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2011-Sustainable Industrial Processing Summit
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| Editors: | Florian K |
| Publisher: | Flogen Star OUTREACH |
| Publication Year: | 2012 |
| Pages: | 646 pages |
| ISBN: | 978-0-9879917-6-8 |
| ISSN: | 2291-1227 (Metals and Materials Processing in a Clean Environment Series) |
Aluminum A356 Mechanical Poperties Improvement By Ceramic Nanoparticles
Konstantin Borodianskiy1;1ARIEL UNIVERSITY CENTER, Ariel, Israel;
Type of Paper: Regular
Id Paper: 81
Topic: 9
Abstract:
The method of influence on aluminum alloy structure formation by ceramic nanoparticles affecting the crystallization process was presented. Special rod modifier were prepared from the mixture of ceramic nanoparticles and aluminum powder and added to the molten aluminum alloy. These nanoparticles served as the crystallization centers. Improvement of aluminum structure formation and therefore of the mechanical properties of the alloy was demonstrated.The modification rods containing 0.01-0.1 wt.% nanoparticles, were added to A356 aluminum melt. Finer structure of this aluminum alloy was achieved by the alloying process as the result of direct influence of the nanoparticles on the metal crystallization process. Metal grain morphology, non-metallic inclusion and intermetallic phase formation changed as a result of these processes.Aluminum A356 alloy specimens were fabricated by sand casting process. Macro and micro structures, elemental composition and mechanical properties of the modified casts as compared to the non-modified were analyzed. A pronounced improvement of modified aluminum alloys elongation by 30-60% was observed while Ultimate (UTS) and Yield (YS) strengths remain unchanged.