TSU physicists explained how titanium alloy repairs scratches
A team of the TSU Interdisciplinary Laboratory for Computer Modeling and Condensed Medium Analysis has studied how the microstructure of VT6 titanium alloy specimens affects the elastic recovery of scratches that form in them during scratch testing. There is a new mechanism that explains the significant recovery of scratches in VT6 samples with a bimodal microstructure: in the process of scratching, reversible phase transformations develop in them. The results can be useful in the development of methods for increasing the wear resistance of alloys.
The basis of the VT6 alloy is titanium, aluminum, and vanadium. This alloy is used in many industries - from the manufacture of large-sized welded and prefabricated aircraft structures to medicine. At the same time, the use of titanium alloys is limited by the high cost of manufacturing the resulting products by traditional methods. This makes it necessary to look for new ways - for example, actively developing additive technologies. However, the use of such technologies for the manufacture of parts from metallic materials encounters a number of problems associated with the presence of internal defects in the parts, porosity, and microstructure inhomogeneity.