Residual stress development in cold sprayed Al, Cu and Ti coatings

Tomi Suhonen (Corresponding Author), Tommi Varis, S. Dosta, M. Torrell, J.M. Guilemany

Research output: Contribution to journalArticleScientificpeer-review

58 Citations (Scopus)

Abstract

Residual stresses play an important role in the formation and performance of thermal spray coatings. A curvature-based approach where the substrate–coating system deflection and temperature are monitored throughout the coating deposition process was used to determine residual stress formation during cold spray deposition of Al, Cu and Ti coatings. The effect of substrate material (carbon steel, stainless steel and aluminium) and substrate pre-treatment (normal grit blasting, grit blasting with the cold spray system and grinding for carbon steel substrate) were studied for all coating materials with optimized deposition parameters. Mainly compressive stresses were expected because of the nature of cold spraying, but also neutral as well as tensile stresses were formed for studied coatings. The magnitudes of the residual stresses were mainly dependent on the substrate/coating material combination, but the surface preparation was also found to have an effect on the final stress stage of the coating.
Original languageEnglish
Pages (from-to)6329-6337
Number of pages8
JournalActa Materialia
Volume61
Issue number17
DOIs
Publication statusPublished - 2013
MoE publication typeA1 Journal article-refereed

Fingerprint

Residual stresses
Coatings
Blasting
Substrates
Carbon steel
Stainless Steel
Spraying
Aluminum
Compressive stress
Tensile stress
Stainless steel
Temperature

Keywords

  • cold spraying
  • residual stresses
  • aluminium
  • copper
  • titanium
  • ProperTune

Cite this

Suhonen, Tomi ; Varis, Tommi ; Dosta, S. ; Torrell, M. ; Guilemany, J.M. / Residual stress development in cold sprayed Al, Cu and Ti coatings. In: Acta Materialia. 2013 ; Vol. 61, No. 17. pp. 6329-6337.
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abstract = "Residual stresses play an important role in the formation and performance of thermal spray coatings. A curvature-based approach where the substrate–coating system deflection and temperature are monitored throughout the coating deposition process was used to determine residual stress formation during cold spray deposition of Al, Cu and Ti coatings. The effect of substrate material (carbon steel, stainless steel and aluminium) and substrate pre-treatment (normal grit blasting, grit blasting with the cold spray system and grinding for carbon steel substrate) were studied for all coating materials with optimized deposition parameters. Mainly compressive stresses were expected because of the nature of cold spraying, but also neutral as well as tensile stresses were formed for studied coatings. The magnitudes of the residual stresses were mainly dependent on the substrate/coating material combination, but the surface preparation was also found to have an effect on the final stress stage of the coating.",
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Suhonen, T, Varis, T, Dosta, S, Torrell, M & Guilemany, JM 2013, 'Residual stress development in cold sprayed Al, Cu and Ti coatings', Acta Materialia, vol. 61, no. 17, pp. 6329-6337. https://doi.org/10.1016/j.actamat.2013.06.033

Residual stress development in cold sprayed Al, Cu and Ti coatings. / Suhonen, Tomi (Corresponding Author); Varis, Tommi; Dosta, S.; Torrell, M.; Guilemany, J.M.

In: Acta Materialia, Vol. 61, No. 17, 2013, p. 6329-6337.

Research output: Contribution to journalArticleScientificpeer-review

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