Compositive role of TiB2 in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2p/CrCoFeNiMn high-entropy composite

Zhao Chen; Xiaoli Wen; Weili Wang; Xin Lin; Haiou Yang; Lianyang Chen; Haibin Wu; Wenhui Li; Nan Li

doi:10.1080/21663831.2023.2272805

Compositive role of TiB₂ in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2_p/CrCoFeNiMn high-entropy composite

Zhao Chen, Xiaoli Wen, Weili Wang, Xin Lin, Haiou Yang, Lianyang Chen, Haibin Wu, Wenhui Li, Nan Li

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

4 Scopus citations

Abstract

The CoCrFeNiMn high-entropy alloy and TiB2_p/CoCrFeNiMn high-entropy composite (HEC) were manufactured by Selective laser melting. For the CoCrFeNiMn, a coarse epitaxial columnar microstructure with strong crystallographic textures was generated. While in the TiB2_p/CoCrFeNiMn, TiB₂ particles are distributed in the significantly refined dendrites and nearly equiaxial grains, and phase transformation occurs to form σ phase. TiB₂ and σ phase construct a strong interface relationship with the matrix. TiB2_p/CoCrFeNiMn HEC has extremely high microhardness (329 ± 2 HV) and excellent wear resistance (coefficients of friction 0.31 ± 0.02). The wear mechanism of the HEC was studied refer to the microstructure, composition and hardness. IMPACT STATEMENT TiB₂-reinforced CoCrFeNiMn-based high-entropy composite is successfully fabricated by Selective laser melting, which exhibits exceptional hardness and the best wear resistance.

Original language	English
Pages (from-to)	964-972
Number of pages	9
Journal	Materials Research Letters
Volume	11
Issue number	11
DOIs	https://doi.org/10.1080/21663831.2023.2272805
State	Published - 2023

Keywords

Mechanical properties
Microstructures
Selective laser melting
TiB2/CoCrFeNiMn high-entropy composite
Wear resistance

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10.1080/21663831.2023.2272805

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title = "Compositive role of TiB2 in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2p/CrCoFeNiMn high-entropy composite",

abstract = "The CoCrFeNiMn high-entropy alloy and TiB2p/CoCrFeNiMn high-entropy composite (HEC) were manufactured by Selective laser melting. For the CoCrFeNiMn, a coarse epitaxial columnar microstructure with strong crystallographic textures was generated. While in the TiB2p/CoCrFeNiMn, TiB2 particles are distributed in the significantly refined dendrites and nearly equiaxial grains, and phase transformation occurs to form σ phase. TiB2 and σ phase construct a strong interface relationship with the matrix. TiB2p/CoCrFeNiMn HEC has extremely high microhardness (329 ± 2 HV) and excellent wear resistance (coefficients of friction 0.31 ± 0.02). The wear mechanism of the HEC was studied refer to the microstructure, composition and hardness. IMPACT STATEMENT TiB2-reinforced CoCrFeNiMn-based high-entropy composite is successfully fabricated by Selective laser melting, which exhibits exceptional hardness and the best wear resistance.",

keywords = "Mechanical properties, Microstructures, Selective laser melting, TiB2/CoCrFeNiMn high-entropy composite, Wear resistance",

author = "Zhao Chen and Xiaoli Wen and Weili Wang and Xin Lin and Haiou Yang and Lianyang Chen and Haibin Wu and Wenhui Li and Nan Li",

note = "Publisher Copyright: {\textcopyright} 2023 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.",

year = "2023",

doi = "10.1080/21663831.2023.2272805",

language = "英语",

volume = "11",

pages = "964--972",

journal = "Materials Research Letters",

issn = "2166-3831",

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}

TY - JOUR

T1 - Compositive role of TiB2 in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2p/CrCoFeNiMn high-entropy composite

AU - Chen, Zhao

AU - Wen, Xiaoli

AU - Wang, Weili

AU - Lin, Xin

AU - Yang, Haiou

AU - Chen, Lianyang

AU - Wu, Haibin

AU - Li, Wenhui

AU - Li, Nan

PY - 2023

Y1 - 2023

N2 - The CoCrFeNiMn high-entropy alloy and TiB2p/CoCrFeNiMn high-entropy composite (HEC) were manufactured by Selective laser melting. For the CoCrFeNiMn, a coarse epitaxial columnar microstructure with strong crystallographic textures was generated. While in the TiB2p/CoCrFeNiMn, TiB2 particles are distributed in the significantly refined dendrites and nearly equiaxial grains, and phase transformation occurs to form σ phase. TiB2 and σ phase construct a strong interface relationship with the matrix. TiB2p/CoCrFeNiMn HEC has extremely high microhardness (329 ± 2 HV) and excellent wear resistance (coefficients of friction 0.31 ± 0.02). The wear mechanism of the HEC was studied refer to the microstructure, composition and hardness. IMPACT STATEMENT TiB2-reinforced CoCrFeNiMn-based high-entropy composite is successfully fabricated by Selective laser melting, which exhibits exceptional hardness and the best wear resistance.

AB - The CoCrFeNiMn high-entropy alloy and TiB2p/CoCrFeNiMn high-entropy composite (HEC) were manufactured by Selective laser melting. For the CoCrFeNiMn, a coarse epitaxial columnar microstructure with strong crystallographic textures was generated. While in the TiB2p/CoCrFeNiMn, TiB2 particles are distributed in the significantly refined dendrites and nearly equiaxial grains, and phase transformation occurs to form σ phase. TiB2 and σ phase construct a strong interface relationship with the matrix. TiB2p/CoCrFeNiMn HEC has extremely high microhardness (329 ± 2 HV) and excellent wear resistance (coefficients of friction 0.31 ± 0.02). The wear mechanism of the HEC was studied refer to the microstructure, composition and hardness. IMPACT STATEMENT TiB2-reinforced CoCrFeNiMn-based high-entropy composite is successfully fabricated by Selective laser melting, which exhibits exceptional hardness and the best wear resistance.

KW - Mechanical properties

KW - Microstructures

KW - Selective laser melting

KW - TiB2/CoCrFeNiMn high-entropy composite

KW - Wear resistance

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U2 - 10.1080/21663831.2023.2272805

DO - 10.1080/21663831.2023.2272805

M3 - 文章

AN - SCOPUS:85175329684

SN - 2166-3831

VL - 11

SP - 964

EP - 972

JO - Materials Research Letters

JF - Materials Research Letters

IS - 11

ER -

Compositive role of TiB₂ in microstructure optimization and wear-resistant improvement of selective-laser-melted TiB2_p/CrCoFeNiMn high-entropy composite

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