Journal ArticleDOI
Research on Preparation of Al-Fe-V-Si Alloy Enhanced by In-Situ TiC Particles
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TLDR
In this paper, the microstructure of an as-deposited alloy is fine and homogeneous and in-situ TiC particles prevent the unsteady phases from coming into being.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.read more
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Journal ArticleDOI
Dispersion strengthened AlFeVSi alloys
Journal ArticleDOI
Coarsening of precipitates and dispersoids in aluminium alloy matrices: a consolidation of the available experimental data
TL;DR: In this article, a review of experimental data on the coarsening of precipitates and dispersoids in aluminium-based matrices is presented, where a considerable body of data for δ′-A3Li in Li-containing alloys is well represented by K=(k¯¯¯¯0/T) exp (−Q/RT) with K¯¯¯¯0=(1.3¯¯¯¯ −0.5cffff +3.0cffff −1.5====== +3) where rcffff is the initial particle radius and r is its value after time t at temperature T, and
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An investigation on the microstructural stability of rapidly solidified AlFeVSi alloy ribbon
TL;DR: The thermal stability of dispersive particles in melt-spun ribbons was studied by differential thermal analysis, X-ray diffraction, energy-dispersive Xray analysis and transmission electron microscopy.