INCREASING THE WEAR RESISTANCE OF Al-Mg COMPONENTS USING THERMAL-SPRAY COATINGS

被引：3

作者：

Lukauskaite, Raimonda ^{[1
]}

Cernasejus, Olegas ^{[1
]}

Skamat, Jelena ^{[2
]}

Asadauskas, Svajus ^{[3
]}

Rucinskiene, Alma ^{[3
]}

Kalpokaite-Dickuviene, Regina ^{[4
]}

Visniakov, Nikolaj ^{[1
]}

机构：

[1] Vilnius Gediminas Tech Univ, Fac Mech, 28 J Basanavinaus St, LT-03224 Vilnius, Lithuania

[2] Vilnius Gediminas Tech Univ, Sci Inst Thermal Insulat, 28 Linkmemi St, LT-08217 Vilnius, Lithuania

[3] Inst Chem, Ctr Phys Sci & Technol, 3 Saulatch Av, LT-10222 Vilnius, Lithuania

[4] Lithuanian Energy Inst, 3 Breslaujos St, LT-44403 Kaunas, Lithuania

来源：

MATERIALI IN TEHNOLOGIJE | 2017年 / 51卷 / 04期

关键词：

aluminium-magnesium substrate; NiCrSiBFe coatings; plasma spray; sliding wear; adhesion strength; ALLOY COMPOSITE COATINGS; CAST-IRON COATINGS; TRIBOLOGICAL PROPERTIES; NICRBSI COATINGS; ALUMINUM-ALLOY; PLASMA SPRAY; MICROSTRUCTURE; PARTICLES; CORROSION; PERFORMANCE;

D O I：

10.17222/mit.2016.255

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In the present work, plasma-spray technology was applied as a means to improve the durability of Al-Mg alloy parts. NiCrSiBFe coatings deposited on aluminium-magnesium alloy substrates with different thickness values were studied. Before spraying, the surfaces of aluminium-magnesium alloy were modified upon applying different surface pre-treatment methods. The phase composition, microstructure, microhardness, porosity and adhesion of the deposited coatings were characterized. Ball-on-plate wear tests of the NiCrSiBFe coatings were carried out in dry and lubricated conditions, using a scanning electron microscope to characterize the worn track and the wear mechanism. The correlation of the coating porosity and the adhesion strength with the thickness of a deposited layer was determined. The results revealed that the plasma-sprayed NiCrSiBFe coatings, compared with the uncoated Al-Mg substrate, provide both a stable friction coefficient and an improved wear resistance, which is about two times better under dry sliding and about five times better under lubricated sliding.

引用

页码：673 / 678

页数：6

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