Friction and wear behavior of Ni-based solid-lubricating composites at high temperature in a vacuum environment

Jun Cheng; Jinming Zhen; Shengyu Zhu; Jun Yang; Jiqiang Ma; Wensheng Li; Weimin Liu

doi:10.1016/j.matdes.2017.03.030

Friction and wear behavior of Ni-based solid-lubricating composites at high temperature in a vacuum environment

Jun Cheng
, Jinming Zhen
, Shengyu Zhu
, Jun Yang
, Jiqiang Ma
, Wensheng Li
, Weimin Liu

CAS - Lanzhou Institute of Chemical Physics
Lanzhou University of Technology

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

66 Scopus citations

Abstract

In this paper, the effect of the complex condition with high temperature and vacuum on the tribological properties of NiCrMoAl-Ag-CaF₂/BaF₂ solid-lubricating composite has been investigated. It presents that this composite displays the excellent tribological properties in vacuum than in air from room temperature to 800 °C. In vacuum, the friction coefficients are around or below 0.20 and superior to that in air. Besides, the wear rates in vacuum are at least one order of magnitude lower than those tested in air. They can be divided into three stages with the temperature (10^− 7 mm³/Nm at room temperature and 200 °C, 10^− 6 mm³/Nm between 400 and 600 °C, and 10^− 5 mm³/Nm at 800 °C). Also, the surface oxidation behavior and the lubrication characteristics of solid lubricants (Ag and fluorides) in vacuum are clarified and related to the tribological properties.

Original language	English
Pages (from-to)	405-413
Number of pages	9
Journal	Materials and Design
Volume	122
DOIs	https://doi.org/10.1016/j.matdes.2017.03.030
State	Published - 15 May 2017
Externally published	Yes

Keywords

High temperature
Ni-based composite
Solid-lubricating
Tribological characteristics
Vacuum

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10.1016/j.matdes.2017.03.030

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title = "Friction and wear behavior of Ni-based solid-lubricating composites at high temperature in a vacuum environment",

abstract = "In this paper, the effect of the complex condition with high temperature and vacuum on the tribological properties of NiCrMoAl-Ag-CaF2/BaF2 solid-lubricating composite has been investigated. It presents that this composite displays the excellent tribological properties in vacuum than in air from room temperature to 800 °C. In vacuum, the friction coefficients are around or below 0.20 and superior to that in air. Besides, the wear rates in vacuum are at least one order of magnitude lower than those tested in air. They can be divided into three stages with the temperature (10− 7 mm3/Nm at room temperature and 200 °C, 10− 6 mm3/Nm between 400 and 600 °C, and 10− 5 mm3/Nm at 800 °C). Also, the surface oxidation behavior and the lubrication characteristics of solid lubricants (Ag and fluorides) in vacuum are clarified and related to the tribological properties.",

keywords = "High temperature, Ni-based composite, Solid-lubricating, Tribological characteristics, Vacuum",

author = "Jun Cheng and Jinming Zhen and Shengyu Zhu and Jun Yang and Jiqiang Ma and Wensheng Li and Weimin Liu",

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

year = "2017",

month = may,

day = "15",

doi = "10.1016/j.matdes.2017.03.030",

language = "英语",

volume = "122",

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T1 - Friction and wear behavior of Ni-based solid-lubricating composites at high temperature in a vacuum environment

AU - Cheng, Jun

AU - Zhen, Jinming

AU - Zhu, Shengyu

AU - Yang, Jun

AU - Ma, Jiqiang

AU - Li, Wensheng

AU - Liu, Weimin

PY - 2017/5/15

Y1 - 2017/5/15

N2 - In this paper, the effect of the complex condition with high temperature and vacuum on the tribological properties of NiCrMoAl-Ag-CaF2/BaF2 solid-lubricating composite has been investigated. It presents that this composite displays the excellent tribological properties in vacuum than in air from room temperature to 800 °C. In vacuum, the friction coefficients are around or below 0.20 and superior to that in air. Besides, the wear rates in vacuum are at least one order of magnitude lower than those tested in air. They can be divided into three stages with the temperature (10− 7 mm3/Nm at room temperature and 200 °C, 10− 6 mm3/Nm between 400 and 600 °C, and 10− 5 mm3/Nm at 800 °C). Also, the surface oxidation behavior and the lubrication characteristics of solid lubricants (Ag and fluorides) in vacuum are clarified and related to the tribological properties.

AB - In this paper, the effect of the complex condition with high temperature and vacuum on the tribological properties of NiCrMoAl-Ag-CaF2/BaF2 solid-lubricating composite has been investigated. It presents that this composite displays the excellent tribological properties in vacuum than in air from room temperature to 800 °C. In vacuum, the friction coefficients are around or below 0.20 and superior to that in air. Besides, the wear rates in vacuum are at least one order of magnitude lower than those tested in air. They can be divided into three stages with the temperature (10− 7 mm3/Nm at room temperature and 200 °C, 10− 6 mm3/Nm between 400 and 600 °C, and 10− 5 mm3/Nm at 800 °C). Also, the surface oxidation behavior and the lubrication characteristics of solid lubricants (Ag and fluorides) in vacuum are clarified and related to the tribological properties.

KW - High temperature

KW - Ni-based composite

KW - Solid-lubricating

KW - Tribological characteristics

KW - Vacuum

UR - https://www.scopus.com/pages/publications/85015333538

U2 - 10.1016/j.matdes.2017.03.030

DO - 10.1016/j.matdes.2017.03.030

M3 - 文章

AN - SCOPUS:85015333538

SN - 0264-1275

VL - 122

SP - 405

EP - 413

JO - Materials and Design

JF - Materials and Design

ER -

Friction and wear behavior of Ni-based solid-lubricating composites at high temperature in a vacuum environment

Abstract

Keywords

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