Microstructure and Mechanical Properties of Bi27In38Sn35 Foil Produced by Rapid Solidification
| Autor: | O. V. Gusakova, VG Shepelevich, S. V. Gusakova |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
020502 materials Alloy 0211 other engineering and technologies General Engineering 02 engineering and technology engineering.material Condensed Matter Physics Microstructure Indentation hardness 0205 materials engineering Phase (matter) Ultimate tensile strength engineering Texture (crystalline) Composite material Deformation (engineering) FOIL method 021102 mining & metallurgy |
| Zdroj: | Journal of Engineering Physics and Thermophysics. 94:534-540 |
| ISSN: | 1573-871X 1062-0125 |
| DOI: | 10.1007/s10891-021-02325-6 |
| Popis: | Investigations into the microstructure of Bi27In38Sn35 alloy have shown that an increase in the melt cooling rate from 102 to 105 K/s leads to a change in the solidification mechanism. At a melt cooling rate of 102 K/s, we observe consecutive solidification of the dendrites of the Sn4In phase, and then that of BiIn and BiIn2 phases in the interdendritic space. Bi27In38Sn35 foil produced by rapid solidification consists of BiIn, BiIn2, and Sn4In phases forming a lace-like structure. The foil′s chemical composition determined by X-ray spectral analysis was constant in thickness. Alloy foil phase grains have a microcrystalline structure and texture. The aging of rapidly solidified foil at room temperature causes size enlargement in phase and grain precipitations, which determines the change in its physical properties. Foil aging causes an increase in microhardness and affects tensile deformation: there is consolidation of rapidly solidified alloy at the initial stage of deformation and a reduction in its plasticity. |
| Databáze: | OpenAIRE |
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