Optimization of plasma spray parameters on the mechanical properties of agglomerated Al2O3-13%TiO2 coated mild steel

N. H N Yusoff, Mariyam Jameelah Ghazali, M. C. Isa, A. R. Daud, Andanastuti Muchtar, S. M. Forghani

Research output: Contribution to journalArticle

30 Citations (Scopus)

Abstract

This paper discusses the effect of plasma spray parameters of deposited agglomerated nano Al2O3-13%TiO2 powders on commercial marine-grade mild steels. Prior to the coating work, the nanopowders were subjected to a two-level factorial design of experiment to optimize the operational spray parameters, namely, the primary gas pressure, the carrier gas pressure, and the powder feed rate. These operational spray parameters potentially affect the following responses of the coatings: microhardness, wear rate, and surface roughness. The significant effect on surface roughness is due to the interaction factor with the carrier gas pressure. However, by changing the carrier gas pressure and the powder feed rate, an insignificant effect on the microhardness and wear rate is noted. In general, agglomerated Al2O3-13%TiO2 nanopowder-coated steels, with the lowest primary pressure of 40psi, carrier gas pressure of 20psi, and the highest powder feed rate of 3rpm, are most preferred.

Original languageEnglish
Pages (from-to)504-508
Number of pages5
JournalMaterials and Design
Volume39
DOIs
Publication statusPublished - Aug 2012

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Carbon steel
Plasmas
Gases
Mechanical properties
Powders
Microhardness
Surface roughness
Wear of materials
Coatings
Steel
Design of experiments

Keywords

  • Agglomerated alumina-titania
  • Coating
  • Plasma spray

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Science(all)

Cite this

Optimization of plasma spray parameters on the mechanical properties of agglomerated Al2O3-13%TiO2 coated mild steel. / Yusoff, N. H N; Ghazali, Mariyam Jameelah; Isa, M. C.; Daud, A. R.; Muchtar, Andanastuti; Forghani, S. M.

In: Materials and Design, Vol. 39, 08.2012, p. 504-508.

Research output: Contribution to journalArticle

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AU - Isa, M. C.

AU - Daud, A. R.

AU - Muchtar, Andanastuti

AU - Forghani, S. M.

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AB - This paper discusses the effect of plasma spray parameters of deposited agglomerated nano Al2O3-13%TiO2 powders on commercial marine-grade mild steels. Prior to the coating work, the nanopowders were subjected to a two-level factorial design of experiment to optimize the operational spray parameters, namely, the primary gas pressure, the carrier gas pressure, and the powder feed rate. These operational spray parameters potentially affect the following responses of the coatings: microhardness, wear rate, and surface roughness. The significant effect on surface roughness is due to the interaction factor with the carrier gas pressure. However, by changing the carrier gas pressure and the powder feed rate, an insignificant effect on the microhardness and wear rate is noted. In general, agglomerated Al2O3-13%TiO2 nanopowder-coated steels, with the lowest primary pressure of 40psi, carrier gas pressure of 20psi, and the highest powder feed rate of 3rpm, are most preferred.

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