Study of Microstructure of Oriented Eutectic Fe-C Alloy

• Autorzy: Trepczyńska-Łent M.

Identyfikatory

DOI

10.24425/118824

• Języki publikacji: EN

Abstrakty

EN

Fe - 4,25% C alloy was directionally solidified with a constant temperature gradient of G = 33,5 K/mm and growth rate of v = 83,3 μm/s (300 mm/h) using a vacuum Bridgman-type crystal growing facility with liquid metal cooling technique. To reveal more detailed microstructure, the deep etching was made. This was obtained in the process of electrolytic dissolution. The microstructure of the sample was examined on the longitudinal and transverse sections using an Optical Microscope and Scanning Electron Microscope. Using the Electron Backscattered Diffraction technique, phase map and analysis of phase were made. In this paper the analysis of Fe-C alloy eutectic microstructure is presented. Regular eutectic structure was obtained. The fracture surfaces show lamellar structure. Microscopic observation after electrolytic extraction indicates that the grains of longitudinal shape of eutectic cementite have been obtained. These grains are characterized by layered construction with many rounded discontinuities.

Słowa kluczowe

EN

directional solidification; eutectic alloy; microstructure; longitudinal section; transverse section

PL

krzepnięcie; stop eutektyczny; mikrostruktura

• Wydawca: Komisja Odlewnictwa Polskiej Akademii Nauk Oddział w Katowicach
• Czasopismo: Archives of Foundry Engineering
• Rocznik: 2018
• Tom: Vol. 18, iss. 1
• Strony: 123--128
• Opis fizyczny: Bibliogr. 17 poz., rys.

Twórcy

autor

Trepczyńska-Łent M.

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

Bibliografia

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• [14] Trepczyńska-Łent, M. (2017). Directional solidification of Fe-Fe3C white eutectic alloy. Crystal Research and Technology. 52(7), Version of record online: 26 JUN 2017. DOI: 10.1002/crat.201600359.
• [15] Trepczyńska-Łent, M. (2013). Possibilities of the materials properties improvement for the cementite eutectic by means of unidirectional solidification. Archives of Metallurgy and Material. 58(3), 987- 991.
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Uwagi

PL

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