Fracture toughness of cold sprayed pure metals

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F19%3A00338774" target="_blank" >RIV/68407700:21340/19:00338774 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Fracture toughness of cold sprayed pure metals

Popis výsledku v původním jazyce

The study of fracture toughness of pure Al, Cu, Ni and Ti deposited by cold spray was performed in order to gain a fundamental understanding of the damage process and quantify their material performance. Rectangular bending specimens of self-standing deposits with fatigue pre-cracks were tested in three-point bending. The KIC values were obtained from J-R curves per ASTM standard El 820. The stress-strain behavior of the tested material was obtained from four-point bending. The cold spray deposits examined in this study exhibited significantly lower fracture toughness than the same wrought materials. The reduction was more pronounced for coatings with limited ductility (Ti and Cu) where fracture toughness only reached less than 10% of wrought material. The higher ductility of Al and Ni resulted in a fracture toughness of 19 and 32% of the wrought reference material. The performed fractographic analysis revealed either ductile or cleavage interparticular fracture as the major failure mode. The factors causing ductile or cleavage behavior of the interparticular areas are discussed.

Název v anglickém jazyce

Fracture toughness of cold sprayed pure metals

Popis výsledku anglicky

The study of fracture toughness of pure Al, Cu, Ni and Ti deposited by cold spray was performed in order to gain a fundamental understanding of the damage process and quantify their material performance. Rectangular bending specimens of self-standing deposits with fatigue pre-cracks were tested in three-point bending. The KIC values were obtained from J-R curves per ASTM standard El 820. The stress-strain behavior of the tested material was obtained from four-point bending. The cold spray deposits examined in this study exhibited significantly lower fracture toughness than the same wrought materials. The reduction was more pronounced for coatings with limited ductility (Ti and Cu) where fracture toughness only reached less than 10% of wrought material. The higher ductility of Al and Ni resulted in a fracture toughness of 19 and 32% of the wrought reference material. The performed fractographic analysis revealed either ductile or cleavage interparticular fracture as the major failure mode. The factors causing ductile or cleavage behavior of the interparticular areas are discussed.

Druh

D - Stať ve sborníku

CEP obor

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OECD FORD obor

20506 - Coating and films

Projekt

<a href="/cs/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Centrum pokročilých aplikovaných přírodních věd</a><br>

Návaznosti

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

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název statě ve sborníku

ITSC2019 - Proceedings of the International Thermal Spray Conference

ISBN

9781510888005

ISSN

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e-ISSN

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Počet stran výsledku

6

Strana od-do

775-780

Název nakladatele

ASM International

Místo vydání

Materials Park, OH

Místo konání akce

Yokohama

Datum konání akce

26. 5. 2019

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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