Mechanical properties of plasma sprayed nanostructured TiO2 coatings on mild steel

S. M. Forghani, Mariyam Jameelah Ghazali, Andanastuti Muchtar, A. R. Daud

Research output: Contribution to journalArticle

17 Citations (Scopus)

Abstract

This paper discusses the effects of plasma spray parameters on the mechanical properties of nanostructured TiO2 coatings deposited on mild steel substrates. The design of experiment method was applied to investigate the significant effects of each property and to optimize the operational spray parameters. Plasma power, powder feed rate, and stand-off distance were selected as independent variables. Agglomerated and sintered nano-TiO2 powder was deposited on A-36 commercial mild steel. The microstructural and mechanical properties of the coatings such as porosity, microhardness, surface roughness, and wear rate were evaluated. Both plasma power and powder feed rate were found to be the main factors affecting all four responses. It was also noted that the stand-off distance was a significant factor mainly in influencing the surface roughness of the coatings. All in all, the optimized properties can be achieved by applying a plasma power of 30 KW (high level), a powder feed rate of 22 g/min (high level), and a stand-off distance of 80 mm (low level).

Original languageEnglish
Pages (from-to)7049-7056
Number of pages8
JournalCeramics International
Volume40
Issue number5
DOIs
Publication statusPublished - Jun 2014

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Powders
Carbon steel
Plasmas
Coatings
Mechanical properties
Surface roughness
Design of experiments
Microhardness
Porosity
Wear of materials
Substrates

Keywords

  • B. Electron microscopy
  • C. Mechanical properties
  • D. TiO
  • E. Substrates

ASJC Scopus subject areas

  • Ceramics and Composites
  • Process Chemistry and Technology
  • Electronic, Optical and Magnetic Materials
  • Surfaces, Coatings and Films
  • Materials Chemistry

Cite this

Mechanical properties of plasma sprayed nanostructured TiO2 coatings on mild steel. / Forghani, S. M.; Ghazali, Mariyam Jameelah; Muchtar, Andanastuti; Daud, A. R.

In: Ceramics International, Vol. 40, No. 5, 06.2014, p. 7049-7056.

Research output: Contribution to journalArticle

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