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

11 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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@article{84f0e5c3bdff46f7a7b0d25c4ecdd43c,

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",

publisher = "Taylor and Francis Ltd.",

number = "11",

}

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

UR - https://www.scopus.com/pages/publications/85175329684

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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