Tribological behavior and mechanism of h-BN modified copper metal matrix composites paired with C/C–SiC

Fu Chen; Zhuan Li; Ling Fang Zou; Wen Jie Ma; Jin Wei Li; Zhuo Chen; Zi Bo Niu; Peng Fei Liu; Peng Xiao

doi:10.1016/j.triboint.2020.106561

Tribological behavior and mechanism of h-BN modified copper metal matrix composites paired with C/C–SiC

Fu Chen, Zhuan Li^*, Ling Fang Zou, Wen Jie Ma, Jin Wei Li, Zhuo Chen, Zi Bo Niu, Peng Fei Liu, Peng Xiao

^*Corresponding author for this work

Research output: Contribution to journal › Journal article › Research › peer-review

26 Citations (Scopus)

Abstract

The thermal stability of hexagonal boron nitride (h-BN) plays a crucial role in stabilizing the braking performance of friction pairs (i.e., brake-pad/disc) in high-speed trains. In this study, h-BN modified copper metal matrix composites (Cu-MMCs) were fabricated via powder metallurgy, and their tribological behavior and mechanism upon pairing with C/C–SiC were investigated. Results show that as the h-BN content increased, the wear mechanism of the Cu-MMCs switched from abrasive to severe fatigue, followed by switching from mild oxidation to adhesive abrasion. Additionally, Cu-MMCs containing 2 wt% h-BN exhibited a high, stable coefficient of friction (COF) during repeated high-speed braking cycles together with a smoothed braking process at high braking speeds.

Original language	English
Article number	106561
Journal	Tribology International
Volume	153
ISSN	0301-679X
DOIs	https://doi.org/10.1016/j.triboint.2020.106561
Publication status	Published - Jan 2021

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Publisher Copyright:
© 2020

Keywords

Metal matrix composites
Solid lubricant
Tribological behavior
Wear mechanism map

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title = "Tribological behavior and mechanism of h-BN modified copper metal matrix composites paired with C/C–SiC",

abstract = "The thermal stability of hexagonal boron nitride (h-BN) plays a crucial role in stabilizing the braking performance of friction pairs (i.e., brake-pad/disc) in high-speed trains. In this study, h-BN modified copper metal matrix composites (Cu-MMCs) were fabricated via powder metallurgy, and their tribological behavior and mechanism upon pairing with C/C–SiC were investigated. Results show that as the h-BN content increased, the wear mechanism of the Cu-MMCs switched from abrasive to severe fatigue, followed by switching from mild oxidation to adhesive abrasion. Additionally, Cu-MMCs containing 2 wt% h-BN exhibited a high, stable coefficient of friction (COF) during repeated high-speed braking cycles together with a smoothed braking process at high braking speeds.",

keywords = "Metal matrix composites, Solid lubricant, Tribological behavior, Wear mechanism map",

author = "Fu Chen and Zhuan Li and Zou, {Ling Fang} and Ma, {Wen Jie} and Li, {Jin Wei} and Zhuo Chen and Niu, {Zi Bo} and Liu, {Peng Fei} and Peng Xiao",

note = "Publisher Copyright: {\textcopyright} 2020",

year = "2021",

month = jan,

doi = "10.1016/j.triboint.2020.106561",

language = "English",

volume = "153",

journal = "Tribology International",

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T1 - Tribological behavior and mechanism of h-BN modified copper metal matrix composites paired with C/C–SiC

AU - Chen, Fu

AU - Li, Zhuan

AU - Zou, Ling Fang

AU - Ma, Wen Jie

AU - Li, Jin Wei

AU - Chen, Zhuo

AU - Niu, Zi Bo

AU - Liu, Peng Fei

AU - Xiao, Peng

PY - 2021/1

Y1 - 2021/1

N2 - The thermal stability of hexagonal boron nitride (h-BN) plays a crucial role in stabilizing the braking performance of friction pairs (i.e., brake-pad/disc) in high-speed trains. In this study, h-BN modified copper metal matrix composites (Cu-MMCs) were fabricated via powder metallurgy, and their tribological behavior and mechanism upon pairing with C/C–SiC were investigated. Results show that as the h-BN content increased, the wear mechanism of the Cu-MMCs switched from abrasive to severe fatigue, followed by switching from mild oxidation to adhesive abrasion. Additionally, Cu-MMCs containing 2 wt% h-BN exhibited a high, stable coefficient of friction (COF) during repeated high-speed braking cycles together with a smoothed braking process at high braking speeds.

AB - The thermal stability of hexagonal boron nitride (h-BN) plays a crucial role in stabilizing the braking performance of friction pairs (i.e., brake-pad/disc) in high-speed trains. In this study, h-BN modified copper metal matrix composites (Cu-MMCs) were fabricated via powder metallurgy, and their tribological behavior and mechanism upon pairing with C/C–SiC were investigated. Results show that as the h-BN content increased, the wear mechanism of the Cu-MMCs switched from abrasive to severe fatigue, followed by switching from mild oxidation to adhesive abrasion. Additionally, Cu-MMCs containing 2 wt% h-BN exhibited a high, stable coefficient of friction (COF) during repeated high-speed braking cycles together with a smoothed braking process at high braking speeds.

KW - Metal matrix composites

KW - Solid lubricant

KW - Tribological behavior

KW - Wear mechanism map

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U2 - 10.1016/j.triboint.2020.106561

DO - 10.1016/j.triboint.2020.106561

M3 - Journal article

AN - SCOPUS:85089747377

SN - 0301-679X

VL - 153

JO - Tribology International

JF - Tribology International

M1 - 106561

ER -

Tribological behavior and mechanism of h-BN modified copper metal matrix composites paired with C/C–SiC

Abstract

Bibliographical note

Keywords

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