One-dimensional plate-like dendritic model is built to describe the microsegregation during binary alloy solidification with solid back-diffusion and complete diffusion in the liquid. The specialties of microsegregation for Al-Cu and Fe-C alloys are analyzed and compared by simulation. Moreover, the microsegregation model is developed to couple with the macro solidification model which simulates the heat and mass transfer with phase change for the new Inverse Casting Technology. The numerical results are proven to be in good agreement with experimental data. It shows that the microsegregation numerical model can reflect the micro mass transfer accurately and can be coupled reliably with macro heat and mass transfer model for solidification. In addition, both the micro and macro investigation shows that the solidification of Fe-C alloy progresses almost in equilibrium.
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ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems
July 17–22, 2005
San Francisco, California, USA
Conference Sponsors:
- Heat Transfer Division and Electronic and Photonic Packaging Division
ISBN:
0-7918-4733-0
PROCEEDINGS PAPER
The Effects of Micro Scale Solute Redistribution on the Macro Scale Heat and Mass Transfer During Casting Processes
Hong Nie,
Hong Nie
University of Science and Technology – Beijing, Beijing, China
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Yan-Hui Feng,
Yan-Hui Feng
University of Science and Technology – Beijing, Beijing, China
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Xin-Xin Zhang
Xin-Xin Zhang
University of Science and Technology – Beijing, Beijing, China
Search for other works by this author on:
Hong Nie
University of Science and Technology – Beijing, Beijing, China
Yan-Hui Feng
University of Science and Technology – Beijing, Beijing, China
Xin-Xin Zhang
University of Science and Technology – Beijing, Beijing, China
Paper No:
HT2005-72187, pp. 121-128; 8 pages
Published Online:
March 9, 2009
Citation
Nie, H, Feng, Y, & Zhang, X. "The Effects of Micro Scale Solute Redistribution on the Macro Scale Heat and Mass Transfer During Casting Processes." Proceedings of the ASME 2005 Summer Heat Transfer Conference collocated with the ASME 2005 Pacific Rim Technical Conference and Exhibition on Integration and Packaging of MEMS, NEMS, and Electronic Systems. Heat Transfer: Volume 3. San Francisco, California, USA. July 17–22, 2005. pp. 121-128. ASME. https://doi.org/10.1115/HT2005-72187
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