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- Title
Mechanism of Filling and Feeding of Thin-Walled Structures during Gravity Casting.
- Authors
Faguo Li; Jiao Zhang; Fenggang Bian; Yanan Fu; Yanling Xue; Fucheng Yin; Yu Xie; Yi Xu; Baode Sun
- Abstract
The filling and feeding of thin-walled structures in metal castings pose significant difficulties in manufacturing aerospace structural materials. Samples containing 2 mm and 5 mm thin-walled structures were designed to study the kinetics of filling. The microstructural evolution of the solidification of thin-walled structures was studied with synchrotron X-radiation imaging. The formation of dendritic networks and the isotherm profiles of samples of different thickness were examined. The experimental results showed solidification microstructures of 2 mm and 5 mm thin-walled parts containing elongated equiaxed grains and normal equiaxed grains, respectively. The filling and feeding abilities of thin-walled parts were found to depend more on the wall thickness than on the pouring temperature.
- Subjects
ALUMINUM alloys; THIN-walled structures; SOLIDIFICATION; MICROSTRUCTURE; CASTING (Manufacturing process)
- Publication
Materials (1996-1944), 2015, Vol 8, Issue 6, p3701
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma8063701