Characterisations of chromium carbide-based coated combustor liner for gas turbines

Salmi Mohd Yunus, Mariyam Jameelah Ghazali, Wan Fathul Hakim W Zamrib, Ahmad Afiq Pauzi, Shuib Husin

Research output: Contribution to journalArticle

Abstract

A gas turbine combustor liner experienced visible surface damages during its normal operation of 8000 hours. Small amplitudes of vibration during the operation contributed to a surface degradation, mainly wear. A chromium-carbide based hard coating was deposited via plasma spray technique on the outer surface of a combustor liner of a gas turbine engine. It was found that after the operation, the coating hardness had increased more than 30% compared to its minimum initial hardness and reached up to 744 HV particularly in the crossfire tube collar mating areas. Comparison between the coated and the uncoated liners were carried out in order to show how much the wear scars have been minimized throughout the operation under severe temperature of approximately 1, 500°C. It was found that in this study the coating of chromium-carbide is capable to reduce the wear damage due to the work hardening effect of the liner and their mating surfaces.

Original languageEnglish
Pages (from-to)33-36
Number of pages4
JournalJurnal Teknologi
Volume76
Issue number10
DOIs
Publication statusPublished - 11 Oct 2015

Fingerprint

Combustors
Gas turbines
Carbides
Chromium
Wear of materials
Hardness
Coatings
Hard coatings
Strain hardening
Turbines
Plasmas
Degradation
Temperature

Keywords

  • Chromium carbide
  • Combustor liner
  • Gas turbine
  • Wear characteristics

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Characterisations of chromium carbide-based coated combustor liner for gas turbines. / Yunus, Salmi Mohd; Ghazali, Mariyam Jameelah; Zamrib, Wan Fathul Hakim W; Pauzi, Ahmad Afiq; Husin, Shuib.

In: Jurnal Teknologi, Vol. 76, No. 10, 11.10.2015, p. 33-36.

Research output: Contribution to journalArticle

Yunus, Salmi Mohd ; Ghazali, Mariyam Jameelah ; Zamrib, Wan Fathul Hakim W ; Pauzi, Ahmad Afiq ; Husin, Shuib. / Characterisations of chromium carbide-based coated combustor liner for gas turbines. In: Jurnal Teknologi. 2015 ; Vol. 76, No. 10. pp. 33-36.
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