Fabrication of Ultrafine Low Carbon Metallic Multilayer by Accumulative Roll Bonding
| Autor: | Carmela GURĂU, Gheorghe GURĂU, Petrică ALEXANDRU |
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| Jazyk: | angličtina |
| Rok vydání: | 2014 |
| Předmět: | |
| Zdroj: | The Annals of “Dunarea de Jos” University of Galati. Fascicle IX, Metallurgy and Materials Science, Vol 37, Iss 4 (2014) |
| Druh dokumentu: | article |
| ISSN: | 2668-4748 2668-4756 |
| Popis: | The effect of grain refinements by Accumulative Roll Bonding (ARB) was investigated on low carbon steel. Optical microscopy (OM) and microhardness tests were used to check the phase changes and hardness before and after ARB. A combined technique between cold rolling and ARB was used to obtain the changes of grain size under 1 µm. Metallographic analysis reveals the change of low carbon microcrystalline one compared to the ultrafine one with increased hardness resulted from straining by ARB. The severe plastic deformation (SPD) processing of bulk metals is not straightforward due to several differences in the final microstructure at several material length scales. The plastic deformation behavior of the final material depends on many microstructural aspects, one of them being grain refinement up to amorphization caused by ARB. |
| Databáze: | Directory of Open Access Journals |
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