Tribological properties of plasma-sprayed nickel alloy matrix self-lubricating coating at elevated temperatures

Wen Sheng Li; Yang Sun; Wei Hu; Sheng Yu Zhu; Hai Min Zhai; Jun Yang; Xiang Juan Fan; Wei Min Liu

doi:10.1007/s12598-020-01426-0

Tribological properties of plasma-sprayed nickel alloy matrix self-lubricating coating at elevated temperatures

Wen Sheng Li
, Yang Sun
, Wei Hu
, Sheng Yu Zhu
, Hai Min Zhai
, Jun Yang
, Xiang Juan Fan
, Wei Min Liu

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

12 Scopus citations

Abstract

Abstract: A nickel alloy matrix high-temperature self-lubricating coating (77.5 wt% (Ni–Cr–Mo–Al)–12.5 wt% Ag–10 wt% BaF₂/CaF₂) was prepared by plasma spraying technique. Results show that the Vickers microhardness of coating is (2.9 ± 0.5) GPa, and the average bonding strength is about (35.6 ± 0.5) MPa. The coating rubbing against Inconel 718 superalloy pin exhibits superior tribological performance with coefficient of friction (COF) of below 0.25 and wear rate of 8.2 × 10^–5–15.2 × 10^–5 mm³·N⁻¹·m⁻¹ at a wide temperature range from 25 to 800 °C, and the COF and the wear rate are slightly reduced with temperature increasing. The low COF and wear rate were attributed to the synergistic effects of Ag, BaF₂/CaF₂, Ag₂MoO₄ and BaMoO₄. Graphic abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	1844-1850
Number of pages	7
Journal	Rare Metals
Volume	40
Issue number	7
DOIs	https://doi.org/10.1007/s12598-020-01426-0
State	Published - Jul 2021
Externally published	Yes

Keywords

Coating
High temperature
Self-lubricating
Tribological behavior

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10.1007/s12598-020-01426-0

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@article{ce34aee78b8f4360a21994ea7582d0a1,

title = "Tribological properties of plasma-sprayed nickel alloy matrix self-lubricating coating at elevated temperatures",

abstract = "Abstract: A nickel alloy matrix high-temperature self-lubricating coating (77.5 wt\% (Ni–Cr–Mo–Al)–12.5 wt\% Ag–10 wt\% BaF2/CaF2) was prepared by plasma spraying technique. Results show that the Vickers microhardness of coating is (2.9 ± 0.5) GPa, and the average bonding strength is about (35.6 ± 0.5) MPa. The coating rubbing against Inconel 718 superalloy pin exhibits superior tribological performance with coefficient of friction (COF) of below 0.25 and wear rate of 8.2 × 10–5–15.2 × 10–5 mm3·N−1·m−1 at a wide temperature range from 25 to 800 °C, and the COF and the wear rate are slightly reduced with temperature increasing. The low COF and wear rate were attributed to the synergistic effects of Ag, BaF2/CaF2, Ag2MoO4 and BaMoO4. Graphic abstract: [Figure not available: see fulltext.]",

keywords = "Coating, High temperature, Self-lubricating, Tribological behavior",

author = "Li, \{Wen Sheng\} and Yang Sun and Wei Hu and Zhu, \{Sheng Yu\} and Zhai, \{Hai Min\} and Jun Yang and Fan, \{Xiang Juan\} and Liu, \{Wei Min\}",

note = "Publisher Copyright: {\textcopyright} 2020, The Nonferrous Metals Society of China and Springer-Verlag GmbH Germany, part of Springer Nature.",

year = "2021",

month = jul,

doi = "10.1007/s12598-020-01426-0",

language = "英语",

volume = "40",

pages = "1844--1850",

journal = "Rare Metals",

issn = "1001-0521",

publisher = "Springer International Publishing",

number = "7",

}

TY - JOUR

T1 - Tribological properties of plasma-sprayed nickel alloy matrix self-lubricating coating at elevated temperatures

AU - Li, Wen Sheng

AU - Sun, Yang

AU - Hu, Wei

AU - Zhu, Sheng Yu

AU - Zhai, Hai Min

AU - Yang, Jun

AU - Fan, Xiang Juan

AU - Liu, Wei Min

PY - 2021/7

Y1 - 2021/7

N2 - Abstract: A nickel alloy matrix high-temperature self-lubricating coating (77.5 wt% (Ni–Cr–Mo–Al)–12.5 wt% Ag–10 wt% BaF2/CaF2) was prepared by plasma spraying technique. Results show that the Vickers microhardness of coating is (2.9 ± 0.5) GPa, and the average bonding strength is about (35.6 ± 0.5) MPa. The coating rubbing against Inconel 718 superalloy pin exhibits superior tribological performance with coefficient of friction (COF) of below 0.25 and wear rate of 8.2 × 10–5–15.2 × 10–5 mm3·N−1·m−1 at a wide temperature range from 25 to 800 °C, and the COF and the wear rate are slightly reduced with temperature increasing. The low COF and wear rate were attributed to the synergistic effects of Ag, BaF2/CaF2, Ag2MoO4 and BaMoO4. Graphic abstract: [Figure not available: see fulltext.]

AB - Abstract: A nickel alloy matrix high-temperature self-lubricating coating (77.5 wt% (Ni–Cr–Mo–Al)–12.5 wt% Ag–10 wt% BaF2/CaF2) was prepared by plasma spraying technique. Results show that the Vickers microhardness of coating is (2.9 ± 0.5) GPa, and the average bonding strength is about (35.6 ± 0.5) MPa. The coating rubbing against Inconel 718 superalloy pin exhibits superior tribological performance with coefficient of friction (COF) of below 0.25 and wear rate of 8.2 × 10–5–15.2 × 10–5 mm3·N−1·m−1 at a wide temperature range from 25 to 800 °C, and the COF and the wear rate are slightly reduced with temperature increasing. The low COF and wear rate were attributed to the synergistic effects of Ag, BaF2/CaF2, Ag2MoO4 and BaMoO4. Graphic abstract: [Figure not available: see fulltext.]

KW - Coating

KW - High temperature

KW - Self-lubricating

KW - Tribological behavior

UR - https://www.scopus.com/pages/publications/85085578223

U2 - 10.1007/s12598-020-01426-0

DO - 10.1007/s12598-020-01426-0

M3 - 文章

AN - SCOPUS:85085578223

SN - 1001-0521

VL - 40

SP - 1844

EP - 1850

JO - Rare Metals

JF - Rare Metals

IS - 7

ER -

Tribological properties of plasma-sprayed nickel alloy matrix self-lubricating coating at elevated temperatures

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Keywords

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