Results 11 to 20 of about 5,766 (227)

Effects of High-Density Electric Current Pulse on the Undercooling of Fe-B Eutectic Alloy Melt

open access: yesAdvances in Materials Science and Engineering, 2018
The solidification microstructure of Fe-B eutectic alloy under high undercooling and high-density electric current pulse (ECP) was investigated with the technique of molten glass slag purification combined with cyclical superheating and the ECP treatment.
Teng Ma   +4 more
doaj   +2 more sources

Bridging the Cold Divide: Mapping and Mitigating Undercooling Inequities in Southern China’s Rural Homes

open access: yesBuildings
The risk of indoor undercooling during winter in rural southern China poses a significant challenge to health and equity, with substantial spatial disparities driven by climatic variation and the absence of heating infrastructure.
Leyan Yang, Zhibiao Chen, Yukai Zou
doaj   +2 more sources

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   +4 more sources

Linking crystal shape and dynamic undercooling: a new framework for inferring magmatic crystallization histories. [PDF]

open access: yesContrib Mineral Petrol
UNLABELLED: Magmas contain crystals exhibiting diverse shapes and sizes, yet the relationship between crystal shape (specifically aspect ratio) and undercooling ([Formula: see text]), the driving force for crystallization, remains poorly constrained ...
Lindoo A   +7 more
europepmc   +10 more sources

Saffman-Taylor fingers with kinetic undercooling [PDF]

open access: yes, 2015
The mathematical model of a steadily propagating Saffman-Taylor finger in a Hele-Shaw channel has applications to two-dimensional interacting streamer discharges which are aligned in a periodic array. In the streamer context, the relevant regularisation
Gardiner, Bennett P.J.   +3 more
core   +2 more sources

Dendritic branching patterns in platforms of complex Ni-based single crystal castings [PDF]

open access: yesChina Foundry, 2019
Dendritic branching patterns at variable cross-sections in Ni-based single crystal (SX) castings of different generations were investigated using optical microscope (OM), electro probe microanalyzer (EPMA), differential scanning calorimeter (DSC ...
Min Huang1, *Gong Zhang1, Dong Wang1
doaj   +1 more source

Investigation on nonequilibrium crystallization of highly undercooled Cu–Ni–Co alloys

open access: yesJournal of Materials Research and Technology, 2023
Deep undercooling rapid solidification experiments of Cu–Ni–Co alloys were carried out using the molten glass purification cycle superheat method. 130 K, 177 K and 277 K undercooling degrees were obtained and analysed for Cu55Ni43Co2 alloy.
Yongchao Hao   +5 more
doaj   +1 more source

Simulation of Undercooling Influence on Shape and Velocity of Seawater Freezing Process Using Phase Field Method

open access: yesShanghai Jiaotong Daxue xuebao, 2021
In order to study the microcosmic mechanism of ice formation in ship structure, a numerical simulation is conducted. Based on the Wheeler phase field model, the finite difference method is used to simulate the solidification shape of seawater at ...
BAI Xu, YANG Sujie
doaj   +1 more source

Grain refinement in solidification of undercooled Fe2B intermetallic compound alloy

open access: yesAIP Advances, 2023
Spontaneous grain refinement widely occurs in solidification of highly undercooled solid solution alloys, but the case in stoichiometric intermetallic compound alloys is seldom concerned.
Changsong Ma, Lin Yang, Jinfu Li
doaj   +1 more source

In situ observation of solidification velocity and refined structure transformation in nonequilibrium solidification of highly undercooled and single-phase alloys

open access: yesJournal of Materials Research and Technology, 2022
In this work, the relationship between the critical undercooling ΔT∗ and nonequilibrium solidification velocity of single-phase alloys as well as the refined structure transformation mechanism have been fully investigated.
Yukang An   +6 more
doaj   +1 more source

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