Paper Title:
Oxidation Behavior and Residual Stress in Thermally Grown Oxides of Detonation and High Velocity Oxygen Fuel Sprayed NiCrAlY Coatings
  Abstract

NiCrAlY coatings were prepared by the detonation spraying (DS) and high velocity oxygen fuel (HVOF) spraying processes, respectively. The DS NiCrAlY coating has higher oxidation rate than the HVOF NiCrAlY coating at 1100 oC due to its rougher surface and more mixed oxides. The residual compressive stress in thermally grown oxides (TGO) on the DS NiCrAlY coating is higher than that on the HVOF coating because the θ-Al2O3 to? α-Al2O3 transformation causes the tensile stress in the TGO on the HVOF coating.

  Info
Periodical
Materials Science Forum (Volumes 546-549)
Edited by
Yafang Han et al.
Pages
1707-1712
DOI
10.4028/www.scientific.net/MSF.546-549.1707
Citation
Z.X. Chen, F.H. Yuan, S. J. Zhu, Z. G. Wang, "Oxidation Behavior and Residual Stress in Thermally Grown Oxides of Detonation and High Velocity Oxygen Fuel Sprayed NiCrAlY Coatings", Materials Science Forum, Vols. 546-549, pp. 1707-1712, 2007
Online since
May 2007
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