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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) |
Effect Of SiC On Precipitation Hardening BehaviorOf A356/SiCp Composites
m.hussein golmakani1; mohsen haddad sabzevar2; jalil vahdati khaki2; javad asadi1;1ISLAMIC AZAD UNIVERSITY, mashhad, Iran; 2FERDOWSI UNIVERSITY, mashhad, Iran;
Type of Paper: Regular
Id Paper: 495
Topic: 9
Abstract:
Nowadays, MMCs are widely used in different industries. Al alloys are the appropriate base metals for such applications, because of their low density, environmental resistant and good mechanical properties. In this research, fabrication and properties of A356/SiCp reinforced composite have been studied. A356 is an age hardenable casting alloy. Addition of SiC particles to this alloy improves its mechanical properties. Hence, in this work, the effect of SiC addition on precipitation hardening process was studied. It was found that the addition of SiC particles increased the maximum hardness, as well as the kinetics of precipitation process. Performing the age hardening in 185°C changed the maximum hardness from 88HB in SiC free sample to 95HB in 3% SiC contained sample. At the same time, the time interval during which the maximum hardness was obtained decreased from 9 hours to 5 hours in the presence of 3% volume fraction of SiC . By increasing the particle size of SiC from 1000 to 200 mesh, the maximum hardness value increased to 115HB. While, the time interval to achieve it didn’t change.