Fracture toughness of cold sprayed pure metals

Result code in 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>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
Fracture toughness of cold sprayed pure metals
Original language description
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.
Czech name
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Czech description
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Project
<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2019
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
ITSC2019 - Proceedings of the International Thermal Spray Conference
ISBN
9781510888005
ISSN
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e-ISSN
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Number of pages
6
Pages from-to
775-780
Publisher name
ASM International
Place of publication
Materials Park, OH
Event location
Yokohama
Event date
May 26, 2019
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
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