Formation and microstructure of (Ti, V)C-reinforeed iron-matrix composites using self-propagating high-temperature synthesis
The combustion synthesis of (Ti, V)C-reinforced iron-matrix composites from elemental powders was examined. Examination using scanning electron microscopy indicated that two types of carbide particles were formed having a different size and composition from each other. These were sub-micron size (Ti, V)C particles and pure TiC or TiC-rich particles of a slightly larger particle size. The development of the microstructure and formation of the two types of carbides were explained through an understanding of the reaction mechanism and the thermodynamics of the carbide phases. Increasing the amount of vanadium in the reactants led to a decrease in the carbide and the iron grain size and to a corresponding increase in microhardness.
Item Type | Article |
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Uncontrolled Keywords | carbides; titanium carbide; vanadium carbide; self-propagating high-temperature synthesis; metal matrix; composites |
Subjects |
Physics and Astronomy(all) > Condensed Matter Physics Chemistry(all) > Physical and Theoretical Chemistry Materials Science(all) > Metals and Alloys Materials Science(all) > Materials Chemistry |
Date Deposited | 26 Jul 2024 15:56 |
Last Modified | 26 Jul 2024 15:56 |
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- Department of Engineering and Technology
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