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Type: Journal article
Title: Influence of aluminum content on the microstructure and properties of the in-situ TiC reinforced AlₓFeCoNiCu high entropy alloy matrix composites
Other Titles: Influence of aluminum content on the microstructure and properties of the in-situ TiC reinforced Al(x)FeCoNiCu high entropy alloy matrix composites
Author: Sun, X.
Zhu, H.
Li, J.
Huang, J.
Xie, Z.
Citation: Materials Science and Engineering A, 2019; 743:540-545
Publisher: Elsevier
Issue Date: 2019
ISSN: 0921-5093
Statement of
Xiaodong Sun, Heguo Zhu, Jianliang Li, Jiewen Huang, Zonghan Xie
Abstract: TiC particles reinforced AlₓFeCoNiCu multi-principal elements alloys matrix metallic composites AlₓFeCoNiCu/TiC with different content aluminum were fabricated in-situ from Al-Fe-Co-Ni-Cu-Ti-C system through vacuum inductive melting method. The microstructure and properties of AlₓFeCoNiCu/TiC composite has been analyzed. In-situ TiC reinforcements particles were uniformly distributed in the matrix and their interfaces with the matrix are very clean and no reaction layer at the interfaces. With the increase of aluminum content, the structure of matrix changed from FCC structure to BCC and FCC bi-phase structure, the ultensile fracture strength increases to a maxmium and then decreases. When the content of aluminum mole rate (x) increases from 0.2 to 0.6, the ultensile fracture strength of the composites increases from 502 MPa to a maxmium of 675 MPa. And then with the further increase of x to 1.0, the ultensile fracture strength decreases to 595 MPa.
Keywords: Multi-principal elements alloys; metallic composites; vacuum inductive melting; microstructure; precipitated phases; fracture strength
Rights: © 2018 Published by Elsevier B.V.
RMID: 0030106806
DOI: 10.1016/j.msea.2018.11.120
Appears in Collections:Mechanical Engineering publications

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