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Effect of Porosity on the Thermo-Mechanical Behavior of Friction-Stir-Welded Spark-Plasma-Sintered Aluminum Matrix Composites with Bimodal Micro- and Nano-Sized Reinforcing Al2O3 Particles
Abstrakt
The thermo-mechanical behavior of nanosized Al2O3 particles reinforcing aluminum was analyzed in the present paper. The material was prepared by spark plasma sintering and friction stir welding. The thermal stresses affecting the composite behavior during welding were modeled through COMSOL MultiPhysics, and the results were validated by the analyses of the composites’ mechanical properties. The spark-plasma-sintered materials presented limited porosity, which was taken into account during the modeling phase. Both model and experiments revealed that higher heat input is related to better material mixing during welding and sound mechanical properties. Thermal stresses lead to residual stresses close to 300 MPa in the thermo-mechanically affected zone for processing conditions of 1900 RPM and 37 mm/min. This leads to an increase in hardness up to 72 HV.
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Autorzy (6)
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Behzad Sadeghi
- Centre of Excellence for Advanced Materials Application, Slovak Academy of Sciences, 845 11 Bratislava, Slovakia
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Behzad Sadeghian
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran
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Aboozar Taherizadeh
- Department of Materials Engineering, Isfahan University of Technology, Isfahan 8415683111, Iran
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Pasquale Cavaliere
- Department of Innovation Engineering, University of Salento, Via per Arnesano, 73100 Lecce, Italy
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Arun Gopinathan
- Institute of Materials & Machine Mechanics, Slovak Academy of Sciences, 845 11 Bratislava, Slovakia
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Pełna treść
- Wersja publikacji
- Accepted albo Published Version
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/met12101660
- Licencja
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otwiera się w nowej karcie
Słowa kluczowe
Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
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Metals
nr 12,
ISSN: 2075-4701 - Język:
- angielski
- Rok wydania:
- 2022
- Opis bibliograficzny:
- Sadeghi B., Sadeghian B., Taherizadeh A., Laska A., Cavaliere P., Gopinathan A.: Effect of Porosity on the Thermo-Mechanical Behavior of Friction-Stir-Welded Spark-Plasma-Sintered Aluminum Matrix Composites with Bimodal Micro- and Nano-Sized Reinforcing Al2O3 Particles// Metals -,iss. 12(10) (2022), s.1-17
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.3390/met12101660
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 94 razy
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