Leading Phase in the Directionally Solidifying Fe – 4.25%C Eutectic Alloy

• Autorzy: Trepczyńska-Łent M.

Identyfikatory

DOI

10.24425/afe.2019.129640

• Języki publikacji: EN

Abstrakty

EN

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.

Słowa kluczowe

EN

directional solidification; eutectic alloy Fe-C; solidification front; leading phase

PL

krzepnięcie kierunkowe; stop eutektyczny; front krzepnięcia

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2019
• Tom: iss. 4
• Strony: 113--116
• Opis fizyczny: Bibliogr. 18 poz., fot., rys., tab.

Twórcy

autor

Trepczyńska-Łent M.

• Department of Materials Science and Engineering, Mechanical Engineering Faculty, UTP University of Science and Technology, Bydgoszcz, Poland

Bibliografia

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Uwagi

PL

Opracowanie rekordu w ramach umowy 509/P-DUN/2018 ze środków MNiSW przeznaczonych na działalność upowszechniającą naukę (2019)