Mechanical properties of nanocrystalline HVOF coatings

Simo-Pekka Hannula, Teppo Fält, Erja Turunen, Timo Manninen

Research output: Chapter in Book/Report/Conference proceedingConference article in proceedingsScientificpeer-review


Thermal spraying (TS) is increasingly used to deposit thick wear resistant coatings on machine and equipment parts. Therefore, it is of uttermost importance to know their mechanical properties in order to tailor and optimize the coatings for various applications. Typically properties of the thermal sprayed coatings are inferior as compared to corresponding bulk materials for various reasons. Furthermore, measurement of mechanical properties of coatings is much more tedious and difficult than deriving bulk properties. In this paper, mechanical properties of alumina based nanocrystalline coatings and the measurement techniques developed are reported. A model relating the microstructure of the sprayed coatings and their properties is introduced and discussed.
Original languageEnglish
Title of host publicationMaterials Science Forum
Place of PublicationSwitzerland
Pages114 - 117
Publication statusPublished - 2006
MoE publication typeA4 Article in a conference publication
Event7th International Symposium on Eco-Materials Processing and Design, ISEPD-7 - Chengdu, China
Duration: 8 Jan 200611 Jan 2006

Publication series

SeriesMaterials Science Forum


Conference7th International Symposium on Eco-Materials Processing and Design, ISEPD-7


  • Coatings
  • thermal spraying
  • microstructure
  • hardness
  • elastic modulus
  • fracture toughness
  • modeling

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