Thermo-mechanical testing of TiO2 functional coatings using friction stir processing

Maximilian Stummer, Norbert Enzinger, Christopher Weiß

Research output: Contribution to journalArticleResearchpeer-review

Abstract

TiO2 micro powder was deposited onto an aluminium substrate by Atmospheric Plasma Spraying resulting in 200µm thick coatings. These coatings were characterized, whereby typical layer properties like porosity, layer thickness and hardness were investigated. Subsequently, a thermo-mechanical load was applied on the TiO2 coating by Friction Stir Processing. This testing procedure shows several advantages. First, specific load cycles can be applied at high accuracy using specific parameter sets. Second, different tool geometries can be used for testing, resulting in countless possible load cases and testing scenarios. As a result, the thermal properties of the TiO2 coating were investigated and compared as a function of a stepwise increased testing load. To complete the experimental results, a numerical simulation of the testing process was set up to estimate the transient heat flow of the TiO2 coating during Friction Stir Processing.
Original languageEnglish
Pages (from-to)818-824
JournalMaterials Testing
Volume6
Issue number9
DOIs
Publication statusPublished - 2018

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Mechanical testing
Friction
Coatings
Processing
Testing
Load testing
Plasma spraying
Aluminum
Powders
Loads (forces)
Thermodynamic properties
Porosity
Hardness
Heat transfer
Geometry
Computer simulation
Substrates

Cite this

Thermo-mechanical testing of TiO2 functional coatings using friction stir processing. / Stummer, Maximilian; Enzinger, Norbert; Weiß, Christopher.

In: Materials Testing, Vol. 6, No. 9, 2018, p. 818-824.

Research output: Contribution to journalArticleResearchpeer-review

Stummer, Maximilian ; Enzinger, Norbert ; Weiß, Christopher. / Thermo-mechanical testing of TiO2 functional coatings using friction stir processing. In: Materials Testing. 2018 ; Vol. 6, No. 9. pp. 818-824.
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