Results 11 to 20 of about 30,563 (351)

Comparative study of gravity effects in directional solidification of Al-3.5 wt.% Si and Al-10 wt.% Cu alloys [PDF]

open access: goldnpj Microgravity
Directional solidification experiments of Al-3.5 wt.% Si and Al-10 wt.% Cu alloys were conducted under gravity and microgravity conditions using a 50-m-high drop tube.
Guiyuan Zhang   +3 more
doaj   +4 more sources

Microstructure Evolution and Mechanical Properties of FeCoCrNiCuTi0.8 High-Entropy Alloy Prepared by Directional Solidification [PDF]

open access: yesEntropy, 2020
A CoCrCuFeNiTi0.8 high-entropy alloy was prepared using directional solidification techniques at different withdrawal rates (50 μm/s, 100 μm/s, 500 μm/s). The results showed that the microstructure was dendritic at all withdrawal rates. As the withdrawal
Yiku Xu   +4 more
doaj   +2 more sources

Quasiperiodic Tip Splitting in Directional Solidification [PDF]

open access: yesPhysical Review Letters, 2001
We report experimental results on the tip splitting dynamics of seaweed growth in directional solidification of succinonitrile alloys with poly(ethylene oxide) or acetone as solutes.
B. Utter   +19 more
core   +4 more sources

The solidification characteristics of near rapid and supercooling directional solidification [PDF]

open access: yesScience and Technology of Advanced Materials, 2001
In the comparison of the solidification characteristics of supercooling directional solidification (SDS) with constrained directional solidification (DS) and with the consideration of the inheritance of supercooled melt, the SDS technique established with the combination of melt supercooling and traditional DS was proposed.
Hengzhi Fu, Faqin Xie
exaly   +2 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   +2 more sources

Preliminary science report on the directional solidification of hypereutectic cast iron during KC-135 low-G maneuvers [PDF]

open access: green, 1983
An ADSS-P directional solidification furnace was reconfigured for operation on the KC-135 low-g aircraft. The system offers many advantages over quench ingot methods for study of the effects of sedimentation and convection on alloy formation.
Curreri, P. A.   +2 more
core   +2 more sources

Influence of gases on casting expansion processes during their hardening

open access: yesЛитьë и металлургия, 2023
It has been experimentally shown that directional solidification of water and bismuth in glass and quartz cylindrical forms does not result in expansion of the castings perpendicular to the solidification direction.
E. I. Marukovich   +2 more
doaj   +1 more source

Global heat transfer model and dynamic ray tracing algorithm for complex multiple turbine blades of Ni-based superalloys in directional solidification process [PDF]

open access: yesChina Foundry, 2019
High-quality solidification microstructure during directional solidification relies on precise temperature gradient control, so accurate calculation of the temperature field is critical.
Wen Wang, Jian-xin Zhou, Zhao Guo
doaj   +1 more source

The Effect of the Cooling Rate on the Microstructure and Microsegregation: An Experimental and Numerical Investigation of Solidification in Hypoperitectic Cu − 20 wt.% Sn Alloy [PDF]

open access: yesMaterials Research, 2020
Hypoperitectic Cu − 20 wt.% Sn alloy was solidified under different cooling rates and solidification growths using directional solidification system.
Késsia Gomes Paradela   +5 more
doaj   +1 more source

Study on the solutal convection during dendrite growth of superalloy under directional solidification condition

open access: yesJournal of Materials Research and Technology, 2023
The solutal convection is able to affect the dendrite growth and solute distribution during directional solidification. The solutal convection is raised by the solute difference-caused buoyancy.
Yongjia Zhang   +5 more
doaj   +1 more source

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