Flame Sprayed and Atmospheric Plasma Sprayed FeCrBSi Coatings and Their Skid and Wear Resistance

WU Qing-dan, LIU Li-ming, XU Hai-feng, XIAO Jin-kun, ZHANG Chao

Surface Technology ›› 2017, Vol. 46 ›› Issue (7) : 104-109.

PDF(7692 KB)
PDF(7692 KB)
Surface Technology ›› 2017, Vol. 46 ›› Issue (7) : 104-109. DOI: 10.16490/j.cnki.issn.1001-3660.2017.07.017
Surface Friction Wear and Lubrication

Flame Sprayed and Atmospheric Plasma Sprayed FeCrBSi Coatings and Their Skid and Wear Resistance

  • WU Qing-dan, LIU Li-ming, XU Hai-feng, XIAO Jin-kun, ZHANG Chao
Author information +
History +

Abstract

The work aims to investigate and compare skid and wear resistance of FeCrBSi coatings by preparing the coatings on 304 stainless steel substrate by atmospheric plasma spray (APS) and flame spray (FS) techniques, respectively. Microstructure and structure of the coatings were analyzed with optical microscope (OM), field-emission scanning electron microscope (FE-SEM) and X-ray diffractometer (XRD), and microhardness with Vickers hardness tester. Friction coefficients and wear volume of the coatings under dry lubrication conditions were measured with friction-abrasion testing machine and three-dimensional optical microscope. Fe-CrBSi coatings prepared in both spraying methods were porous and rarely oxidized during the spraying process. APS coating exhibited considerably higher hardness (837 HV0.1) than the FS coating (749 HV0.1). In friction test, wear rate of APS coating was (9.5±0.49)×106 m3/(N?m), much lower than that of FS coating ((38.63±2.37)×106 m3/(N?m)). However, the friction coefficients of the two coatings were very close, the value between was 0.6~0.7 at 10 N load and 2 Hz frequency. The main wear mechanism of the two coatings was fatigue wear. The as-sprayed FeCrBSi coatings have good skid and wear resistance, and the performance of APS coating is superior to that of FS coating.

Key words

atmospheric plasma spray; flame spray; FeCrBSi; non-skid coating; wear resistance

Cite this article

Download Citations
WU Qing-dan, LIU Li-ming, XU Hai-feng, XIAO Jin-kun, ZHANG Chao. Flame Sprayed and Atmospheric Plasma Sprayed FeCrBSi Coatings and Their Skid and Wear Resistance[J]. Surface Technology. 2017, 46(7): 104-109

Funding

Supported by Cooperation Funding of Yangzhou City-Yangzhou University (YZ2016254), the Jiangsu Natural Science Foundation of China (BK20140487, BK20160472)
PDF(7692 KB)

Accesses

Citation

Detail

Sections
Recommended

/