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Evaluation of mechanical properties and microstructure of Al/Al–12%Si multilayer via warm accumulative roll bonding process
| Content Provider | SAGE Publishing |
|---|---|
| Author | Mahallawy, N. El Fathy, A. Hassan, M. Abdelaziem, W. |
| Copyright Year | 2017 |
| Abstract | In this study, accumulative roll bonding (ARB) process was used to produce Al/Al–12%Si multilayered composites at 300℃. Microstructure and mechanical properties of the composites were studied during various ARB cycles by field emission scanning electron microscope (FE-SEM), tensile test, and the Vickers microhardness test. The FE-SEM results revealed that, as the ARB cycle increases the thickness of individual Al and Al–12%Si sheets decreased. After the 5th cycle, Al–12%Si layers were necked, fractured and dispersed in the aluminum matrix. A new intermetallic phase Al3.21Si0.47 was formed at the Al/Al–12%Si interface, indicating that the ARB process could result in a metallurgical bonding. It was observed that the tensile strength of composites improved by increasing the ARB passes, i.e. the tensile strength of the Al/Al–12%Si composite was measured to be about 5.52 and 2.17 times that of the primary 1050-Al and Al–12%Si sheets, respectively. Observations reveal that the failure mode in ARB-processed composites is of the shear ductile rupture type. The microhardness of the Al and Al–12%Si alloys were raised to 110 HV and 121 HV after five cycles. |
| Related Links | https://journals.sagepub.com/doi/pdf/10.1177/0021998317692141?download=true |
| ISSN | 00219983 |
| Journal | Journal of Composite Materials (JCM) |
| e-ISSN | 1530793X |
| DOI | 10.1177/0021998317692141 |
| Language | English |
| Publisher | Sage Publications UK |
| Publisher Date | 2017-02-06 |
| Publisher Place | London |
| Access Restriction | Open |
| Rights Holder | © The Author(s) 2017 |
| Subject Keyword | warm accumulative roll bonding Al/Al–12%Si multilayered composites microstructure mechanical properties |
| Content Type | Text |
| Resource Type | Article |
| Subject | Ceramics and Composites Materials Chemistry Mechanics of Materials Mechanical Engineering |
