Influence of Cold, Warm and Plasma Sprayed Layers on High-Cycle Fatigue Properties of Steel Specimens

Kód výsledku v IS VaVaI

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Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Influence of Cold, Warm and Plasma Sprayed Layers on High-Cycle Fatigue Properties of Steel Specimens

Popis výsledku v původním jazyce

In the presented study, the influence of thermally sprayed coatings on fatigue behavior of coated bodies was studied. Commercial-grade titanium powder was deposited onto steel specimens using four thermal spray technologies: plasma spray, low-pressure and portable cold spray, respectively, and warm spray. The specimens were then subjected to strain controlled cyclic bending test in a dedicated in-house built device. The crack propagation was monitored by observing the changes in the resonance frequencyof the samples. A stop-condition corresponding to approximately 40-60% specimen cross-section damage was used to define the fatigue performance of the specimen. The corresponding number of cycles was considered the main performance indicator. It was found that the grit-blasting procedure did not alter the fatigue properties of the steel specimens considerably (5% increase), while deposition of the coatings via all technologies significantly increased the measured fatigue lives. The three

Název v anglickém jazyce

Influence of Cold, Warm and Plasma Sprayed Layers on High-Cycle Fatigue Properties of Steel Specimens

Popis výsledku anglicky

In the presented study, the influence of thermally sprayed coatings on fatigue behavior of coated bodies was studied. Commercial-grade titanium powder was deposited onto steel specimens using four thermal spray technologies: plasma spray, low-pressure and portable cold spray, respectively, and warm spray. The specimens were then subjected to strain controlled cyclic bending test in a dedicated in-house built device. The crack propagation was monitored by observing the changes in the resonance frequencyof the samples. A stop-condition corresponding to approximately 40-60% specimen cross-section damage was used to define the fatigue performance of the specimen. The corresponding number of cycles was considered the main performance indicator. It was found that the grit-blasting procedure did not alter the fatigue properties of the steel specimens considerably (5% increase), while deposition of the coatings via all technologies significantly increased the measured fatigue lives. The three

Druh

D - Stať ve sborníku

CEP obor

JJ - Ostatní materiály

OECD FORD obor

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Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2014

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

International Thermal Spray Conference 2014 Proceedings

ISBN

978-3-87155-574-9

ISSN

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e-ISSN

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Počet stran výsledku

5

Strana od-do

577-581

Název nakladatele

DVS Media GmbH

Místo vydání

Barcelona, Španělsko

Místo konání akce

Barcelona

Datum konání akce

21. 5. 2014

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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