CrNi3MoVA钢表面磁控溅射Ta涂层的摩擦磨损性能

doi:10.11896/j.issn.1005-023X.2018.18.020

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Abstract In order to prolong the life time of gun barrel, a Ta coating was prepared by means of magnetron sputtering technology. The as-deposited coating consists of a body-centered cubic α-Ta and a metastable tetragonal β-Ta,and completely transforms into α-Ta after 3 h vacuum annealing. The hardness, elasticity modulus and friction coefficient of the α-Ta coating were tested by utilizing nanoindentor and friction and wear testing machine. In contrast to the traditional hard chrome coating, the performance of friction and wear of the α-Ta coating was investigated by employing scanning electron microscope (SEM), energy dispersive spectrometer (EDS) and grazing incidence X-ray diffraction (GIXRD) to analyze the microstructure of the coatings. The results indicated that the friction coefficient of the α-Ta coating (0.70—0.80) is slightly lower than that of the hard chrome coating (0.75—0.85), and the wear mechanism of the α-Ta coating is mainly characterized as adherent wear while that of the hard chromium coating is fatigue and adherent one.

Key words： CrNi3MoVA steel Ta coating hard chrome coating friction and wear

Published: 18 October 2018

CLC number:	TB304
	TB35

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	Articles by authors
	GUO Ce’ an
	ZHOU Feng
	HU Ming
	ZHAO Boyuan
	JIN Hao
	ZHANG Jian

Cite this article:

GUO Ce’ an,ZHOU Feng,HU Ming, et al. Performance of Friction and Wear of Magnetron Sputtered Ta Coating on CrNi3MoVA Steel[J]. Materials Reports, 2018, 32(18): 3213-3216.

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http://www.mater-rep.com/EN/10.11896/j.issn.1005-023X.2018.18.020 OR http://www.mater-rep.com/EN/Y2018/V32/I18/3213

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