- Tytuł:
- Leading Phase in the Directionally Solidifying Fe – 4.25%C Eutectic Alloy
- Autorzy:
- Trepczyńska-Łent, M.
- Powiązania:
- https://bibliotekanauki.pl/articles/380702.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
directional solidification
eutectic alloy Fe-C
solidification front
leading phase
krzepnięcie kierunkowe
stop eutektyczny
front krzepnięcia - Opis:
- In order to determine the leading phase of the Fe - 4.25% C eutectic alloy, the method of directional crystallization, which allows to study the character of the solid / liquid growth front, was used. Examined eutectic was directionally solidified with a constant temperature gradient of G = 33,5 K/mm and growth rate of v = 125 μm/s (450 mm/h). The Bridgman technique was used for the solidification process. The sample was grown by pulling it downwards up to 30 mm in length. The alloy quenched by rapid pulling down into the Ga-In-Sn liquid metal. The sample was examined on the longitudinal section using a light microscope and scanning electron microscope. The shape of the solid/liquid interface and particularly the leading phase protrusion were revealed. The formation of the concave – convex interface has been identified in the quasi-regular eutectic growth arrested by quenching. The cementite phase was determined to be a leading phase. The total protrusion d is marked in the adequate figure.
- Źródło:
-
Archives of Foundry Engineering; 2019, 4; 113-116
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł