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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 The Casting Process Variables On The Reaction Intensity Of Ni-based Super Alloy And Ceramic Mold
Mohammad Naseri1;1MAVADKARAN-MAPNA, Karaj, Iran;
Type of Paper: Regular
Id Paper: 480
Topic: 9
Abstract:
The surface quality of a vacuum invest cast nickel-base superalloy IN738LC was investigated after casting in ceramic mold. The casting process variables considered were the pouring temperature, section thickness and gating system. To determine the influence of various parameters visual inspection and scanning electron microscopy were performed. The results showed that with decreasing pouring temperature and section thickness the intensity of reaction decreases. Also compared to conventional top filling, bottom filing reduces surface defects. These results demonstrate that reaction between melt of super alloy and ceramic mold depends on heat concentration strongly and surface quality of investment castings will be determined by controlling the casting variables.