Influence of boron content on the microstructure and tribological properties of Cr-B-N coatings in water lubrication

Qiang Ma; Fei Zhou; Song Gao; Qianzhi Wang; Kangmin Chen; Zhifeng Zhou; Lawrence Kwok-Yan Li

doi:10.1016/j.apsusc.2016.03.190

Author(s)

Qiang Ma
Fei Zhou
Song Gao
Qianzhi Wang
Kangmin Chen
Zhifeng Zhou

Detail(s)

Original language	English
Pages (from-to)	394-405
Journal / Publication	Applied Surface Science
Volume	377
Online published	28 Mar 2016
Publication status	Published - 30 Jul 2016

Link(s)

DOI	DOI https://doi.org/10.1016/j.apsusc.2016.03.190 Final Published version
	Check@CityULib
Link to Scopus	https://www.scopus.com/record/display.uri?eid=2-s2.0-84962749422&origin=recordpage
Permanent Link	https://scholars.cityu.edu.hk/en/publications/publication(13a45f70-5f07-4819-80d0-5da385920ab6).html

Abstract

Cr-B-N coatings with different boron contents were deposited on Si(1 0 0) wafers and 316 L stainless steels using unbalanced magnetron sputtering system by way of adjusting the CrB₂ target currents. The microstructure and mechanical properties of Cr-B-N coatings were investigated by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), white lightinterferometric three dimensional profilometer and nano-indentation tester, respectively. The tribological properties of Cr-B-N/SiC tribopairs in water were studied using ball-on-disk tribometer. The results showed that the Cr-B-N coatings showed a fine nanocomposite structure consisted of CrN nanograins and amorphous BN phase regardless of boron contents, and the typical columnar structure became featureless with increasing the CrB₂ target current. The hardness and reduced elastic modulus first increased to 28.9 GPa and 330 GPa at the CrB₂ target current of 2A, and then decreased gradually with further increasing the CrB₂ target current to 4A. As compared with the CrN/SiC tribopairs, the lowest friction coefficient of Cr-B-N/SiC ball tribopairs in water was 0.15, and the wear resistance of Cr-B-N coatings was effectively enhanced.

Research Area(s)

Cr-B-N coatings, Microstructure, Hardness, Friction and wear, Water lubrication

Citation Format(s)

[ RIS ] [ BibTeX ]

Influence of boron content on the microstructure and tribological properties of Cr-B-N coatings in water lubrication. / Ma, Qiang; Zhou, Fei; Gao, Song et al.
In: Applied Surface Science, Vol. 377, 30.07.2016, p. 394-405.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

Ma, Q, Zhou, F, Gao, S, Wang, Q, Chen, K, Zhou, Z & Li, LK-Y 2016, 'Influence of boron content on the microstructure and tribological properties of Cr-B-N coatings in water lubrication', Applied Surface Science, vol. 377, pp. 394-405. https://doi.org/10.1016/j.apsusc.2016.03.190

Ma, Q., Zhou, F., Gao, S., Wang, Q., Chen, K., Zhou, Z., & Li, L. K.-Y. (2016). Influence of boron content on the microstructure and tribological properties of Cr-B-N coatings in water lubrication. Applied Surface Science, 377, 394-405. https://doi.org/10.1016/j.apsusc.2016.03.190

Ma Q, Zhou F, Gao S, Wang Q, Chen K, Zhou Z et al. Influence of boron content on the microstructure and tribological properties of Cr-B-N coatings in water lubrication. Applied Surface Science. 2016 Jul 30;377:394-405. Epub 2016 Mar 28. doi: 10.1016/j.apsusc.2016.03.190

Ma, Qiang ; Zhou, Fei ; Gao, Song et al. / Influence of boron content on the microstructure and tribological properties of Cr-B-N coatings in water lubrication. In: Applied Surface Science. 2016 ; Vol. 377. pp. 394-405.