MISIS Enhances Titanium Alloys Through Aging and Deformation

Researchers from MISIS University and the A.A. Baikov Institute of Metallurgy and Materials Science in Russia have made a breakthrough in improving the properties of metal alloys based on titanium nickelide (TiNi). By employing controlled aging and plastic deformation techniques, the team has significantly enhanced the functional characteristics of TiNi alloys, crucial in applications requiring materials to recover shape after deformation and operate within specific temperature ranges.

The study revealed that pre-deformation aging of TiNi samples for five hours, followed by post-deformation aging at 430°C for an hour, resulted in an optimal mix of mechanical and functional properties. This treatment achieved a strength of 1,562 megapascals, a yield strength of 1,410 megapascals, and a reversible deformation of 11.6 percent.

Titanium nickelide, a shape memory alloy, benefits greatly from aging processes that influence its structure formation. The method developed by Professor Sergei Prokoshkin and his team promises to widen the applications of TiNi-based shape memory alloys in sectors like aerospace, biomedicine, and instrumentation, leveraging its superior property set for advanced technological solutions.