Development of thermal spray powders for improved tribological and corrosive applications and cost-effective solutions

Ulla Kanerva, J. Lagerbom, P. Vuoristo

Research output: Contribution to journalArticleScientificpeer-review

10 Citations (Scopus)

Abstract

HVOF sprayed carbide/metal coatings are used widely to prevent wear and corrosion of engineering components.
However, in some specific applications additional properties, such as low friction surfaces with good sliding properties and/or more improved corrosion resistances with simultaneous high wear resistance are required. Often such properties are not obtained by using conventional commercial spray powder compositions. The cost of the spray powders and sprayed coating plays very often also an important role.
Therefore, cost-effective solutions are also needed. The aim of the present work is to describe the development of special hard metal powders with tailored powder compositions and structures. Experimental Cr3C2-25Ni + 10vol-% solid lubricant powders, WC-15% corrosion resistant metal binder powders, and WC-10Co-4Cr powder manufactured from recycled hard metal scrap were prepared by using the spray drying and sintering process.
The powders were sprayed by High-Velocity Oxy-Fuel (HVOF) spray process. The microstructures of the developed powders and coatings are reported.
Original languageEnglish
Pages (from-to)377-398
JournalInternational Journal of Materials and Product Technology
Volume28
Issue number3-4
DOIs
Publication statusPublished - 2007
MoE publication typeA1 Journal article-refereed

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Powders
Costs
Scrap metal
Corrosion
Metal coatings
Spray drying
Solid lubricants
Powder coatings
Sprayed coatings
Powder metals
Hot Temperature
Chemical analysis
Wear resistance
Binders
Carbides
Corrosion resistance
Sintering
Wear of materials
Friction
Coatings

Keywords

  • ProperPart

Cite this

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Development of thermal spray powders for improved tribological and corrosive applications and cost-effective solutions. / Kanerva, Ulla; Lagerbom, J.; Vuoristo, P.

In: International Journal of Materials and Product Technology, Vol. 28, No. 3-4, 2007, p. 377-398.

Research output: Contribution to journalArticleScientificpeer-review

TY - JOUR

T1 - Development of thermal spray powders for improved tribological and corrosive applications and cost-effective solutions

AU - Kanerva, Ulla

AU - Lagerbom, J.

AU - Vuoristo, P.

PY - 2007

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AB - HVOF sprayed carbide/metal coatings are used widely to prevent wear and corrosion of engineering components. However, in some specific applications additional properties, such as low friction surfaces with good sliding properties and/or more improved corrosion resistances with simultaneous high wear resistance are required. Often such properties are not obtained by using conventional commercial spray powder compositions. The cost of the spray powders and sprayed coating plays very often also an important role. Therefore, cost-effective solutions are also needed. The aim of the present work is to describe the development of special hard metal powders with tailored powder compositions and structures. Experimental Cr3C2-25Ni + 10vol-% solid lubricant powders, WC-15% corrosion resistant metal binder powders, and WC-10Co-4Cr powder manufactured from recycled hard metal scrap were prepared by using the spray drying and sintering process. The powders were sprayed by High-Velocity Oxy-Fuel (HVOF) spray process. The microstructures of the developed powders and coatings are reported.

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