Fine-grained (grain size between Xlym~Iym) and nanocrystalline (grain size less than 100nm) materials have small size effects, surface interface effects, and macroscopic quantum tunneling effects due to their unique structures, making them It exhibits a series of mechanical, optical, electrical, acoustic and magnetic properties that are fundamentally different from ordinary polycrystalline and amorphous solids. For example, high-energy nanomaterials, nano-stealth materials, and nano-magnetic materials are used in electronic information, bioengineering, It has important uses in aerospace, defense technology and daily life.
At the same time, titanium alloy has a series of advantages such as low density, high strength and corrosion resistance. Therefore, titanium alloy materials with ultrafine grains/nanocrystals have broader application prospects. Because large-scale ultrafine crystals/nanomaterials can better meet the use requirements of industrial structural parts, they become an important part of nanomaterial research and development, and nanomaterial preparation technology is the key to the development and application of nanomaterials.
Further preferably, by adopting the titanium alloy components designed in the present invention, ultrafine-grained titanium alloys or nanocrystalline titanium can be obtained without resorting to complex and difficult-to-control plastic deformation processes such as equal-diameter angular extrusion, high-pressure torsion, and stack rolling. alloys; in particular, large-sized ultrafine-grained titanium alloys or nanocrystalline titanium alloys can be obtained through a low-cost preparation process, thereby breaking through the limitations of the prior art for preparing titanium alloy nanomaterials, reducing the difficulty of process control and manufacturing costs, The production efficiency is improved, and the invention has broad application prospects.
