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 Al<sub>2</sub>O<sub>3</sub> Particles
The thermo-mechanical behavior of nanosized Al<sub>2</sub>O<sub>3</sub> 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 durin...
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| Format: | Article |
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MDPI AG
2022-10-01
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| Series: | Metals |
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| Online Access: | https://www.mdpi.com/2075-4701/12/10/1660 |
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| author | Behzad Sadeghi Behzad Sadeghian Aboozar Taherizadeh Aleksandra Laska Pasquale Cavaliere Arun Gopinathan |
| author_facet | Behzad Sadeghi Behzad Sadeghian Aboozar Taherizadeh Aleksandra Laska Pasquale Cavaliere Arun Gopinathan |
| author_sort | Behzad Sadeghi |
| collection | DOAJ |
| description | The thermo-mechanical behavior of nanosized Al<sub>2</sub>O<sub>3</sub> 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. |
| first_indexed | 2024-03-09T19:48:04Z |
| format | Article |
| id | doaj.art-2a17562d4d624a178f032e1cbe1fcb14 |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-03-09T19:48:04Z |
| publishDate | 2022-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Metals |
| spelling | doaj.art-2a17562d4d624a178f032e1cbe1fcb142023-11-24T01:18:39ZengMDPI AGMetals2075-47012022-10-011210166010.3390/met12101660Effect of Porosity on the Thermo-Mechanical Behavior of Friction-Stir-Welded Spark-Plasma-Sintered Aluminum Matrix Composites with Bimodal Micro- and Nano-Sized Reinforcing Al<sub>2</sub>O<sub>3</sub> ParticlesBehzad Sadeghi0Behzad Sadeghian1Aboozar Taherizadeh2Aleksandra Laska3Pasquale Cavaliere4Arun Gopinathan5Centre of Excellence for Advanced Materials Application, Slovak Academy of Sciences, 845 11 Bratislava, SlovakiaDepartment of Materials Engineering, Isfahan University of Technology, Isfahan 8415683111, IranDepartment of Materials Engineering, Isfahan University of Technology, Isfahan 8415683111, IranFaculty of Mechanical Engineering and Ship Technology, Gdansk University of Technology, 80-233 Gdansk, PolandDepartment of Innovation Engineering, University of Salento, Via per Arnesano, 73100 Lecce, ItalyInstitute of Materials & Machine Mechanics, Slovak Academy of Sciences, 845 11 Bratislava, SlovakiaThe thermo-mechanical behavior of nanosized Al<sub>2</sub>O<sub>3</sub> 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.https://www.mdpi.com/2075-4701/12/10/1660spark plasma sinteringnanocompositesfriction stir weldingCOMSOLmechanical properties |
| spellingShingle | Behzad Sadeghi Behzad Sadeghian Aboozar Taherizadeh Aleksandra Laska Pasquale Cavaliere Arun Gopinathan 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 Al<sub>2</sub>O<sub>3</sub> Particles Metals spark plasma sintering nanocomposites friction stir welding COMSOL mechanical properties |
| title | 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 Al<sub>2</sub>O<sub>3</sub> Particles |
| title_full | 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 Al<sub>2</sub>O<sub>3</sub> Particles |
| title_fullStr | 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 Al<sub>2</sub>O<sub>3</sub> Particles |
| title_full_unstemmed | 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 Al<sub>2</sub>O<sub>3</sub> Particles |
| title_short | 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 Al<sub>2</sub>O<sub>3</sub> Particles |
| title_sort | 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 al sub 2 sub o sub 3 sub particles |
| topic | spark plasma sintering nanocomposites friction stir welding COMSOL mechanical properties |
| url | https://www.mdpi.com/2075-4701/12/10/1660 |
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