Microstructure and high-temperature wear mechanism of laser cladded CoCrBFeNiSi high-entropy alloy amorphous coating

F. Y. Shu; L. Wu; H. Y. Zhao; S. H. Sui; L. Zhou; J. Zhang; W. X. He; P. He; B. S. Xu

doi:10.1016/j.matlet.2017.09.056

Microstructure and high-temperature wear mechanism of laser cladded CoCrBFeNiSi high-entropy alloy amorphous coating

F. Y. Shu
, L. Wu
, H. Y. Zhao
, S. H. Sui
, L. Zhou^*
, J. Zhang
, W. X. He
, P. He
, B. S. Xu

^*Corresponding author for this work

School of Materials Science and Engineering

Harbin Institute of Technology Weihai
Zhejiang Provincial Key Laboratory of Laser Processing Robot/Key Laboratory of Laser Precision Processing and Detection
National Key Laboratory for Remanufacturing

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

117 Scopus citations

Abstract

Amorphous coating was successfully fabricated on low carbon steel substrates with one-step laser cladding method using CoCrNiSiBFe high-entropy alloy powder. The microstructure and high-temperature wear mechanism of the fabricated coating was investigated. The coating exhibited layered microstructure including the columnar dendrites as the bottom layer and the amorphous-matrix layer with β-Co phase as the minor phase. The content of amorphous phase in the upper surface was up to 85.1%. Different high temperature wear mechanism was exhibited by the two layers leading to a remarkable decrease of wear mass loss and thus a much better wear resistance in the amorphous layer.

Original language	English
Pages (from-to)	235-238
Number of pages	4
Journal	Materials Letters
Volume	211
DOIs	https://doi.org/10.1016/j.matlet.2017.09.056
State	Published - 15 Jan 2018

Keywords

Amorphous coating
CoCrBFeNiSi high-entropy alloy powder
High-temperature wear behavior
Laser cladding

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10.1016/j.matlet.2017.09.056

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title = "Microstructure and high-temperature wear mechanism of laser cladded CoCrBFeNiSi high-entropy alloy amorphous coating",

abstract = "Amorphous coating was successfully fabricated on low carbon steel substrates with one-step laser cladding method using CoCrNiSiBFe high-entropy alloy powder. The microstructure and high-temperature wear mechanism of the fabricated coating was investigated. The coating exhibited layered microstructure including the columnar dendrites as the bottom layer and the amorphous-matrix layer with β-Co phase as the minor phase. The content of amorphous phase in the upper surface was up to 85.1\%. Different high temperature wear mechanism was exhibited by the two layers leading to a remarkable decrease of wear mass loss and thus a much better wear resistance in the amorphous layer.",

keywords = "Amorphous coating, CoCrBFeNiSi high-entropy alloy powder, High-temperature wear behavior, Laser cladding",

author = "Shu, \{F. Y.\} and L. Wu and Zhao, \{H. Y.\} and Sui, \{S. H.\} and L. Zhou and J. Zhang and He, \{W. X.\} and P. He and Xu, \{B. S.\}",

note = "Publisher Copyright: {\textcopyright} 2017",

year = "2018",

month = jan,

day = "15",

doi = "10.1016/j.matlet.2017.09.056",

language = "英语",

volume = "211",

pages = "235--238",

journal = "Materials Letters",

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}

TY - JOUR

T1 - Microstructure and high-temperature wear mechanism of laser cladded CoCrBFeNiSi high-entropy alloy amorphous coating

AU - Shu, F. Y.

AU - Wu, L.

AU - Zhao, H. Y.

AU - Sui, S. H.

AU - Zhou, L.

AU - Zhang, J.

AU - He, W. X.

AU - He, P.

AU - Xu, B. S.

PY - 2018/1/15

Y1 - 2018/1/15

N2 - Amorphous coating was successfully fabricated on low carbon steel substrates with one-step laser cladding method using CoCrNiSiBFe high-entropy alloy powder. The microstructure and high-temperature wear mechanism of the fabricated coating was investigated. The coating exhibited layered microstructure including the columnar dendrites as the bottom layer and the amorphous-matrix layer with β-Co phase as the minor phase. The content of amorphous phase in the upper surface was up to 85.1%. Different high temperature wear mechanism was exhibited by the two layers leading to a remarkable decrease of wear mass loss and thus a much better wear resistance in the amorphous layer.

AB - Amorphous coating was successfully fabricated on low carbon steel substrates with one-step laser cladding method using CoCrNiSiBFe high-entropy alloy powder. The microstructure and high-temperature wear mechanism of the fabricated coating was investigated. The coating exhibited layered microstructure including the columnar dendrites as the bottom layer and the amorphous-matrix layer with β-Co phase as the minor phase. The content of amorphous phase in the upper surface was up to 85.1%. Different high temperature wear mechanism was exhibited by the two layers leading to a remarkable decrease of wear mass loss and thus a much better wear resistance in the amorphous layer.

KW - Amorphous coating

KW - CoCrBFeNiSi high-entropy alloy powder

KW - High-temperature wear behavior

KW - Laser cladding

UR - https://www.scopus.com/pages/publications/85030837058

U2 - 10.1016/j.matlet.2017.09.056

DO - 10.1016/j.matlet.2017.09.056

M3 - 文章

AN - SCOPUS:85030837058

SN - 0167-577X

VL - 211

SP - 235

EP - 238

JO - Materials Letters

JF - Materials Letters

ER -

Microstructure and high-temperature wear mechanism of laser cladded CoCrBFeNiSi high-entropy alloy amorphous coating

Abstract

Keywords

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