Correlation between residual stresses and adhesion of plasma sprayed coatings: effects of a post-annealing treatment

2002 ◽  
Vol 420-421 ◽  
pp. 438-445 ◽  
Author(s):  
C Godoy ◽  
E.A Souza ◽  
M.M Lima ◽  
J.C.A Batista
Keyword(s):  
Residual Stresses ◽  
Annealing Treatment ◽  
Post Annealing ◽  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings

Deposition-induced residual stresses in plasma-sprayed coatings

2004 ◽  
Vol 187 (2-3) ◽  
pp. 307-319 ◽  
Author(s):  
Zhenghao Gan ◽  
Heong Wah Ng ◽  
Appuswamy Devasenapathi
Keyword(s):  
Residual Stresses ◽  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings

Generation mechanisms of residual stresses in plasma-sprayed coatings

Vacuum ◽  
1990 ◽  
Vol 41 (4-6) ◽  
pp. 1297-1299 ◽  
Author(s):  
S Kuroda ◽  
T Fukushima ◽  
S Kitahara
Keyword(s):  
Residual Stresses ◽  
Plasma Sprayed Coatings ◽  
Generation Mechanisms ◽  
Plasma Sprayed ◽  
Sprayed Coatings

Influence of the Torch to Substrate Velocity and Resulting Temperature on the Residual Stresses in Alumina Plasma Sprayed Coatings

1997 ◽  
Author(s):  
A.C. Leger ◽  
A. Grimaud ◽  
P. Fauchais ◽  
G. Delluc
Keyword(s):  
Residual Stresses ◽  
Displacement Sensor ◽  
Columnar Growth ◽  
Coating Microstructure ◽  
Plasma Sprayed Coatings ◽  
Stress Formation ◽  
Flat Beam ◽  
Plasma Sprayed ◽  
Sprayed Coatings

Abstract A system, developed in the laboratory, allows to record in situ the deformation of a flat beam with a displacement sensor and so to analyse stress formation during spraying and upon cooling with fixed or rotating substrates. The beam is fixed onto a pair of knife edges by springs. The knife edges are disposed on a water-cooled rotating cylindrical substrate holder and the beam substrate (2 x 15 x 100 mm3) is parallel to the holder axis. The torch is moved back and forth parallel to the holder axis and the beam temperature is recorded by a thermocouple spot welded to it and also by an IR pyrometer. The influence of beam temperature for a given torch/substrate velocity on the residual stresses is studied for alumina and zirconia coatings. With fixed substrates a sharp increase of the residual stresses related to coating microstructure exists for a transition temperature around 600°C. It seems to correspond to a columnar growth throughout the layered splats. The effect of the torch to substrate velocity and so the pass thickness is studied too.

CHARACTERIZATION OF AS-SPRAYED AND LASER-TREATED ZIRCONIA-BASED PLASMA SPRAYED COATINGS

1990 ◽  
Vol 51 (C5) ◽  
pp. C5-393-C5-402
Author(s):  
A. FERRIERE ◽  
G. FLAMANT ◽  
J.-F. ROBERT ◽  
P. PEKSHEV ◽  
I. SMUROV ◽  
...  
Keyword(s):  
Plasma Sprayed Coatings ◽  
Plasma Sprayed ◽  
Sprayed Coatings
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