Tribological characterization of an alumina-based composite in dry sliding contact against laser-heated and unheated Inconel 718

Bin Zhao; Iyas Khader; Hanlian Liu; Tianfeng Zhou; Georg Konrath; Andreas Kailer

doi:10.1016/j.triboint.2020.106773

Tribological characterization of an alumina-based composite in dry sliding contact against laser-heated and unheated Inconel 718

Bin Zhao^*, Iyas Khader, Hanlian Liu, Tianfeng Zhou, Georg Konrath, Andreas Kailer

^*Corresponding author for this work

School of Mechanical Engineering

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

8 Citations (Scopus)

Abstract

Alumina-based ceramic tools have been successfully applied in high-speed turning of superalloys. In this study, the tribological characteristics of a novel Al₂O₃-SiC_w-TiC_n ceramic composite were investigated in unlubricated sliding contact against laser-heated (600 °C) and unheated Inconel 718 between 2.5 m/s and 10 m/s. The tribological behavior of the Al₂O₃-SiC_w-TiC_n ceramic was compared to a commercial Al₂O₃-SiC_w ceramic. The results indicated similar coefficients of friction (COF) in laser-heated and unheated tests. Below 7.5 m/s, the wear mechanisms in laser-heated tests were brittle fracture, plastic flow and adhesive wear and predominantly brittle fracture in unheated tests. A tribochemical layer mainly containing chromium and oxygen has formed on the contact surface at 10 m/s resulting in lowering the COF and reducing wear.

Original language	English
Article number	106773
Journal	Tribology International
Volume	155
DOIs	https://doi.org/10.1016/j.triboint.2020.106773
Publication status	Published - Mar 2021

Keywords

Alumina-based composite
High temperature friction
Inconel 718
Laser heating
dry sliding

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10.1016/j.triboint.2020.106773

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@article{0975d40ddd034643b9fc1252aa498c56,

title = "Tribological characterization of an alumina-based composite in dry sliding contact against laser-heated and unheated Inconel 718",

abstract = "Alumina-based ceramic tools have been successfully applied in high-speed turning of superalloys. In this study, the tribological characteristics of a novel Al2O3-SiCw-TiCn ceramic composite were investigated in unlubricated sliding contact against laser-heated (600 °C) and unheated Inconel 718 between 2.5 m/s and 10 m/s. The tribological behavior of the Al2O3-SiCw-TiCn ceramic was compared to a commercial Al2O3-SiCw ceramic. The results indicated similar coefficients of friction (COF) in laser-heated and unheated tests. Below 7.5 m/s, the wear mechanisms in laser-heated tests were brittle fracture, plastic flow and adhesive wear and predominantly brittle fracture in unheated tests. A tribochemical layer mainly containing chromium and oxygen has formed on the contact surface at 10 m/s resulting in lowering the COF and reducing wear.",

keywords = "Alumina-based composite, High temperature friction, Inconel 718, Laser heating, dry sliding",

author = "Bin Zhao and Iyas Khader and Hanlian Liu and Tianfeng Zhou and Georg Konrath and Andreas Kailer",

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

year = "2021",

month = mar,

doi = "10.1016/j.triboint.2020.106773",

language = "English",

volume = "155",

journal = "Tribology International",

issn = "0301-679X",

publisher = "Elsevier Inc.",

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TY - JOUR

T1 - Tribological characterization of an alumina-based composite in dry sliding contact against laser-heated and unheated Inconel 718

AU - Zhao, Bin

AU - Khader, Iyas

AU - Liu, Hanlian

AU - Zhou, Tianfeng

AU - Konrath, Georg

AU - Kailer, Andreas

PY - 2021/3

Y1 - 2021/3

N2 - Alumina-based ceramic tools have been successfully applied in high-speed turning of superalloys. In this study, the tribological characteristics of a novel Al2O3-SiCw-TiCn ceramic composite were investigated in unlubricated sliding contact against laser-heated (600 °C) and unheated Inconel 718 between 2.5 m/s and 10 m/s. The tribological behavior of the Al2O3-SiCw-TiCn ceramic was compared to a commercial Al2O3-SiCw ceramic. The results indicated similar coefficients of friction (COF) in laser-heated and unheated tests. Below 7.5 m/s, the wear mechanisms in laser-heated tests were brittle fracture, plastic flow and adhesive wear and predominantly brittle fracture in unheated tests. A tribochemical layer mainly containing chromium and oxygen has formed on the contact surface at 10 m/s resulting in lowering the COF and reducing wear.

AB - Alumina-based ceramic tools have been successfully applied in high-speed turning of superalloys. In this study, the tribological characteristics of a novel Al2O3-SiCw-TiCn ceramic composite were investigated in unlubricated sliding contact against laser-heated (600 °C) and unheated Inconel 718 between 2.5 m/s and 10 m/s. The tribological behavior of the Al2O3-SiCw-TiCn ceramic was compared to a commercial Al2O3-SiCw ceramic. The results indicated similar coefficients of friction (COF) in laser-heated and unheated tests. Below 7.5 m/s, the wear mechanisms in laser-heated tests were brittle fracture, plastic flow and adhesive wear and predominantly brittle fracture in unheated tests. A tribochemical layer mainly containing chromium and oxygen has formed on the contact surface at 10 m/s resulting in lowering the COF and reducing wear.

KW - Alumina-based composite

KW - High temperature friction

KW - Inconel 718

KW - Laser heating

KW - dry sliding

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U2 - 10.1016/j.triboint.2020.106773

DO - 10.1016/j.triboint.2020.106773

M3 - Article

AN - SCOPUS:85096875603

SN - 0301-679X

VL - 155

JO - Tribology International

JF - Tribology International

M1 - 106773

ER -

Tribological characterization of an alumina-based composite in dry sliding contact against laser-heated and unheated Inconel 718

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Keywords

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