AlCoCrFeNi high entropy alloy fabricated via selective laser melting reinforced by Fe-based metallic glass

Jiang, Q. and Zhang, P. and Yu, Z. and Tian, Y. and Ma, S. (2022) AlCoCrFeNi high entropy alloy fabricated via selective laser melting reinforced by Fe-based metallic glass. Materials Letters, 307: 130994. ISSN 0167-577X

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Abstract

The 5% Fe-based amorphous reinforced AlCoCrFeNi high-entropy alloy (HEA) specimens were prepared by selective laser melting (SLM) technique. The mixed of Fe-based amorphous reduces the grain diameter and eliminates the presence of texture. Meanwhile, the anisotropy of the specimen was reduced. The addition of Fe-based amorphous causes the precipitation of FCC phase in the body-centered cubic (BCC) matrix, and the face-centered cubic (FCC) phase is uniformly distributed at the grain boundaries. The presence of FCC phase significantly reduces the internal stress of the specimen. The elements in the amorphous alloy solidly dissolve into the BCC matrix during the printing process, further strengthening the BCC matrix. The residual amorphous and nanocrystalline phases also result in a significant improvement in the performance of the specimen.

Item Type:

Journal Article

Journal or Publication Title:

Materials Letters

Additional Information:

This is the author’s version of a work that was accepted for publication in Materials Letters. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Materials Letters, 307, 2021 DOI: 10.1016/j.matlet.2021.130994

Uncontrolled Keywords:

/dk/atira/pure/subjectarea/asjc/2200/2211

Subjects:

?? 3d printingamorphous materialscomposite materialshigh-entropy alloysmicrostructurealuminum alloysamorphous alloyschromium alloyscobalt alloysentropygrain boundariesiron alloysmeltingmetallic glassnanocrystalline alloysnanocrystalsreinforcementselective la ??

Departments:

Faculty of Science and Technology > Engineering

ID Code:

161602

Deposited By:

ep_importer_pure

Deposited On:

01 Nov 2021 15:16

Refereed?:

Yes

Published?:

Published