Results 61 to 70 of about 18,901 (265)

Secondary transformations in the structure of grey cast iron

open access: yesЛитьë и металлургия
A nanostructural mechanism of secondary transformations in the structure of gray cast iron is proposed. First, structureforming nanocrystals of austenite, ferrite, cementite and graphite are formed from elementary nanocrystals of iron and graphite, free ...
E. I. Marukovich   +2 more
doaj   +1 more source

Structure and kinetic regulations of PP-R/PPH-g-MAH/Al(OH)3 based nanocomposites crystallization [PDF]

open access: yesPolyolefins Journal
The article presents the results of studies of the influence of aluminum hydroxide concentration on the crystallization process regularities of nanocomposites based on compatibilized polypropylene random copolymer and aluminum hydroxide (PP-R/PPH-g-MAH ...
Fatima Mustafayeva   +2 more
doaj   +1 more source

Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators

open access: yesAdvanced Engineering Materials, EarlyView.
A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad   +6 more
wiley   +1 more source

NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING OF STEEL

open access: yesЛитьë и металлургия, 2016
It is shown that melting and molding of steel are difficult physical and chemical nanostructural processes. In them the major role is played by the centers of crystallization of dendrites of austenite, austenite nanocrystals, the dissolved and adsorbed ...
V. Yu. Stetsenko
doaj  

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

THE INFLUENCE OF ACTIVE SURFACE CENTERS ON REACTIVITY OF MINERAL ADDITIVES

open access: yesСовременная наука и инновации, 2022
The paper presents the results of investigations of active centers of crystallization of mineral additives in the form of finely divided fillers formed during stripping and characterizing their reactivity in ...
Said-Alvi Y. Murtazaev   +3 more
doaj  

Enhancing Low‐Temperature Performance of Sodium‐Ion Batteries via Anion‐Solvent Interactions

open access: yesAdvanced Functional Materials, EarlyView.
DOL is introduced into electrolytes as a co‐solvent, increasing slat solubility, ion conductivity, and the de‐solvent process, and forming an anion‐rich solvent shell due to its high interaction with anion. With the above virtues, the batteries using this electrolyte exhibit excellent cycling stability at low temperatures. Abstract Sodium‐ion batteries
Cheng Zheng   +7 more
wiley   +1 more source

HYPEREUTECTIC SILUMIN.NANOSTRUCTURAL PROCESSES OF MELTING AND MOULDING

open access: yesЛитьë и металлургия, 2017
It is shown that melting and molding of hypereutectic silumin are complicated physical and chemical nanostructural processes. The major part at these processes is played by the centers of crystallization of primary crystals of silicon, silicon ...
V. Yu. Stetsenko
doaj  

On the crystallization of austenitic carbide eutectic of chromium cast iron

open access: yesЛитьë и металлургия
Crystallization of austenitic carbide eutectic of chromium cast iron is a nanostructural process in which iron, graphite and chromium nanocrystals play a major role.
E. I. Marukovich   +2 more
doaj   +1 more source

Influence of Chemical Composition on Concentration Undercooling of Structural Steels [PDF]

open access: yesArchives of Foundry Engineering
The article studies the undercooling of steel melt around the solid particles, which is one of the main factors determining the rates of nucleation and growth of crystallization centers. Particularly, the effect of chemical composition on this factor for
Y. Aftandiliants   +3 more
doaj   +1 more source

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