus temperature. The dissolution of β(Al3Mg2) particles causes a transition from a plane into a branching morphology...... hiện toàn bộ
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