Results 11 to 20 of about 7,320 (303)

Formation mechanism of gradient structure of aluminum matrix composite under static magnetic field during directional solidification

open access: yesJournal of Materials Research and Technology, 2020
Aluminum matrix composite, as a new electronic packaging material, has attracted the attention of researchers. Effect of magnetic field on gradient structure of aluminum matrix composites (Al-21 wt.%Si and Al-40 wt.%Cu) has been investigated during ...
Shaodong Hu   +6 more
doaj   +2 more sources

Thermodynamic Assessment of Mushy Zone in Directional Solidification

open access: yesArchives of Foundry Engineering, 2015
Solidification of AlSiFe alloys was studied using a directional solidification facility and the CALPHAD technique was applied to calculate phase diagrams and to predict occurring phases.
Mikołajczak P., Ratke L.
doaj   +3 more sources

Separation of CsF from FLiNaK molten salt via directional solidification

open access: yesHe jishu
BackgroundFluoride molten salt servers as a coolant and fuel carrier in molten salt reactors (MSRs). Over time of operation, fuel composition of MSR includes uranium, thorium, fission products, and carrier salt.
ZHOU Jinhao   +3 more
doaj   +2 more sources

Directional Solidification of Ledeburite

open access: yesArchives of Foundry Engineering, 2013
Abstract Directional solidification of ledeburite was realised out using a Bridgman’s device. The growth rate for movement sample v=83.3 μm/s was used. In one sample the solidification front was freezing. The value of temperature gradient in liquid at the solidification front was determined.
Trepczyńska-Łent, M.
openaire   +2 more sources

Directional solidification in two and three dimensions

open access: yesPhysical Review Letters, 1993
A symmetric phase-field model is used to study directional solidification in two and three dimensions. Numerical evidence of tip-splitting, breathing modes, solitary modes, and other non-steady-state behavior is seen in 2D. A simple model for the breathing modes is proposed. Finally, 3D simulations indicate a hexagonal ordering of cells.
Grossman, Bruno   +3 more
openaire   +5 more sources

Numerical simulation on directional solidification of Al-Ni-Co alloy based on FEM [PDF]

open access: yesChina Foundry, 2010
The ratio, of the temperature gradient at the solidification front to the solidification rate of solid-liquid interface, plays a large part in columnar grain growth.
Yang Zhili, Chen Dengming, Tian Shilong
doaj   +1 more source

Rotating Directional Solidification of Ternary Eutectic Microstructures in Bi-In-Sn: A Phase-Field Study. [PDF]

open access: yesMaterials (Basel), 2022
For the first time, the experimental processing condition of a rotating directional solidification is simulated in this work, by means of a grand-potential-based phase-field model.
Dargahi Noubary K, Kellner M, Nestler B.
europepmc   +2 more sources

Numerical simulation of the directional solidification process with multi-shell mold being gradually immersed in water

open access: yesJournal of Materials Research and Technology, 2022
In order to improve the heat insulation effect, a multi-shell mold structure can be applied in directional solidification. As this kind of mold is gradually immersed into water, higher temperature gradient will be formed between the upper and the bottom ...
Jingying Xu   +4 more
doaj   +1 more source

Effect of growth rate on microstructure evolution in directionally solidified Ti–47Al alloy

open access: yesHeliyon, 2022
The microstructures and morphologies of directionally solidified Ti–47Al alloys with different growth rates ranging from 1 to 200 μm/s were investigated using the Bridgman directionally solidified method.
Tong Liu   +7 more
doaj   +1 more source

Onset of sidebranching in directional solidification [PDF]

open access: yesPhysical Review E, 2010
We use a computationally efficient phase-field formulation [B. Echebarria, Phys. Rev. E 70, 061604 (2004)] to investigate the origin and dynamics of sidebranching in directional solidification for realistic parameters of a dilute alloy previously studied experimentally [M. Gorgelin and A. Pocheau, Phys. Rev. E 57, 3189 (1998)].
Echebarría Domínguez, Blas   +2 more
openaire   +4 more sources

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