Tensile and fatigue properties of the Bridgman directionally solidified Fe-Al-Ta eutectic

Chunjuan Cui; Yuanyuan Lai; Wei Liu; Pei Wang; Yanyun Liu; Cong Wang; Haijun Su

doi:10.1016/j.msea.2019.138257

Tensile and fatigue properties of the Bridgman directionally solidified Fe-Al-Ta eutectic

Chunjuan Cui
, Yuanyuan Lai
, Wei Liu
, Pei Wang
, Yanyun Liu
, Cong Wang
, Haijun Su

School of Materials Sience and Engineering

Xi'an University of Architecture and Technology
Shaanxi Engineering Technology Research Center for Wear-resisting Materials

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

8 Scopus citations

Abstract

Fe-Al-Ta eutectic composites were obtained by a modified Bridgman directional solidification technique at different solidification rates. High-oriented lamellar (or rod-like) Fe₂Ta(Al) phase is uniformly distributed into Fe(Al,Ta) matrix. Micro-hardness, tensile and high cycle fatigue properties of the Fe-Al-Ta eutectic at different solidification rates were systematically studied. Moreover, the fracture morphologies were observed by SEM. It is found that the mechanical properties of the Fe-Al-Ta eutectic composites are better than that of the as-cast Fe-Al-Ta eutectic alloy because of the directional heat flow. Finally, the strengthening mechanism of Fe-Al-Ta eutectic was discussed.

Original language	English
Article number	138257
Journal	Materials Science and Engineering: A
Volume	765
DOIs	https://doi.org/10.1016/j.msea.2019.138257
State	Published - 23 Sep 2019

Keywords

Directional solidification
Eutectic composite
Fracture morphology
High cycle fatigue
Micro-hardness
Tensile property

Access to Document

10.1016/j.msea.2019.138257

Cite this

@article{b4cb3a3e3ff74fa183118404bb0ff0f5,

title = "Tensile and fatigue properties of the Bridgman directionally solidified Fe-Al-Ta eutectic",

abstract = "Fe-Al-Ta eutectic composites were obtained by a modified Bridgman directional solidification technique at different solidification rates. High-oriented lamellar (or rod-like) Fe2Ta(Al) phase is uniformly distributed into Fe(Al,Ta) matrix. Micro-hardness, tensile and high cycle fatigue properties of the Fe-Al-Ta eutectic at different solidification rates were systematically studied. Moreover, the fracture morphologies were observed by SEM. It is found that the mechanical properties of the Fe-Al-Ta eutectic composites are better than that of the as-cast Fe-Al-Ta eutectic alloy because of the directional heat flow. Finally, the strengthening mechanism of Fe-Al-Ta eutectic was discussed.",

keywords = "Directional solidification, Eutectic composite, Fracture morphology, High cycle fatigue, Micro-hardness, Tensile property",

author = "Chunjuan Cui and Yuanyuan Lai and Wei Liu and Pei Wang and Yanyun Liu and Cong Wang and Haijun Su",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier B.V.",

year = "2019",

month = sep,

day = "23",

doi = "10.1016/j.msea.2019.138257",

language = "英语",

volume = "765",

journal = "Materials Science and Engineering: A",

issn = "0921-5093",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Tensile and fatigue properties of the Bridgman directionally solidified Fe-Al-Ta eutectic

AU - Cui, Chunjuan

AU - Lai, Yuanyuan

AU - Liu, Wei

AU - Wang, Pei

AU - Liu, Yanyun

AU - Wang, Cong

AU - Su, Haijun

PY - 2019/9/23

Y1 - 2019/9/23

N2 - Fe-Al-Ta eutectic composites were obtained by a modified Bridgman directional solidification technique at different solidification rates. High-oriented lamellar (or rod-like) Fe2Ta(Al) phase is uniformly distributed into Fe(Al,Ta) matrix. Micro-hardness, tensile and high cycle fatigue properties of the Fe-Al-Ta eutectic at different solidification rates were systematically studied. Moreover, the fracture morphologies were observed by SEM. It is found that the mechanical properties of the Fe-Al-Ta eutectic composites are better than that of the as-cast Fe-Al-Ta eutectic alloy because of the directional heat flow. Finally, the strengthening mechanism of Fe-Al-Ta eutectic was discussed.

AB - Fe-Al-Ta eutectic composites were obtained by a modified Bridgman directional solidification technique at different solidification rates. High-oriented lamellar (or rod-like) Fe2Ta(Al) phase is uniformly distributed into Fe(Al,Ta) matrix. Micro-hardness, tensile and high cycle fatigue properties of the Fe-Al-Ta eutectic at different solidification rates were systematically studied. Moreover, the fracture morphologies were observed by SEM. It is found that the mechanical properties of the Fe-Al-Ta eutectic composites are better than that of the as-cast Fe-Al-Ta eutectic alloy because of the directional heat flow. Finally, the strengthening mechanism of Fe-Al-Ta eutectic was discussed.

KW - Directional solidification

KW - Eutectic composite

KW - Fracture morphology

KW - High cycle fatigue

KW - Micro-hardness

KW - Tensile property

UR - https://www.scopus.com/pages/publications/85070575626

U2 - 10.1016/j.msea.2019.138257

DO - 10.1016/j.msea.2019.138257

M3 - 文章

AN - SCOPUS:85070575626

SN - 0921-5093

VL - 765

JO - Materials Science and Engineering: A

JF - Materials Science and Engineering: A

M1 - 138257

ER -

Tensile and fatigue properties of the Bridgman directionally solidified Fe-Al-Ta eutectic

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this