Evaluation of Powder Metallurgy Workpiece Prepared by Equal Channel Angular Rolling
The aim of the article is to examine the workability of sintered powder material of aluminum alloy (Alumix 321) through severe plastic deformations under the conditions of the equal channel angular rolling (ECAR) process. Accordingly, the stress–strain analysis of the ECAR was carried out through a...
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MDPI AG
2023-01-01
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| Online Access: | https://www.mdpi.com/1996-1944/16/2/601 |
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| author | Róbert Kočiško Tibor Kvačkaj Jana Bidulská Róbert Bidulský Patrik Petroušek Imrich Pokorný Miloslav Lupták Marco Actis Grande |
| author_facet | Róbert Kočiško Tibor Kvačkaj Jana Bidulská Róbert Bidulský Patrik Petroušek Imrich Pokorný Miloslav Lupták Marco Actis Grande |
| author_sort | Róbert Kočiško |
| collection | DOAJ |
| description | The aim of the article is to examine the workability of sintered powder material of aluminum alloy (Alumix 321) through severe plastic deformations under the conditions of the equal channel angular rolling (ECAR) process. Accordingly, the stress–strain analysis of the ECAR was carried out through a computer simulation using the finite element method (FEM) by Deform 3D software. Additionally, the formability of the ALUMIX 321 was investigated using the diametrical compression (DC) test, which was measured and analyzed by digital image correlation and finite element simulation. The relationship between failure mode and stress state in the ECAR process and the DC test was quantified using stress triaxiality and Lode angle parameter. It is concluded that the sintered powder material during the ECAR processing failure by a shearing fracture because in the fracture location the stress conditions were close to the pure shear (<i>η</i> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mover accent="true"><mi>θ</mi><mo>¯</mo></mover></semantics></math></inline-formula> ≈ 0). Moreover, the DC test revealed the potential role as the method of calibration of the fracture locus for stress conditions between the pure shear and the axial symmetry compression. |
| first_indexed | 2024-03-09T11:50:48Z |
| format | Article |
| id | doaj.art-c09595e935a348e0903ce052a7c71903 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-09T11:50:48Z |
| publishDate | 2023-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-c09595e935a348e0903ce052a7c719032023-11-30T23:15:33ZengMDPI AGMaterials1996-19442023-01-0116260110.3390/ma16020601Evaluation of Powder Metallurgy Workpiece Prepared by Equal Channel Angular RollingRóbert Kočiško0Tibor Kvačkaj1Jana Bidulská2Róbert Bidulský3Patrik Petroušek4Imrich Pokorný5Miloslav Lupták6Marco Actis Grande7Department of Plastic Deformation and Simulation Processes, Institute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Park Komenského 11, 04001 Kosice, SlovakiaBodva Industry and Innovation Cluster, Budulov 174, 04501 Moldava nad Bodvou, SlovakiaDepartment of Plastic Deformation and Simulation Processes, Institute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Park Komenského 11, 04001 Kosice, SlovakiaBodva Industry and Innovation Cluster, Budulov 174, 04501 Moldava nad Bodvou, SlovakiaDepartment of Plastic Deformation and Simulation Processes, Institute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Park Komenského 11, 04001 Kosice, SlovakiaDepartment of Plastic Deformation and Simulation Processes, Institute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Park Komenského 11, 04001 Kosice, SlovakiaDepartment of Plastic Deformation and Simulation Processes, Institute of Materials and Quality Engineering, Faculty of Materials, Metallurgy and Recycling, Technical University of Kosice, Park Komenského 11, 04001 Kosice, SlovakiaDepartment of Applied Science and Technology (DISAT), Politecnico di Torino, Viale T. Michel 5, 15121 Alessandria, ItalyThe aim of the article is to examine the workability of sintered powder material of aluminum alloy (Alumix 321) through severe plastic deformations under the conditions of the equal channel angular rolling (ECAR) process. Accordingly, the stress–strain analysis of the ECAR was carried out through a computer simulation using the finite element method (FEM) by Deform 3D software. Additionally, the formability of the ALUMIX 321 was investigated using the diametrical compression (DC) test, which was measured and analyzed by digital image correlation and finite element simulation. The relationship between failure mode and stress state in the ECAR process and the DC test was quantified using stress triaxiality and Lode angle parameter. It is concluded that the sintered powder material during the ECAR processing failure by a shearing fracture because in the fracture location the stress conditions were close to the pure shear (<i>η</i> and <inline-formula><math xmlns="http://www.w3.org/1998/Math/MathML" display="inline"><semantics><mover accent="true"><mi>θ</mi><mo>¯</mo></mover></semantics></math></inline-formula> ≈ 0). Moreover, the DC test revealed the potential role as the method of calibration of the fracture locus for stress conditions between the pure shear and the axial symmetry compression.https://www.mdpi.com/1996-1944/16/2/601powder metallurgyequal channel angular rollingformabilitydiametrical compression testfinite element methodstress triaxiality |
| spellingShingle | Róbert Kočiško Tibor Kvačkaj Jana Bidulská Róbert Bidulský Patrik Petroušek Imrich Pokorný Miloslav Lupták Marco Actis Grande Evaluation of Powder Metallurgy Workpiece Prepared by Equal Channel Angular Rolling Materials powder metallurgy equal channel angular rolling formability diametrical compression test finite element method stress triaxiality |
| title | Evaluation of Powder Metallurgy Workpiece Prepared by Equal Channel Angular Rolling |
| title_full | Evaluation of Powder Metallurgy Workpiece Prepared by Equal Channel Angular Rolling |
| title_fullStr | Evaluation of Powder Metallurgy Workpiece Prepared by Equal Channel Angular Rolling |
| title_full_unstemmed | Evaluation of Powder Metallurgy Workpiece Prepared by Equal Channel Angular Rolling |
| title_short | Evaluation of Powder Metallurgy Workpiece Prepared by Equal Channel Angular Rolling |
| title_sort | evaluation of powder metallurgy workpiece prepared by equal channel angular rolling |
| topic | powder metallurgy equal channel angular rolling formability diametrical compression test finite element method stress triaxiality |
| url | https://www.mdpi.com/1996-1944/16/2/601 |
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