20 research outputs found
The Ability of Quantum Dots Formation in Thin Nanostructured Amorphous Films
In the last years an interest in field of quantum dots devices creating has been increased. In this work the nanocrystallite with Frank-Kasper structure was examined as the quantum dot in amorphous film. An ability to create all-inorganic Quantum Dots Light Emission Device may be considered for Tb 30 Fe 70 , Co 80 C 20 , Fe 86 Mn 13 C and Co 50 Pd 50 films. The self-organisation of atomic structure in Tb 30 Fe 70 , Co 80 C 20 , Fe 86 Mn 13 C and Co 50 Pd 50 films, which possess large values of perpendicular magnetic anisotropy (PMA) constant (K β₯ ~ 10
erg/cm
), were investigated by methods of electron diffraction and transmission electron microscopy, including the method of bend contours. The crystallization of the films proceeds in an explosive way forming different dissipative structures from initial nanocrystalline state. In previous works [2, 3] it was shown that after crystallization (Π’ ann ~ 260-330 Β°C) the atomic structures of Tb 30 Fe 70 , Co 80 C 20 , Fe 86 Mn 13 C and Co 50 Pd 50 films are tetrahedrally close-packed Frank-Kasper structures. In this work the structural model of thin film at mesoscale and its correlation with magnetic and optical properties is proposed.Π ΠΏΠΎΡΠ»Π΅Π΄Π½ΠΈΠ΅ Π³ΠΎΠ΄Ρ Π±ΠΎΠ»ΡΡΠΎΠΉ ΠΈΠ½ΡΠ΅ΡΠ΅Ρ ΠΏΡΠΈΠ²Π»Π΅ΠΊΠ°ΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ, ΡΠ²ΡΠ·Π°Π½Π½ΡΠ΅ Ρ ΡΡΡΡΠΎΠΉΡΡΠ²Π°ΠΌΠΈ, ΡΠ°Π±ΠΎΡΠ°ΡΡΠΈΠΌΠΈ Π½Π° ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠΊΠ°Ρ
. Π Π΄Π°Π½Π½ΠΎΠΉ ΡΡΠ°ΡΡΠ΅ Π½Π°Π½ΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΡ ΡΠΎ ΡΡΡΡΠΊΡΡΡΠ°ΠΌΠΈ Π€ΡΠ°Π½ΠΊΠ°-ΠΠ°ΡΠΏΠ΅ΡΠ° ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΠΊΠ°ΠΊ ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΠ΅ ΡΠΎΡΠΊΠΈ Π² Π°ΠΌΠΎΡΡΠ½ΡΡ
ΠΏΠ»Π΅Π½ΠΊΠ°Ρ
. ΠΠΎΠ·ΠΌΠΎΠΆΠ½ΠΎΡΡΡ ΡΠΎΠ·Π΄Π°Π½ΠΈΡ ΡΠΌΠΈΡΡΠΈΠΎΠ½Π½ΡΡ
ΡΡΡΡΠΎΠΉΡΡΠ² Π½Π° ΠΏΠΎΠ»Π½ΠΎΡΡΡΡ Π½Π΅ΠΎΡΠ³Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΊΠ²Π°Π½ΡΠΎΠ²ΡΡ
ΡΠΎΡΠΊΠ°Ρ
ΠΌΠΎΠΆΠ΅Ρ Π±ΡΡΡ ΡΠ°ΡΡΠΌΠΎΡΡΠ΅Π½Π° Π΄Π»Ρ Co 80 C 20 , Tb 30 Fe 70 , Fe 86 Mn 13 C ΠΈ Co 50 Pd 50 ΠΏΠ»Π΅Π½ΠΎΠΊ. Π‘Π°ΠΌΠΎΠΎΡΠ³Π°Π½ΠΈΠ·Π°ΡΠΈΡ Π°ΡΠΎΠΌΠ½ΠΎΠΉΡΡΡΡΠΊΡΡΡΡ Co 80 C 20 , Tb 30 Fe 70 , Fe 86 Mn 13 C ΠΈ Co 50 Pd 50 Π² ΠΏΠ»Π΅Π½ΠΊΠ°Ρ
, ΠΊΠΎΡΠΎΡΡΠ΅ ΠΎΠ±Π»Π°Π΄Π°ΡΡ Π²ΡΡΠΎΠΊΠΈΠΌΠΈ Π·Π½Π°ΡΠ΅Π½ΠΈΡΠΌΠΈ ΠΊΠΎΠ½ΡΡΠ°Π½ΡΡ, ΠΏΠ΅ΡΠΏΠ΅Π½Π΄ΠΈΠΊΡΠ»ΡΡΠ½ΠΎΠΉ ΠΌΠ°Π³Π½ΠΈΡΠ½ΠΎΠΉ Π°Π½ΠΈΠ·ΠΎΡΡΠΎΠΏΠΈΠΈ (ΠΠΠ) K β₯ ~ 10
ΡΡΠ³/ΡΠΌ
, ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Ρ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠΉ Π΄ΠΈΡΡΠ°ΠΊΡΠΈΠΈ ΠΈ ΠΏΡΠΎΡΠ²Π΅ΡΠΈΠ²Π°ΡΡΠ΅ΠΉ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠΉ ΠΌΠΈΠΊΡΠΎΡΠΊΠΎΠΏΠΈΠΈ, Π²ΠΊΠ»ΡΡΠ°Ρ ΠΌΠ΅ΡΠΎΠ΄ ΠΈΠ·Π³ΠΈΠ±Π½ΡΡ
ΠΊΠΎΠ½ΡΡΡΠΎΠ². ΠΡΠΎΡΠ΅ΡΡΡ Π²Π·ΡΡΠ²Π½ΠΎΠΉ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠΈ Π°ΠΌΠΎΡΡΠ½ΡΡ
ΠΏΠ»Π΅Π½ΠΎΠΊ ΡΠΎΡΠΌΠΈΡΡΡΡ ΡΠ°Π·Π»ΠΈΡΠ½ΡΠ΅ Π΄ΠΈΡΡΠΈΠΏΠ°ΡΠΈΠ²Π½ΡΠ΅ ΡΡΡΡΠΊΡΡΡΡ ΠΈΠ· Π½Π°Π½ΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
Π·Π°ΡΠΎΠ΄ΡΡΠ΅ΠΉ. Π ΠΏΡΠ΅Π΄ΡΠ΄ΡΡΠΈΡ
ΡΠ°Π±ΠΎΡΠ°Ρ
[2, 3] Π±ΡΠ»ΠΎ ΠΏΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ ΠΏΠΎΡΠ»Π΅ ΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΠ·Π°ΡΠΈΠΈ (Π’ ΠΎΡΠΆΠΈΠ³Π° ~ 260-330 Β°C) Π°ΡΠΎΠΌΠ½Π°Ρ ΡΡΡΡΠΊΡΡΡΠ° Tb 30 Fe 70 , Co 80 C 20 , Fe 86 Mn 13 C ΠΈ Co 50 Pd 50 Π±ΡΠ»Π° ΠΎΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π° ΠΊΠ°ΠΊ ΡΠ΅ΡΡΠ°ΡΠ΄ΡΠΈΡΠ΅ΡΠΊΠΈ ΠΏΠ»ΠΎΡΠ½ΠΎ ΡΠΏΠ°ΠΊΠΎΠ²Π°Π½Π½Π°Ρ ΡΡΡΡΠΊΡΡΡΠ° Π€ΡΠ°Π½ΠΊΠ° ΠΠ°ΡΠΏΠ΅ΡΠ°. Π ΡΡΠΈΡ
ΡΠ°Π±ΠΎΡΠ°Ρ
ΡΡΡΡΠΊΡΡΡΠ½ΡΠ΅ ΠΌΠΎΠ΄Π΅Π»ΠΈ ΡΠΎΠ½ΠΊΠΈΡ
ΠΏΠ»Π΅Π½ΠΎΠΊ, ΡΠΎΠ·Π΄Π°Π½Π½ΡΠ΅ Π΄Π»Ρ ΠΌΠΈΠΊΡΠΎ-ΠΈ ΠΌΠ΅Π·ΠΎΠΌΠ°ΡΡΡΠ°Π±ΠΎΠ² ΡΠ²ΡΠ·ΡΠ²Π°ΡΡΡΡ Ρ ΠΌΠ°Π³Π½ΠΈΡΠ½ΡΠΌΠΈ ΠΈ ΠΎΠΏΡΠΈΡΠ΅ΡΠΊΠΈΠΌΠΈ ΡΠ²ΠΎΠΉΡΡΠ²Π°ΠΌΠΈ ΠΏΠ»Π΅Π½ΠΎΠΊ
Investigation of the Structure of Layered CopperβMolybdenum Samples Produced by Explosion Welding and Construction of a 3D Model of Fractal Elements of a New Structure
Π‘Π»ΠΎΠΈΡΡΡΠΉ ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡ ΠΌΠ΅Π΄Ρ-ΠΌΠΎΠ»ΠΈΠ±Π΄Π΅Π½
ΠΎΠ±Π»Π°Π΄Π°Π΅Ρ Π²ΡΡΠΎΠΊΠΎΠΉ ΡΠ²Π΅ΡΠ΄ΠΎΡΡΡΡ ΠΈ Π²ΡΡΠΎΠΊΠΎΠΉ
Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΡΠΎΠΉΠΊΠΎΡΡΡΡ, ΠΏΠΎΠ»ΡΡΠ΅Π½ ΡΠ²Π°ΡΠΊΠΎΠΉ Π²Π·ΡΡΠ²ΠΎΠΌ. ΠΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠ°ΠΊΠΎΠΉ ΡΠ΅Ρ
Π½ΠΎΠ»ΠΎΠ³ΠΈΠΈ ΠΏΠΎΠ»ΡΡΠ΅Π½ΠΈΡ
ΠΊΠΎΠΌΠΏΠΎΠ·ΠΈΡΠ° ΡΠ²ΡΠ·Π°Π½ΠΎ Ρ ΠΌΠ°Π»ΠΎΠΉ Π²Π·Π°ΠΈΠΌΠ½ΠΎΠΉ ΡΠ°ΡΡΠ²ΠΎΡΠΈΠΌΠΎΡΡΡΡ ΠΌΠ΅Π΄ΠΈ ΠΈ ΠΌΠΎΠ»ΠΈΠ±Π΄Π΅Π½Π°. ΠΡΠΈ ΡΠ²Π°ΡΠΊΠ΅ Π²Π·ΡΡΠ²ΠΎΠΌ
ΠΎΠ±ΡΠ°Π·ΠΎΠ²Π°Π½ΠΈΠ΅ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΠΏΡΠΎΠΈΡΡ
ΠΎΠ΄ΠΈΡ Π±Π»Π°Π³ΠΎΠ΄Π°ΡΡ ΠΊΡΠ°ΡΠΊΠΎΠ²ΡΠ΅ΠΌΠ΅Π½Π½ΠΎΠΌΡ ΡΠ°ΡΠΏΠ»Π°Π²Π»Π΅Π½ΠΈΡ ΠΈ ΠΎΡΠ΅Π½Ρ Π±ΡΡΡΡΠΎΠΌΡ
Π·Π°ΡΠ²Π΅ΡΠ΄Π΅Π²Π°Π½ΠΈΡ Π½Π° ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ½ΠΎΠΉ ΠΏΠΎΠ²Π΅ΡΡ
Π½ΠΎΡΡΠΈ. Π‘Π²Π°ΡΠΊΠ° Π²Π·ΡΡΠ²ΠΎΠΌ ΡΠΌΠ΅Π½ΡΡΠ°Π΅Ρ Π°ΠΊΡΠΈΠ²Π°ΡΠΈΠΎΠ½Π½ΡΠΉ Π±Π°ΡΡΠ΅Ρ
Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ΅Π°ΠΊΡΠΈΠΈ ΠΈ ΠΏΠΎΠ·Π²ΠΎΠ»ΡΠ΅Ρ ΠΏΠΎΠ»ΡΡΠ°ΡΡ ΠΈΠ½ΡΠ΅ΡΠΌΠ΅ΡΠ°Π»Π»ΠΈΠ΄Ρ ΠΈΠ· Π΄Π²ΡΡ
Π½Π΅Π²Π·Π°ΠΈΠΌΠΎΠ΄Π΅ΠΉΡΡΠ²ΡΡΡΠΈΡ
ΠΊΠΎΠΌΠΏΠΎΠ½Π΅Π½ΡΠΎΠ² ΡΠΎ ΡΠΊΠΎΡΠΎΡΡΡΡ, Π±Π»ΠΈΠ·ΠΊΠΎΠΉ ΠΊ ΡΠΊΠΎΡΠΎΡΡΠΈ ΠΏΠ΅ΡΠ΅ΠΊΠ»ΡΡΠ΅Π½ΠΈΡ Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΎΠΉ ΡΠ²ΡΠ·ΠΈ. Π€ΠΎΡΠΌΠΈΡΡΡΡΡΡ
ΠΏΡΠΎΠ΄ΡΠΊΡΡ ΠΌΠ΅Ρ
Π°Π½ΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅Π°ΠΊΡΠΈΠΉ Π² Π·ΠΎΠ½Π΅ ΠΊΠΎΠ½ΡΠ°ΠΊΡΠ° ΡΠ°Π·Π½ΠΎΡΠΎΠ΄Π½ΡΡ
ΠΌΠ΅ΡΠ°Π»Π»ΠΎΠ². ΠΡΠΎΠ΄ΡΠΊΡΡ
ΠΌΠ΅Ρ
Π°Π½ΠΎΡ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΡΠ΅Π°ΠΊΡΠΈΠΉ ΠΎΠ±Π½Π°ΡΡΠΆΠ΅Π½Ρ ΠΌΠ΅ΡΠΎΠ΄Π°ΠΌΠΈ ΡΠ΅Π½ΡΠ³Π΅Π½ΠΎΠ²ΡΠΊΠΎΠΉ Π΄ΠΈΡΡΠ°ΠΊΡΠΈΠΈ ΠΈ ΠΌΠΈΠΊΡΠΎΠ°Π½Π°Π»ΠΈΠ·Π°.
ΠΡΡΠΎΠΊΠΈΠ΅ ΡΠΊΠΎΡΠΎΡΡΠΈ ΡΠΈΠ·ΠΈΠΊΠΎ-Ρ
ΠΈΠΌΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΠΉ ΠΈΠ½ΠΈΡΠΈΠΈΡΡΡΡΡΡ Π½Π΅Π»ΠΈΠ½Π΅ΠΉΠ½ΡΠΌΠΈ Π²ΠΎΠ»Π½Π°ΠΌΠΈ
Π»ΠΎΠΊΠ°Π»ΠΈΠ·ΠΎΠ²Π°Π½Π½ΠΎΠΉ ΠΏΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΈ. ΠΠΎΠ»Π½Ρ ΠΏΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΈ Π²ΡΡΠ²Π»Π΅Π½Ρ ΠΏΠΎΡΠ»Π΅
ΡΡΠ°Π²Π»Π΅Π½ΠΈΡ ΡΠ»ΠΈΡΠ° ΠΏΠΎΠΏΠ΅ΡΠ΅ΡΠ½ΠΎΠ³ΠΎ ΡΡΠ΅Π·Π° ΠΌΠ½ΠΎΠ³ΠΎΡΠ»ΠΎΠΉΠ½ΠΎΠ³ΠΎ ΠΎΠ±ΡΠ°Π·ΡΠ° ΠΈ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΌΠΈΠΊΡΠΎΡΡΡΡΠΊΡΡΡΡ.
Π‘Π΄Π΅Π»Π°Π½Π° ΠΎΡΠ΅Π½ΠΊΠ° ΠΏΠΎΡΠΎΠΊΠ° ΡΠ½Π΅ΡΠ³ΠΈΠΈ Π½Π° ΠΎΠ±ΡΠ°Π·Π΅Ρ Π²ΠΎ Π²ΡΠ΅ΠΌΡ ΡΠ²Π°ΡΠΊΠΈ Π²Π·ΡΡΠ²ΠΎΠΌ, Π° ΡΠ°ΠΊΠΆΠ΅ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½ Π°Π½Π°Π»ΠΈΠ·
ΠΎΡΠΎΠ±Π΅Π½Π½ΠΎΡΡΠ΅ΠΉ ΡΡΡΡΠΊΡΡΡΡ Π·ΠΎΠ½ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΠΌΠ΅Π΄ΠΈ ΠΈ ΠΌΠΎΠ»ΠΈΠ±Π΄Π΅Π½Π°. ΠΠΏΡΠ΅Π΄Π΅Π»Π΅Π½Π° ΡΡΠ°ΠΊΡΠ°Π»ΡΠ½Π°Ρ ΡΠ°Π·ΠΌΠ΅ΡΠ½ΠΎΡΡΡ
Π³ΡΠ°Π½ΠΈΡΡ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΠΌΠ΅Π΄ΠΈ ΠΈ ΠΌΠΎΠ»ΠΈΠ±Π΄Π΅Π½Π°. ΠΠΎΡΡΡΠΎΠ΅Π½Π° ΠΊΠ»Π°ΡΡΠ΅ΡΠ½Π°Ρ ΠΌΠΎΠ΄Π΅Π»Ρ ΡΡΡΡΠΊΡΡΡΡ ΡΡΠ΅Π΄Π½Π΅Π³ΠΎ
ΠΏΠΎΡΡΠ΄ΠΊΠ° (ΠΌΠ΅Π·ΠΎΡΡΡΡΠΊΡΡΡΡ) Π·ΠΎΠ½ ΡΠΎΠ΅Π΄ΠΈΠ½Π΅Π½ΠΈΡ ΠΌΠ΅Π΄ΠΈ ΠΈ ΠΌΠΎΠ»ΠΈΠ±Π΄Π΅Π½Π°The layered copper-molybdenum composite has high hardness and high chemical resistance, obtained by explosion welding. The use of this technology for obtaining a composite is associated with a low mutual solubility of copper and molybdenum. In explosion welding, the formation of a joint occurs due to short-term melting and very rapid solidification at the contact surface. Explosive welding reduces the activation barrier of a chemical reaction and makes it possible to obtain intermetallic compounds from two non-interacting components at a rate close to the rate of chemical bond switching. Products of mechanochemical reactions are formed in the contact zone of dissimilar metals. The products of mechanochemical reactions were detected by Xβray diffraction and microanalysis. High rates of physicochemical transformations are initiated by nonlinear waves of localized plastic deformation. Waves of plastic deformation were revealed after etching of a thin section of a cross section of a multilayer sample and a study of the microstructure. An estimate of the energy flux to the sample during explosion welding was made, and an analysis was made of the structural features of the copper and molybdenum bonding zones. The fractal dimension of the interface between copper and molybdenum is determined. A cluster model of the medium order structure (mesostructure) of the zones of copper and molybdenum bonding is constructe
The Structure and Magnetic Properties of Fe-Mn-C Alloy
The structure of intergranular borders in Fe-Mn-C alloy has been investigated. Importance of
Fe-Mn-C alloys researches connecting with their wide use in machine industry as constructional
materials. In this work an attempt to find out the physical nature of high shock viscosity of Fe-Mn-C
alloy, mechanical and magnetic properties, calculation of intergranular borders electronic structure
is made.ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π° ΡΡΡΡΠΊΡΡΡΠ° ΠΌΠ΅ΠΆΠ·Π΅ΡΠ΅Π½Π½ΡΡ
Π³ΡΠ°Π½ΠΈΡ Π² ΡΠΏΠ»Π°Π²Π΅ Fe-Mn-C. ΠΠ°ΠΆΠ½ΠΎΡΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Fe-
Mn-C ΡΠΏΠ»Π°Π²ΠΎΠ² ΡΠ²ΡΠ·Π°Π½Π° Ρ ΠΈΡ
ΡΠΈΡΠΎΠΊΠΈΠΌ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π² ΠΌΠ°ΡΠΈΠ½ΠΎΡΡΡΠΎΠ΅Π½ΠΈΠΈ ΠΊΠ°ΠΊ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΎΠ½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ². ΠΠ΅Π»Π°Π΅ΡΡΡ ΠΏΠΎΠΏΡΡΠΊΠ° ΠΎΠ±ΡΡΡΠ½ΠΈΡΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΡΡ ΠΏΡΠΈΡΠΎΠ΄Ρ Π²ΡΡΠΎΠΊΠΎΠΉ ΡΠ΄Π°ΡΠ½ΠΎΠΉ Π²ΡΠ·ΠΊΠΎΡΡΠΈ
ΡΠΏΠ»Π°Π²Π° Fe-Mn-C, ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΠΌΠ°Π³Π½ΠΈΡΠ½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π°, ΡΠ°ΡΡΠ΅Ρ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ
ΠΌΠ΅ΠΆΠ·Π΅ΡΠ΅Π½Π½ΡΡ
Π³ΡΠ°Π½ΠΈΡ
Investigation of Structural-Phase States and Features of Plastic Deformation of the Austenitic Precipitation-Hardening Co-Ni-Nb Alloy
This article presents the results of investigation of the influence of holding temperature during the quenching process on the microstructure and superplasticity of the Co-Ni-Nb alloy. Temperature-strain rate intervals of the deformation of the superplasticity effects are stated. The optimal regimes of the preliminary treatment by quenching and rolling as well as the routine of the superplastic deformation of the Co-Ni-Nb alloy are defined. The interval of the temperatures of the precipitation, morphology, composition, type and parameters of the lattice of the secondary phase, which appears after the annealing + rolling (to 90%) Co-Ni-Nb alloy, are determined
The Structure and Magnetic Properties of Fe-Mn-C Alloy
The structure of intergranular borders in Fe-Mn-C alloy has been investigated. Importance of
Fe-Mn-C alloys researches connecting with their wide use in machine industry as constructional
materials. In this work an attempt to find out the physical nature of high shock viscosity of Fe-Mn-C
alloy, mechanical and magnetic properties, calculation of intergranular borders electronic structure
is made.ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π° ΡΡΡΡΠΊΡΡΡΠ° ΠΌΠ΅ΠΆΠ·Π΅ΡΠ΅Π½Π½ΡΡ
Π³ΡΠ°Π½ΠΈΡ Π² ΡΠΏΠ»Π°Π²Π΅ Fe-Mn-C. ΠΠ°ΠΆΠ½ΠΎΡΡΡ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ Fe-
Mn-C ΡΠΏΠ»Π°Π²ΠΎΠ² ΡΠ²ΡΠ·Π°Π½Π° Ρ ΠΈΡ
ΡΠΈΡΠΎΠΊΠΈΠΌ ΠΈΡΠΏΠΎΠ»ΡΠ·ΠΎΠ²Π°Π½ΠΈΠ΅ΠΌ Π² ΠΌΠ°ΡΠΈΠ½ΠΎΡΡΡΠΎΠ΅Π½ΠΈΠΈ ΠΊΠ°ΠΊ ΠΊΠΎΠ½ΡΡΡΡΠΊΡΠΈΠΎΠ½Π½ΡΡ
ΠΌΠ°ΡΠ΅ΡΠΈΠ°Π»ΠΎΠ². ΠΠ΅Π»Π°Π΅ΡΡΡ ΠΏΠΎΠΏΡΡΠΊΠ° ΠΎΠ±ΡΡΡΠ½ΠΈΡΡ ΡΠΈΠ·ΠΈΡΠ΅ΡΠΊΡΡ ΠΏΡΠΈΡΠΎΠ΄Ρ Π²ΡΡΠΎΠΊΠΎΠΉ ΡΠ΄Π°ΡΠ½ΠΎΠΉ Π²ΡΠ·ΠΊΠΎΡΡΠΈ
ΡΠΏΠ»Π°Π²Π° Fe-Mn-C, ΠΌΠ΅Ρ
Π°Π½ΠΈΡΠ΅ΡΠΊΠΈΠ΅ ΠΈ ΠΌΠ°Π³Π½ΠΈΡΠ½ΡΠ΅ ΡΠ²ΠΎΠΉΡΡΠ²Π°, ΡΠ°ΡΡΠ΅Ρ ΡΠ»Π΅ΠΊΡΡΠΎΠ½Π½ΠΎΠΉ ΡΡΡΡΠΊΡΡΡΡ
ΠΌΠ΅ΠΆΠ·Π΅ΡΠ΅Π½Π½ΡΡ
Π³ΡΠ°Π½ΠΈΡ
Regularities of Formation of the Ordered Structures in Refractory Metals at Ion Implantation
Is shown, that the character of structural - phase transformations in tungsten and tantalum at ion
implantation by the elements of the interstitial phase is defined, in the main, by the size factor, i.e. by
the ratio of the atomic sizes of implanted elements and atoms of metal. The researches are carried out
on tungsten and tantalum monocrystals at implantation by ions of , N, O, P.ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Ρ
Π°ΡΠ°ΠΊΡΠ΅Ρ ΡΡΡΡΠΊΡΡΡΠ½ΠΎ-ΡΠ°Π·ΠΎΠ²ΡΡ
ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΠΉ Π² Π²ΠΎΠ»ΡΡΡΠ°ΠΌΠ΅ ΠΈ ΡΠ°Π½ΡΠ°Π»Π΅ ΠΏΡΠΈ
ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΈ ΠΈΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ°ΠΌΠΈ, ΠΎΠ±ΡΠ°Π·ΡΡΡΠΈΠΌΠΈ ΡΠ°Π·Ρ Π²Π½Π΅Π΄ΡΠ΅Π½ΠΈΡ, Π² ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠΌ, ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅ΡΡΡ
ΡΠ°Π·ΠΌΠ΅ΡΠ½ΡΠΌ ΡΠ°ΠΊΡΠΎΡΠΎΠΌ, ΠΊΠΎΡΠΎΡΡΠΉ Π½Π°Ρ
ΠΎΠ΄ΡΡ ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ΠΌ Π°ΡΠΎΠΌΠ½ΡΡ
ΡΠ°Π΄ΠΈΡΡΠΎΠ² ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΠΎΠ²Π°Π½Π½ΠΎΠ³ΠΎ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ° ΠΊ Π°ΡΠΎΠΌΠ½ΠΎΠΌΡ ΡΠ°Π΄ΠΈΡΡΡ ΠΌΠ΅ΡΠ°Π»Π»Π°. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΠ²Π΅Π΄Π΅Π½Ρ Π½Π° ΠΌΠΎΠ½ΠΎΠΊΡΠΈΡΡΠ°Π»Π»ΠΈΡΠ΅ΡΠΊΠΈΡ
ΠΎΠ±ΡΠ°Π·ΡΠ°Ρ
Π²ΠΎΠ»ΡΡΡΠ°ΠΌΠ° ΠΈ ΡΠ°Π½ΡΠ°Π»Π°, ΠΈΠΌΠΏΠ»Π°Π½ΡΠΈΡΠΎΠ²Π°Π½Π½ΡΡ
ΠΈΠΎΠ½Π°ΠΌΠΈ N, O, P
Regularities of Formation of the Ordered Structures in Molybdenum at Ion Implantation
ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Ρ
Π°ΡΠ°ΠΊΡΠ΅Ρ ΡΡΡΡΠΊΡΡΡΠ½ΠΎ-ΡΠ°Π·ΠΎΠ²ΡΡ
ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΠΉ Π² ΠΌΠΎΠ»ΠΈΠ±Π΄Π΅Π½Π΅ ΠΏΡΠΈ ΠΈΠΎΠ½Π½ΠΎΠΉ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΈ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ°ΠΌΠΈ ΡΠ°Π·Ρ Π²Π½Π΅Π΄ΡΠ΅Π½ΠΈΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅ΡΡΡ Π² ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠΌ ΠΏΠΎ ΡΠ°Π·ΠΌΠ΅ΡΠ½ΠΎΠΌΡ ΡΠ°ΠΊΡΠΎΡΡ, Ρ. Π΅. ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ΠΌ Π°ΡΠΎΠΌΠ½ΡΡ
ΡΠ°Π·ΠΌΠ΅ΡΠΎΠ² Π²Π½Π΅Π΄ΡΠ΅Π½Π½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² ΠΈ Π°ΡΠΎΠΌΠΎΠ² ΠΌΠ΅ΡΠ°Π»Π»Π°. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈΡΡ Π½Π° ΠΌΠΎΠ½ΠΎΠΊΡΠΈΡΡΠ°Π»Π»Π°Ρ
ΠΌΠΎΠ»ΠΈΠ±Π΄Π΅Π½Π° ΠΏΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΈ ΠΈΠΎΠ½Π°ΠΌΠΈ Ar, C, N, O, B, Si, P, S.Is shown, that the character of structural-phase transformations in molybdenum at ion implantation by the elements of the interstitial phase is defined, in the main, by the size factor, i.e. by the ratio of the atomic sizes of implanted elements and atoms of metal. The researches are carried out on molybdenum monocrystals at implantation by ions of Ar, C, N, O, B, Si, P, S
The Structure of Lenticular Crystals Formed in Plastically Deformed Titanium Nickelide
Samples of Ni51Ti49 alloy subjected to plastic deformation have been studied. The microstructure was studied by transmission electron microscopy and microdifraction on a Hitachi 7700 microscope. The phase composition of the samples was determined by X-ray diffraction in a Bruker diffractometer. Magnetometric measurements were performed in an induction petlescope. Lenticular crystals (of the Ni2Ti3 phase containing bendβextinction contours indicating a significant curvature of the crystal lattice appearing in the localization zones of plastic deformation) were found in the deformation localization zones. It was revealed that the samples are non-magnetic before deformation, but after plastic deformation, they have non-zero magnetization, which is associated with the emergence of new phases. Under conditions of local curvature of the crystal lattice, special structural states arise in zones of increased interatomic distances, which increase the number of degrees of freedom in the deformable solid and thus contribute to the redistribution of the components of the initial solid solution and the appearance of new phases. It was shown that the crystalline structure of lenticular crystals is a phase constructed of a spinel structural type with a crystal lattice parameter of 11.53 Β± 0.03 Γ
The Study of the Flow Stress During Superplastic Deformation Co-Ni-Nb Alloy
Π ΡΡΠ°ΡΡΠ΅ ΠΎΠΏΠΈΡΠ°Π½Π° ΠΌΠ΅ΡΠΎΠ΄ΠΈΠΊΠ° Π΄Π»Ρ ΠΎΡΠ΅Π½ΠΊΠΈ ΠΈΡΡΠΈΠ½Π½ΡΡ
Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΠΉ ΡΠ΅ΡΠ΅Π½ΠΈΡ ΡΠΊΡΠΏΠ΅ΡΠΈΠΌΠ΅Π½ΡΠ°Π»ΡΠ½ΡΠΌ
ΠΌΠ΅ΡΠΎΠ΄ΠΎΠΌ ΠΏΡΠΈ ΡΠ²Π΅ΡΡ
ΠΏΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΈ. ΠΡΠΎΠ²Π΅Π΄Π΅Π½Ρ ΠΈΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΈΠ·ΠΌΠ΅Π½Π΅Π½ΠΈΡ ΠΈΡΡΠΈΠ½Π½ΡΡ
Π½Π°ΠΏΡΡΠΆΠ΅Π½ΠΈΠΉ ΠΏΡΠΈ ΡΠ²Π΅ΡΡ
ΠΏΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΈ Π² ΠΎΠΏΡΠΈΠΌΠ°Π»ΡΠ½ΠΎΠΌ ΡΠ΅ΠΆΠΈΠΌΠ΅ Π΄ΠΈΡΠΏΠ΅ΡΡΠΈΠΎΠ½Π½ΠΎ-
ΡΠ²Π΅ΡΠ΄Π΅ΡΡΠ΅Π³ΠΎ ΡΠΏΠ»Π°Π²Π° Π½Π° ΠΊΠΎΠ±Π°Π»ΡΡ-Π½ΠΈΠΊΠ΅Π»Ρ-Π½ΠΈΠΎΠ±ΠΈΠ΅Π²ΠΎΠΉ ΠΎΡΠ½ΠΎΠ²Π΅. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½Π° ΠΌΠΈΠΊΡΠΎΡΡΡΡΠΊΡΡΡΠ°
ΡΠΏΠ»Π°Π²Π° Π² Π·Π°Π²ΠΈΡΠΈΠΌΠΎΡΡΠΈ ΠΎΡ ΡΡΠ΅ΠΏΠ΅Π½ΠΈ ΡΠ²Π΅ΡΡ
ΠΏΠ»Π°ΡΡΠΈΡΠ΅ΡΠΊΠΎΠΉ Π΄Π΅ΡΠΎΡΠΌΠ°ΡΠΈΠΈThe article describes an experimental method for estimating the true flow stress at superplastic
deformation. Studied changes of the true stress at superplastic deformation in optimally mode the
precipitation-hardening alloy of cobalt-nickel-niobium. The microstructure of the alloy according
to the extent of superplastic deformatio
Regularities of Formation of the Ordered Structures in Molybdenum at Ion Implantation
ΠΠΎΠΊΠ°Π·Π°Π½ΠΎ, ΡΡΠΎ Ρ
Π°ΡΠ°ΠΊΡΠ΅Ρ ΡΡΡΡΠΊΡΡΡΠ½ΠΎ-ΡΠ°Π·ΠΎΠ²ΡΡ
ΠΏΡΠ΅Π²ΡΠ°ΡΠ΅Π½ΠΈΠΉ Π² ΠΌΠΎΠ»ΠΈΠ±Π΄Π΅Π½Π΅ ΠΏΡΠΈ ΠΈΠΎΠ½Π½ΠΎΠΉ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΈ ΡΠ»Π΅ΠΌΠ΅Π½ΡΠ°ΠΌΠΈ ΡΠ°Π·Ρ Π²Π½Π΅Π΄ΡΠ΅Π½ΠΈΡ ΠΎΠΏΡΠ΅Π΄Π΅Π»ΡΠ΅ΡΡΡ Π² ΠΎΡΠ½ΠΎΠ²Π½ΠΎΠΌ ΠΏΠΎ ΡΠ°Π·ΠΌΠ΅ΡΠ½ΠΎΠΌΡ ΡΠ°ΠΊΡΠΎΡΡ, Ρ. Π΅. ΠΎΡΠ½ΠΎΡΠ΅Π½ΠΈΠ΅ΠΌ Π°ΡΠΎΠΌΠ½ΡΡ
ΡΠ°Π·ΠΌΠ΅ΡΠΎΠ² Π²Π½Π΅Π΄ΡΠ΅Π½Π½ΡΡ
ΡΠ»Π΅ΠΌΠ΅Π½ΡΠΎΠ² ΠΈ Π°ΡΠΎΠΌΠΎΠ² ΠΌΠ΅ΡΠ°Π»Π»Π°. ΠΡΡΠ»Π΅Π΄ΠΎΠ²Π°Π½ΠΈΡ ΠΏΡΠΎΠ²ΠΎΠ΄ΠΈΠ»ΠΈΡΡ Π½Π° ΠΌΠΎΠ½ΠΎΠΊΡΠΈΡΡΠ°Π»Π»Π°Ρ
ΠΌΠΎΠ»ΠΈΠ±Π΄Π΅Π½Π° ΠΏΡΠΈ ΠΈΠΌΠΏΠ»Π°Π½ΡΠ°ΡΠΈΠΈ ΠΈΠΎΠ½Π°ΠΌΠΈ Ar, C, N, O, B, Si, P, S.Is shown, that the character of structural-phase transformations in molybdenum at ion implantation by the elements of the interstitial phase is defined, in the main, by the size factor, i.e. by the ratio of the atomic sizes of implanted elements and atoms of metal. The researches are carried out on molybdenum monocrystals at implantation by ions of Ar, C, N, O, B, Si, P, S