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Effect of TiC Particles on Microstructure and Properties of Al-Fe-V-Si Alloy

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Abstract:

Heat-resistant Al-Fe-V-Si aluminum alloys enhanced by in-situ TiC particles have been prepared by spray forming process with suitable process parameters. Research results show that the microstructure of as-deposited alloy is fine and homogeneous. In-situ TiC particles prevent the unsteady phases from coming into being. On the other hand, the TiC particles increase the volume fraction of heat-resistant phases. So the mechanical properties of the enhanced alloy by in-situ TiC particles are better than that of Al-Fe-V-Si alloy without TiC particles. The hot extrusion temperature is also an important parameter to understand. Under the permission, it is better to extrude the alloy at lower temperature. The tensile strength of the alloy without TiC particles is about 435MPa at room temperature and is about 204MPa at 350°C. However, when the alloy is enhanced by in-situ TiC particles, the strength of alloy is about 482MPa at room temperature and is about 224MPa at 350°C temperature.

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Periodical:

Applied Mechanics and Materials (Volumes 543-547)

Pages:

3725-3728

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.543-547.3725

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Online since:

March 2014

Authors:

Rong Hua Zhang*, Biao Wu

Keywords:

Al-Fe-V-Si Alloy, Microstructure, Tic Particles

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© 2014 Trans Tech Publications Ltd. All Rights Reserved

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