The influence of spark plasma sintering temperatures on the microstructure, hardness, and elastic modulus of the nanocrystalline Al-xV alloys produced by high-energy ball milling

• Synthesis of Al-V alloys from high-energy ball milling and spark plasma sintering. with far-from-equilibrium microstructure: V solubility 6 orders magnitude higher than equilibrium value. Elastic modulus is much that any commercial Al alloy. Effect sintering temperature on the microstructure, hardness elastic alloys. Al- x ( = 2 at.%, 5 10 at.%) nanocrystalline structure high solid were produced in powder form by (HEBM). The alloy powders consolidated (SPS) employing a wide range temperatures ranging 200 to 400 °C. microstructure investigated using X-ray diffraction analysis, scanning electron microscope transmission microscope. was influenced SPS content exhibited V―six state grain size < 50 nm at all temperatures. formation 3 intermetallic detected Formation V-lean phase bimodal observed during SPS, which increased increase temperature. modulus, measured nanoindentation, significantly For example, °C 5.21 GPa along 96.21 GPa. evolution has been discussed.