Sage Journals: Discover world-class research

Abstract

To improve the microstructure density of high-velocity arc spraying coating and enhance its adhesive strength and wear resistance, a plasma remelting investigation of the FeNiCrAl sprayed coating was carried out in this study. The microstructure and phase composition of the sprayed coating and the remelted coating were compared by using metalloscope, scanning electron microscope and X-ray diffractometer. The microhardness distribution and friction wear characteristics of the plasma remelted FeNiCrAl sprayed coating were investigated by microhardness tester and CETR sliding friction wear testing machine. The results showed that the remelted coating has more compact microstructure and presents metallurgical bonding with the substrate. The generation of hard phases such as (Fe,Cr)₇C₃ and Cr₂₃C₆ as well as solid solution (Fe,Cr) increases the microhardness of the remelted coating significantly, about 1.4 times higher than that of the sprayed coating. According to sliding friction wear test, the abrasion losses of the sprayed coating under 10 N and 20 N loads are 4.6 and 10.5 times higher than those of the remelted coating, indicating the better wear resistance of the remelted coating.

Keywords

Plasma remelting high-velocity arc spraying FeNiCrAl wear resistance microstructure

Get full access to this article

View all access options for this article.

References

Tian

Wei

et al.

High velocity arc spraying for automotive industry. Rare Metal Mater Eng 2012; 41: 168–171.

Guo

Zhang

et al.

Fabrication and characterization of thermal-sprayed Fe-based amorphous/nanocrystalline composite coatings: an overview. J Thermal Spray Tech 2014; 23: 1157–1180.

Tian

Wei

Chen

et al.

Properties of the FeAlCr/3Cr13 composite coating applied in remanufacturing crankshaft by high velocity arc spraying. Rare Metal Mater Eng 2014; 43: 727–732.

Zhan

et al.

Technics and performance analysis of Monel alloy coating prepared by high velocity arc spraying. Mater Res Innovat 2013; 17: S112–S114.

Matejicek

Holub

. Laser remelting of plasma-sprayed tungsten coatings. J Thermal Spray Tech 2014; 23: 750–754.

Majumdar

. Development of in-situ composite surface on mild steel by laser surface alloying with silicon and its remelting. Surf Coating Tech 2010; 205: 1820–1825.

Cui

Meng

Xiao

et al.

Microstructure and properties of plasma remelted AZ91D magnesium alloy. Trans Nonferrous Met Soc China 2015; 25: 30–35.

Cui

Song

. Laser surface remelting of Fe-based alloy coatings deposited by HVOF. Surf Coating Tech 2012; 206: 2388–2395.

Dudek

Wronska

Adamczyk

. Surface remelting of 316L+434L sintered steel: microstructure and corrosion resistance. J Solid State Electrochem 2014; 18: 2973–2981.

10.

Dariusz

Andrzej

Adam

et al.

Microstructure, microhardness and corrosion resistance of satellite-6 coatings reinforced with WC particles using laser cadding. Optic Laser Tech 2015; 68: 191–201.

11.

Tian

Wei

Chen

et al.

Wear behavior of high velocity arc spraying FeNiCrAlBRE/Ni95Al composite coatings. Phys Procedia 2013; 50: 282–287.

12.

Palraj

Selvaraj

Maruthan

et al.

Corrosion and wear resistance behavior of nano-silica epoxy composite coatings. Progr Org Coating 2015; 81: 132–139.

13.

Guo

Tian

Huang

et al.

Microstructure and tribologial properties of laser-remelted Ni-based WC coatings obtained by plasma spraying. J Russ Laser Res 2015; 36: 48–58.

Research on wear resistance of plasma remelted FeNiCrAl sprayed coating

Abstract

Keywords

Get full access to this article

References