Results 21 to 30 of about 30,563 (351)
Directional solidification with interface dissipation [PDF]
Physical Review A, 1991 The front dynamics during directional solidification of a dilute binary mixture with noninstantaneous interface kinetic attachment is investigated in the weakly and highly nonlinear regimes. In the linear regime we find that, even for small enough kinetic coefficient, the most unstable mode is appreciably modified. With the help of multiscale analysis,
Saito, Y. +3 more
openaire +3 more sources
Preparation and Growth Characterization of Al2Cu Phase Crystal with the Single Orientation Under Directional Solidification [PDF]
Materials Research, 2018 Through decreasing the sample size, the regular faceted rectangular Al2Cu phase crystal was prepared under directional solidification. Effects of sample size on the microstructure morphologies and orientations of intermetallic Al2Cu phase crystal growth ...
Ka Gao +7 more
doaj +1 more source
Journal of Materials Research and Technology, 2023 The removal of Fe from Al alloy scraps is the main challenge for their recycling because the excess of Fe usually forms needle-like phases in the Al alloys, which reduces their mechanical properties.
Yakun Zhang +3 more
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Transient convective instabilities in directional solidification [PDF]
, 2010 We study the convective instability of the melt during the initial transient in a directional solidification experiment in a vertical configuration. We obtain analytically the dispersion relation, and perform an additional asymptotic expansion for large ...
Meca, Esteban, Ramirez-Piscina, Laureano
core +1 more source
Crystals, 2021 Control of solidification structure and crystallographic texture during metal additive manufacturing is a challenging work which attracts the increasing interest of researchers.
Xingbo Liu +3 more
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npj Microgravity, 2023 We review recent in situ solidification experiments using nonfaceted model transparent alloys in science-in-microgravity facilities onboard the International Space Station (ISS), namely the Transparent Alloys (TA) apparatus and the Directional ...
S. Akamatsu +13 more
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Xibei Gongye Daxue Xuebao, 2022 With the rapid development of aerospace and other high-tech fields, a new generation of high perfor-mance, high efficiency ultrahigh temperature structural materials and their preparation technologies increasingly becomes the focus of the development of ...
SHEN Zhonglin +4 more
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Transient Directional Solidification of Cast Iron: Microstructure Formation, Columnar to Equiaxed Transition and Hardness [PDF]
Materials Research, 2016 A number of applications may require cast iron. Engine cylinder blocks, flywheels, gearbox cases, machine-tool bases may be manufactured by using grey cast iron while bearing surfaces with white cast iron. Thus, understanding the solidification behaviour
Thiago Sartorello Spinola +1 more
doaj +2 more sources
Numerical Simulation of Freckle Defects in Nickel based Superalloys
Journal of Harbin University of Science and Technology, 2020 In order to deeply understand the formation characteristics of freckle defects in the process of directional solidification of nickelbased superalloy, three major equations of fluid mechanics were used to simulate the formation of freckles during the ...
LIU Dong rong, REN Ying, GUO Er jun
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High Temperature Materials and Processes, 2018 Distribution behavior of B and P during directional solidification of Al-20Si, Al-30Si and Al-40Si alloys has been investigated. Macrostructure of the Al-Si alloy ingots and concentration profile of elements B and P reveal that the elements segregate to ...
Bai Xiaolong +4 more
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