Ductilizing of a brittle as-cast hypereutectic Al–Si alloy by friction stir processing
| Autor: | Nityanand Prabhu, A.G. Rao, V.P. Deshmukh, Bhagwati Prasad Kashyap |
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| Rok vydání: | 2015 |
| Předmět: |
Cast: Metal And Alloy: Microstructure: Particles
Toughness Materials science Friction stir processing Evolution Mechanical Engineering Alloy Metallurgy Mechanical-Properties Cleavage (crystal) engineering.material Condensed Matter Physics Microstructure Brittleness Aluminum-Silicon Alloys Mechanics of Materials Ultimate tensile strength engineering General Materials Science Composite material Nano Size: Structural: Electron Microscopy Ductility |
| Zdroj: | Materials Letters. 159:417-419 |
| ISSN: | 0167-577X |
| DOI: | 10.1016/j.matlet.2015.07.006 |
| Popis: | Multipass friction stir processing of brittle as-cast hypereutectic Al-Si alloy resulted in bimodal distribution of ultrafine silicon particles in nano-size aluminum matrix. As compared to the as-cast material, the stress-strain curves revealed simultaneous increase in strength by four times and in ductility by 14 times after three overlap multipass FSP. The transformation from brittle cleavage fracture to completely ductile fracture is confirmed by the fractographs of tensile samples taken before and after the friction stir processing. (C) 2015 Elsevier B.V. All rights reserved. |
| Databáze: | OpenAIRE |
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