The deviation from eutectic composition in boundary layer for eutectic growth: a phase-field study

• Autorzy: Tu Zhixin , Zhou Jianxin , Yin Yajun , Ji Xiaoyuan , Shen Xu

Identyfikatory

DOI

10.24425/amm.2019.126226

• Języki publikacji: EN

Abstrakty

EN

In this paper, the deviation from eutectic composition in boundary layer for eutectic growth is studied by phase-field method. According to a series of artificial phase diagram, the lamellar eutectic growth of these alloy is simulated during directional solidification. At steady state, average growth velocity of eutectic lamella is equal to the pulling velocity. With the increasing of the liquidus slope of β phase, the average composition in boundary layer would deviate from eutectic composition and the deviation increases. The constitutional undercooling difference between both solid phases caused by the deviation increases with the increasing of the deviation. The β phase would develop a depression under the influence of the deviation.

Słowa kluczowe

EN

phase field; eutectic growth; solidification; composition deviation

• Wydawca: Institute of Metallurgy and Materials Science of Polish Academy of Sciences ; Committee of Materials Engineering and Metallurgy of Polish Academy of Sciences
• Czasopismo: Archives of Metallurgy and Materials
• Rocznik: 2019
• Tom: Vol. 64, iss. 1
• Strony: 119--123
• Opis fizyczny: Bibliogr. 13 poz., rys., tab., wzory

Twórcy

autor

Tu Zhixin

• Huazhong University of Science and Technology, State Key Laboratory of Materials Processing and Die & Mould Technology, Wuhan 430074, Hubei Province, China

autor

Zhou Jianxin

• Huazhong University of Science and Technology, State Key Laboratory of Materials Processing and Die & Mould Technology, Wuhan 430074, Hubei Province, China

autor

Yin Yajun

• Huazhong University of Science and Technology, State Key Laboratory of Materials Processing and Die & Mould Technology, Wuhan 430074, Hubei Province, China

autor

Ji Xiaoyuan

• Huazhong University of Science and Technology, State Key Laboratory of Materials Processing and Die & Mould Technology, Wuhan 430074, Hubei Province, China

autor

Shen Xu

• Huazhong University of Science and Technology, State Key Laboratory of Materials Processing and Die & Mould Technology, Wuhan 430074, Hubei Province, China

Bibliografia

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Uwagi

EN

1. This research is financially supported by a project aided by the National Nature Science Fund Projects of China (No. 51475181, No. 51605174).

PL

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