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Influence of residual stress on the adhesive behavior of detonation gun sprayed WC-Co coatings

Wang, Tiegang LU ; Liu, Yanmei; Wang, Qimin; Gong, Jun; Sun, Chao and Kim, Kwang Ho (2012) In Current Applied Physics 12. p.59-62
Abstract
The residual stresses generated during D-Gun spraying process act as pre-existing stresses and seriously affect the various types of coating performance. To produce a reliable coating, it is necessary to know the influence of residual stress on the adhesive behavior of coating/substrate system. Based on the residual stress formula for thick coatings and accurate curvature measurements, the residual stresses of D-Gun sprayed WC-Co coatings were obtained. And a strong link was built between the residual stress and the adhesive strength of the coating, namely, the compressive stress in the coating could significantly improve the adhesion, whereas the tensile stress weakened the adhesion. The larger compressive residual stress is in the... (More)
The residual stresses generated during D-Gun spraying process act as pre-existing stresses and seriously affect the various types of coating performance. To produce a reliable coating, it is necessary to know the influence of residual stress on the adhesive behavior of coating/substrate system. Based on the residual stress formula for thick coatings and accurate curvature measurements, the residual stresses of D-Gun sprayed WC-Co coatings were obtained. And a strong link was built between the residual stress and the adhesive strength of the coating, namely, the compressive stress in the coating could significantly improve the adhesion, whereas the tensile stress weakened the adhesion. The larger compressive residual stress is in the coating, the stronger adhesion between the coating and substrate. (C) 2012 Elsevier B.V. All rights reserved. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Adhesion, Interface, Residual stress, D-Gun spraying, WC-Co coating
in
Current Applied Physics
volume
12
pages
59 - 62
publisher
Elsevier
external identifiers
  • wos:000310941500012
  • scopus:84867552822
ISSN
1567-1739
DOI
10.1016/j.cap.2012.02.019
language
English
LU publication?
yes
id
3e2b42fd-9c85-4ce3-abbc-22f68c1209fc (old id 3252262)
date added to LUP
2012-12-27 10:09:03
date last changed
2017-07-02 04:05:13
@article{3e2b42fd-9c85-4ce3-abbc-22f68c1209fc,
  abstract     = {The residual stresses generated during D-Gun spraying process act as pre-existing stresses and seriously affect the various types of coating performance. To produce a reliable coating, it is necessary to know the influence of residual stress on the adhesive behavior of coating/substrate system. Based on the residual stress formula for thick coatings and accurate curvature measurements, the residual stresses of D-Gun sprayed WC-Co coatings were obtained. And a strong link was built between the residual stress and the adhesive strength of the coating, namely, the compressive stress in the coating could significantly improve the adhesion, whereas the tensile stress weakened the adhesion. The larger compressive residual stress is in the coating, the stronger adhesion between the coating and substrate. (C) 2012 Elsevier B.V. All rights reserved.},
  author       = {Wang, Tiegang and Liu, Yanmei and Wang, Qimin and Gong, Jun and Sun, Chao and Kim, Kwang Ho},
  issn         = {1567-1739},
  keyword      = {Adhesion,Interface,Residual stress,D-Gun spraying,WC-Co coating},
  language     = {eng},
  pages        = {59--62},
  publisher    = {Elsevier},
  series       = {Current Applied Physics},
  title        = {Influence of residual stress on the adhesive behavior of detonation gun sprayed WC-Co coatings},
  url          = {http://dx.doi.org/10.1016/j.cap.2012.02.019},
  volume       = {12},
  year         = {2012},
}