Please use this identifier to cite or link to this item: http://hdl.handle.net/10316/4481
Title: Study by X-ray diffraction and mechanical analysis of the residual stress generation during thermal spraying
Authors: Pina, J. 
Dias, A. 
Lebrun, J. L. 
Keywords: Thermal spray coatings; Atmospheric plasma spraying; High velocity oxygen fuel; Residual stresses; X-ray stress evaluation
Issue Date: 2003
Citation: Materials Science and Engineering A. 347:1-2 (2003) 21-31
Abstract: Thermally sprayed coatings are formed by the deposition of molten or partially molten particles, propelled onto a substrate where they impact, spread and solidify rapidly. Residual stresses are expected within the sprayed deposit as a consequence of the release of thermal and kinetic energies. A wide range of materials and two spraying techniques are considered in this study, namely atmospheric plasma spraying (APS) and high-velocity oxygen fuel. Stresses were determined by the X-ray diffraction (XRD) method. The results were compared with those calculated by mechanical analysis of stress relief in coatings detached from the substrate. Comparison of the results for adherent and free-standing coatings shows that the residual stress state can be resolved in terms of the components suggested by models that propose two stages of stress generation: quenching stresses and secondary-cooling stresses. The in-depth distribution of residual stresses, through the coating thickness, is discussed in terms of the nature of the coating system.
URI: http://hdl.handle.net/10316/4481
Rights: openAccess
Appears in Collections:FCTUC Física - Artigos em Revistas Internacionais

Files in This Item:
File Description SizeFormat
file4ccd1dde07844a4b82f367670be7af26.pdf1.03 MBAdobe PDFView/Open
Show full item record

Page view(s) 50

344
checked on Nov 20, 2019

Download(s) 50

237
checked on Nov 20, 2019

Google ScholarTM

Check


Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.