High Temperature Tensile Property and Fracture Behavior of Directionally Solidified Fe-Al-Ta Eutectic Composites

Chunjuan Cui; Li Deng; Wei Liu; Yan Wang; Yue Liu; Yuanyuan Lai; Haijun Su; Yingying Liu

doi:10.1007/s11595-022-2506-2

High Temperature Tensile Property and Fracture Behavior of Directionally Solidified Fe-Al-Ta Eutectic Composites

Chunjuan Cui, Li Deng, Wei Liu, Yan Wang, Yue Liu, Yuanyuan Lai, Haijun Su, Yingying Liu

School of Materials Sience and Engineering

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

Fe-Al-Ta eutectic composites with solidification rates of 6, 20, 30, 80 and 200μm/s were obtained by a modified Bridgman directional solidification technique and alloying. Moreover, tensile property and fracture behavior of Fe-Al-Ta eutectic composites were studied at 600 °C. The relationship between mechanical property and microstructure at high temperature was studied. Microstructure of Fe-Al-Ta eutectic is composed of Fe₂Ta (Al) Laves phase and Fe (Al, Ta) matrix phase. In addition, the tensile strength at high temperatures is higher than that at room temperature. The tensile strength is increased with the increase of solidification rate. Moreover, fracture morphology transforms from cleavage fracture to dimple fracture as the solidification rate is increased at high temperatures.

Original language	English
Pages (from-to)	110-116
Number of pages	7
Journal	Journal Wuhan University of Technology, Materials Science Edition
Volume	37
Issue number	1
DOIs	https://doi.org/10.1007/s11595-022-2506-2
State	Published - Feb 2022

Keywords

Fe-Al-Ta eutectic
directional solidification
fracture behavior
high temperature tensile property

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10.1007/s11595-022-2506-2

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title = "High Temperature Tensile Property and Fracture Behavior of Directionally Solidified Fe-Al-Ta Eutectic Composites",

abstract = "Fe-Al-Ta eutectic composites with solidification rates of 6, 20, 30, 80 and 200μm/s were obtained by a modified Bridgman directional solidification technique and alloying. Moreover, tensile property and fracture behavior of Fe-Al-Ta eutectic composites were studied at 600 °C. The relationship between mechanical property and microstructure at high temperature was studied. Microstructure of Fe-Al-Ta eutectic is composed of Fe2Ta (Al) Laves phase and Fe (Al, Ta) matrix phase. In addition, the tensile strength at high temperatures is higher than that at room temperature. The tensile strength is increased with the increase of solidification rate. Moreover, fracture morphology transforms from cleavage fracture to dimple fracture as the solidification rate is increased at high temperatures.",

keywords = "Fe-Al-Ta eutectic, directional solidification, fracture behavior, high temperature tensile property",

author = "Chunjuan Cui and Li Deng and Wei Liu and Yan Wang and Yue Liu and Yuanyuan Lai and Haijun Su and Yingying Liu",

note = "Publisher Copyright: {\textcopyright} 2022, Wuhan University of Technology and Springer-Verlag GmbH Germany, Part of Springer Nature.",

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doi = "10.1007/s11595-022-2506-2",

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T1 - High Temperature Tensile Property and Fracture Behavior of Directionally Solidified Fe-Al-Ta Eutectic Composites

AU - Cui, Chunjuan

AU - Deng, Li

AU - Liu, Wei

AU - Wang, Yan

AU - Liu, Yue

AU - Lai, Yuanyuan

AU - Su, Haijun

AU - Liu, Yingying

PY - 2022/2

Y1 - 2022/2

N2 - Fe-Al-Ta eutectic composites with solidification rates of 6, 20, 30, 80 and 200μm/s were obtained by a modified Bridgman directional solidification technique and alloying. Moreover, tensile property and fracture behavior of Fe-Al-Ta eutectic composites were studied at 600 °C. The relationship between mechanical property and microstructure at high temperature was studied. Microstructure of Fe-Al-Ta eutectic is composed of Fe2Ta (Al) Laves phase and Fe (Al, Ta) matrix phase. In addition, the tensile strength at high temperatures is higher than that at room temperature. The tensile strength is increased with the increase of solidification rate. Moreover, fracture morphology transforms from cleavage fracture to dimple fracture as the solidification rate is increased at high temperatures.

AB - Fe-Al-Ta eutectic composites with solidification rates of 6, 20, 30, 80 and 200μm/s were obtained by a modified Bridgman directional solidification technique and alloying. Moreover, tensile property and fracture behavior of Fe-Al-Ta eutectic composites were studied at 600 °C. The relationship between mechanical property and microstructure at high temperature was studied. Microstructure of Fe-Al-Ta eutectic is composed of Fe2Ta (Al) Laves phase and Fe (Al, Ta) matrix phase. In addition, the tensile strength at high temperatures is higher than that at room temperature. The tensile strength is increased with the increase of solidification rate. Moreover, fracture morphology transforms from cleavage fracture to dimple fracture as the solidification rate is increased at high temperatures.

KW - Fe-Al-Ta eutectic

KW - directional solidification

KW - fracture behavior

KW - high temperature tensile property

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DO - 10.1007/s11595-022-2506-2

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VL - 37

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EP - 116

JO - Journal Wuhan University of Technology, Materials Science Edition

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High Temperature Tensile Property and Fracture Behavior of Directionally Solidified Fe-Al-Ta Eutectic Composites

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