The Effect of Argon Controlled Pre-Oxidation on TGO Formation of NiCoCrAlYTa/YSZ

I.S. Mohd Zulkifli; Muhamad Azizi Mat Yajid; Mohd Hasbullah Idris; M. Daroonparvar

doi:10.4028/www.scientific.net/KEM.694.155

Paper Titles

Effect of Dipping Numbers on the Crystalline Phase and Microstructure of Ag-TiO₂ Coating
p.133

Influence of HCl Content and Ageing Time on TiO₂ Coating Formation in Acidic Sol-Gel Solutions
p.138

Adhesion Improvement of Nickel Electrodeposited on Aluminum Alloy 7075 by Modified Single Zincating Process
p.143

Electroless Ni-Co-Cu-P Alloy Deposition in Alkaline Hypophosphite Based Bath
p.151

The Effect of Argon Controlled Pre-Oxidation on TGO Formation of NiCoCrAlYTa/YSZ
p.155

Effect of Additives on the Characteristic of Ag-TiO₂ Coating Deposited on Specially Made Unglazed Ceramic Tile
p.160

Corrosion Mechanism of Tungsten Carbide-Based Coatings in Different Aqueous Media
p.167

Microscopic Study on the Corrosion of Underground Pipeline
p.172

The Effect of Spent Bleach Earth on the Properties of Sintered Green Glass Ceramic Composite
p.179

HomeKey Engineering MaterialsKey Engineering Materials Vol. 694The Effect of Argon Controlled Pre-Oxidation on...

The Effect of Argon Controlled Pre-Oxidation on TGO Formation of NiCoCrAlYTa/YSZ

Abstract:

Thermally grown oxide (TGO) plays important roles in thermal barrier coating system (TBC) for high temperature application such as in aircraft gas turbine engine blades (GTE). The TGO formed between the bond coat and topcoat interface can increase oxidation resistance to creep of GTE blades by minimizing oxygen diffusion into the metal substrate. In this research a NiCoCrAlYTa metallic bond coat was deposited on Inconel 625 substrate using two methods of deposition namely; high velocity oxy-fuel (HVOF) and atmospheric plasma spray (APS). After coating process, both types of samples underwent pre-oxidation in argon furnace for 12-24 hours at 1000 °C. Results showed that the TGO formation for samples in which the bond coat deposited via HVOF method produced much thinner and continuous TGO formation compared to APS deposition. This TGO characteristic is very useful to lengthen the lifetime of the metals substrate.

You might also be interested in these eBooks

View Preview

Info:

Periodical:

Key Engineering Materials (Volume 694)

Pages:

155-159

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.694.155

Citation:

Cite this paper

Online since:

May 2016

Authors:

I.S. Mohd Zulkifli, Muhamad Azizi Mat Yajid, Mohd Hasbullah Idris, M. Daroonparvar

Keywords:

Air Plasma Spray, Pre-Oxidation, Thermal Barrier Coating, Thermally Grown Oxide, YSZ

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] G. Di Girolamo, M. Alfano, L. Pagnotta, A. Taurino, J. Zekonyte, R. J. K. Wood, On the early stage isothermal oxidation of APS CoNiCrAlY coatings, J. Mater. Eng. Perform. 21 (2012) 1989-(1997).

DOI: 10.1007/s11665-011-0115-x

Google Scholar

[2] W. R. Chen, E. Irissou, X. Wu, J. Legoux, B. R. Marple, The Oxidation Behavior of TBC with Cold Spray CoNiCrAlY Bond Coat, J. Therm. Spray Technol. 20 (2011) 132-138.

DOI: 10.1007/s11666-010-9601-1

Google Scholar

[3] M. Daroonparvar, M. S. Hussain, M. Azizi, M. Yajid, The role of formation of continues thermally grown oxide layer on the nanostructured NiCrAlY bond coat during thermal exposure in air, Appl. Surf. Sci. 261 (2012) 287-297.

DOI: 10.1016/j.apsusc.2012.08.002

Google Scholar

[4] W. R. Chen, X. Wu, B. R. Marple, D. R. Nagy, P. C. Patnaik, TGO growth behaviour in TBCs with APS and HVOF bond coats, Surf. Coatings Technol. 202 (2008) 2677-2683.

DOI: 10.1016/j.surfcoat.2007.09.042

Google Scholar

[5] M. J. Lance, K. A. Unocic, J. A. Haynes, B. A. Pint, Surface & Coatings Technology APS TBC performance on directionally-solidified superalloy substrates with HVOF NiCoCrAlYHfSi bond coatings, Surf. Coat. Technol. (2015) 8-12.

DOI: 10.1016/j.surfcoat.2015.08.067

Google Scholar

[6] A. Keyvani, M. Saremi, M. Heydarzadeh, Z. Valefi, M. Yeganeh, A. Kobayashi, Microstructural stability of nanostructured YSZ - alumina composite TBC compared to conventional YSZ coatings by means of oxidation and hot corrosion tests, J. Alloys Compd. 600 (2014).

DOI: 10.1016/j.jallcom.2014.02.004

Google Scholar

[7] V. Kumar, K. Balasubramanian, Progress in Organic Coatings Progress update on failure mechanisms of advanced thermal barrier coatings : A review, Prog. Org. Coatings 90 (2016) 54-82.

DOI: 10.1016/j.porgcoat.2015.09.019

Google Scholar