Influence of radial convection on microstructure development in Sn-Ni peritectic system in a temperature gradient
| Autor: | Peng Peng |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Convection
Materials science Mechanical Engineering Alloy 02 engineering and technology Radius engineering.material 010402 general chemistry 021001 nanoscience & nanotechnology Condensed Matter Physics Microstructure 01 natural sciences 0104 chemical sciences Growth velocity Temperature gradient Dendrite (crystal) Mechanics of Materials engineering General Materials Science Development (differential geometry) Composite material 0210 nano-technology |
| Zdroj: | Materials Letters. 254:383-385 |
| ISSN: | 0167-577X |
| Popis: | The influence of radial convection on the microstructure development has been investigated in directionally solidified Sn-36at.%Ni peritectic alloys at a constant growth velocity with different sample diameters. Since the rejected Sn is denser than Ni, there existed no axial convection in directionally solidified Sn-36at.%Ni peritectic alloys, however, the radial convection still influenced the microstructures. It was demonstrated through the dendrite tip radius R that the diffusive growth condition could be obtained in this alloy when the sample diameter was reduced to 1 mm. Furthermore, it was confirmed that the radial convection could obviously promote the peritectic transformation process in Sn-Ni peritectic alloy. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full Text from ScienceDirect