Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiency
Aluminium foams, produced by powder metallurgy process, have significant potential applications for uses in weight-sensitive structural parts. Problems in the production of metal foams arise from the lack of knowledge in the control of process parameters. The results are frequently uneven and unpre...
Saved in:
| Main Authors: | , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Gruppo Italiano Frattura
2019-09-01
|
| Series: | Fracture and Structural Integrity |
| Subjects: | |
| Online Access: | https://www.fracturae.com/index.php/fis/article/view/2616 |
| Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
| _version_ | 1841564249001820160 |
|---|---|
| author | Ioannis Papantoniou Helena Kyriakopoulou Dimitrios Pantelis Dimitrios Manolakos |
| author_facet | Ioannis Papantoniou Helena Kyriakopoulou Dimitrios Pantelis Dimitrios Manolakos |
| author_sort | Ioannis Papantoniou |
| collection | DOAJ |
| description | Aluminium foams, produced by powder metallurgy process, have significant potential applications for uses in weight-sensitive structural parts. Problems in the production of metal foams arise from the lack of knowledge in the control of process parameters. The results are frequently uneven and unpredictable variations in the structure and properties of the final foamed parts are observed. This paper aims to investigate the effect of different parameters of the powder metallurgy with foaming agents process on the foaming efficiency. The parameters examined included the powder morphology, the compaction pressure and the foaming temperature. During the foaming stage, for each set of parameters the porosity-time (Pf-t) diagrams were created and the foaming efficiency was calculated (η=Pfmax). Results indicated that the highest foaming efficiency was observed at the specimens with the fine aluminium powder, with high (700 MPa) compaction pressure and high foaming temperatures (800 oC). Finally, compression tests were performed on the foamed specimens with the higher foaming efficiency in order to investigate their s-e response. Furthermore, average compressive strength and density were estimated and presented. |
| format | Article |
| id | doaj-art-71bc15c55fe54d2396a14d32b6ebae7f |
| institution | Kabale University |
| issn | 1971-8993 |
| language | English |
| publishDate | 2019-09-01 |
| publisher | Gruppo Italiano Frattura |
| record_format | Article |
| series | Fracture and Structural Integrity |
| spelling | doaj-art-71bc15c55fe54d2396a14d32b6ebae7f2025-01-02T23:01:01ZengGruppo Italiano FratturaFracture and Structural Integrity1971-89932019-09-011350Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiencyIoannis Papantoniou0Helena Kyriakopoulou1Dimitrios Pantelis2Dimitrios Manolakos3School of Mechanical Engineering, Manufacturing Technology Section, National Technical University of AthensSchool of Naval Architecture and Marine Engineering, Shipbuilding Technology Laboratory, National Technical University of AthensSchool of Naval Architecture and Marine Engineering, Shipbuilding Technology Laboratory, National Technical University of AthensSchool of Mechanical Engineering, Manufacturing Technology Section, National Technical University of AthensAluminium foams, produced by powder metallurgy process, have significant potential applications for uses in weight-sensitive structural parts. Problems in the production of metal foams arise from the lack of knowledge in the control of process parameters. The results are frequently uneven and unpredictable variations in the structure and properties of the final foamed parts are observed. This paper aims to investigate the effect of different parameters of the powder metallurgy with foaming agents process on the foaming efficiency. The parameters examined included the powder morphology, the compaction pressure and the foaming temperature. During the foaming stage, for each set of parameters the porosity-time (Pf-t) diagrams were created and the foaming efficiency was calculated (η=Pfmax). Results indicated that the highest foaming efficiency was observed at the specimens with the fine aluminium powder, with high (700 MPa) compaction pressure and high foaming temperatures (800 oC). Finally, compression tests were performed on the foamed specimens with the higher foaming efficiency in order to investigate their s-e response. Furthermore, average compressive strength and density were estimated and presented.https://www.fracturae.com/index.php/fis/article/view/2616Aluminium foamFoaming processFoaming efficiencyMechanical propertiesPorosity |
| spellingShingle | Ioannis Papantoniou Helena Kyriakopoulou Dimitrios Pantelis Dimitrios Manolakos Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiency Fracture and Structural Integrity Aluminium foam Foaming process Foaming efficiency Mechanical properties Porosity |
| title | Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiency |
| title_full | Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiency |
| title_fullStr | Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiency |
| title_full_unstemmed | Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiency |
| title_short | Metal foaming by powder metallurgy process: investigation of different parameters on the foaming efficiency |
| title_sort | metal foaming by powder metallurgy process investigation of different parameters on the foaming efficiency |
| topic | Aluminium foam Foaming process Foaming efficiency Mechanical properties Porosity |
| url | https://www.fracturae.com/index.php/fis/article/view/2616 |
| work_keys_str_mv | AT ioannispapantoniou metalfoamingbypowdermetallurgyprocessinvestigationofdifferentparametersonthefoamingefficiency AT helenakyriakopoulou metalfoamingbypowdermetallurgyprocessinvestigationofdifferentparametersonthefoamingefficiency AT dimitriospantelis metalfoamingbypowdermetallurgyprocessinvestigationofdifferentparametersonthefoamingefficiency AT dimitriosmanolakos metalfoamingbypowdermetallurgyprocessinvestigationofdifferentparametersonthefoamingefficiency |