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Title: | Heating rate effects on properties of powder metallurgy Fe-Cr-Al2O3 composites |
Authors: | Saidatulakmar, Shamsuddin Shamsul Baharin, Jamaludin, Prof. Dr. Zuhailawati, Hussain Zainal Arifin, Ahmad saida@perlis.uitm.edu.my sbaharin@unimap.edu.my zuhaila@eng.usm |
Keywords: | Powder metallurgy Heating rate Composites Densification Vickers micro hardness International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) |
Issue Date: | 9-Jun-2010 |
Publisher: | Universiti Malaysia Perlis |
Citation: | p.118-123 |
Series/Report no.: | Proceedings of the International Conference on X-Rays & Related Techniques in Research & Industry (ICXRI) 2010 |
Abstract: | The aim of this study is to determine the optimum heating rate in fabricating Fe-Cr-Al2O3 composites by powder metallurgy methods. The Fe-based composites reinforced with ceramics are widely used due to their high strength, hardness and wear resistance. Among steps in powder metallurgy methods are mixing, compaction and sintering. Sintering is a very important step due to its ability to evolve microstructural features that govern the end properties. Sintering of green compacts made of iron powder mixture must be performed in vacuum or in a reducing atmosphere because water-atomised iron powder particles are oxidized on the surface and in this way some deoxidation reaction can occur during sintering. The heating process up to sintering temperature, plays a major role, the major proportion of densification occurs during the heating process. The composites produced were subjected to the following tests: densification, Vickers micro hardness, microstructure using SEM and X-ray diffraction analysis. From this investigation, to achieve higher densification and hardness the optimal heating rate is 10°C/minute. X-Ray Diffraction study showed that the fabrication of the composites does not lead to any compositional changes of the matrix phase and the reinforcing phase. |
Description: | International Conference on X-Rays and Related Techniques in Research and Industry (ICXRI 2010) jointly organized by Universiti Malaysia Perlis (UniMAP) and X-Ray Application Malaysia Society (XAPP), 9th - 10th June 2010 at Aseania Resort Langkawi, Malaysia. |
URI: | http://dspace.unimap.edu.my/123456789/9037 |
ISBN: | 978-967-5760-02-0 |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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Heating Rate Effects on Properties of Powder Metallurgy Fe-Cr-Al2O3 Composites.pdf | Access is limited to UniMAP community | 1.28 MB | Adobe PDF | View/Open |
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