New insights into the formation mechanism of intertwining interfaces in cold spray

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61389021%3A_____%2F18%3A00543752" target="_blank" >RIV/61389021:_____/18:00543752 - isvavai.cz</a>
Result on the web
<a href="https://www.asminternational.org/c/portal/pdf/download?articleId=37620877&groupId=10192" target="_blank" >https://www.asminternational.org/c/portal/pdf/download?articleId=37620877&groupId=10192</a>
DOI - Digital Object Identifier
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Result language
angličtina
Original language name
New insights into the formation mechanism of intertwining interfaces in cold spray
Original language description
Experimental investigation supported by numerical modeling was conducted to explore the formation mechanism of intertwining interface in cold spray. The result revealed that low particle impact velocity and the consequent low deposition efficiency were the essential reason for inducing intertwining interface. In addition, intertwining interface was found to generate at very beginning of coating deposition, further particle deposition posed negligible effect on the formation of intertwining interface. Based on the experimental and numerical analysis, for the first time, the formation mechanism of intertwining interface was concluded and proposed in this paper. Low deposition efficiency led to slow coating growing rate. Therefore, at the beginning of the coating deposition, a large number of rebound particles repetitively hit the very thin single-layer or double-layer coating, forming a shot-peening effect. Such effect resulted in periodic shear stress and plastic strain in the first-layer coating. Particles of the first-layer coating were elongated and fractured and mixed with the substrate material to form the intertwining structure.
Czech name
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Czech description
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Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year
2018
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Article name in the collection
Proceedings of the International Thermal Spray Conference
ISBN
9781510880405
ISSN
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e-ISSN
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Number of pages
8
Pages from-to
219-226
Publisher name
ASM International
Place of publication
Materials Park
Event location
Orlando
Event date
May 7, 2018
Type of event by nationality
WRD - Celosvětová akce
UT code for WoS article
000550735700033

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