New functional shape memory metal-based nanocomposites
- Reference number
- UKR22-0042
- Project leader
- Demchenko, Lesya
- Start and end dates
- 220501-240630
- Amount granted
- 2 000 000 SEK
- Administrative organization
- Stockholm University
- Research area
- Materials Science and Technology
Summary
The purpose of the project is to develop the new functional nanostructured materials with shape memory effect (SME) and superelasticity (SE), capable to work in extreme conditions, for application in aerospace and automotive technologies, robotics, and biomedicine; as well as creating a new resource-saving technology allowing to control the functional properties of materials by changing size and number of precipitated phase nanoparticles in the nanocomposite structure. The main project objectives are studying the effect of nanocomposite structure on phase transition, called martensitic transformation (MT), and mechanical and functional properties of nanocomposite; investigation of the influence of thermal, mechanical, or magnetic treatment of a high-temperature phase on characteristics of MT of new functional nanocomposites. In the work, the scientific principles of control of superelastic deformation and shape memory effect will be developed, which will provide a high level of mechanical and functional properties of materials according to the industry technology state-of-the-art. A proper choice on the chemical composition of alloys and optimization on the regimes of their thermal, mechanical, or magnetic treatment will allow obtaining new functional materials with predetermined properties. This research will promote controlled regulation of structure from nano-size to micro-size scale and significantly affect the values of elastic deformation and shape memory effect.
Popular science description
Functional materials with shape memory effect (SME), such as shape memory alloys (SMA) are classified as “intelligent” materials that make it possible to create fundamentally new designs and technologies in various branches of mechanical engineering, aerospace, energy-saving, instrumentation and medical technology, etc. The possibility of reversible control of the shape and size of SMAs using mechanical stress, temperature or magnetic fields contributes to their widespread use in various actuators. Such material can be programmed with complex actions and provide multiple performances of functions. By combining the strength and deformation properties of SMA elements, it is possible to design extremely simple and effective actuators for robots, various drives in conveyor production, displacement amplifiers, etc. SMAs are promising materials for the creation of nanosensor and microdrive functional, as well as power devices The development of new physical principles of the creation of SMAs make it possible to solve a variety of materials science and engineering problems in a new way. The project is to develop new functional nanostructured materials with shape memory effect (SME) and superelasticity (SE), capable to work in extreme conditions, for application in aerospace and automotive technologies, robotics, and biomedicine, and to control the properties of materials by changing size and number of precipitated phase nanoparticles in the nanocomposite structure. The effect of nanocomposite structure on phase transition called martensitic transformations (MT), as well as mechanical and functional properties of nanocomposite will be studied. The influence of thermal, mechanical, or magnetic treatment of a high-temperature phase on characteristics of MT of new functional nanocomposites will be investigated. Scientific principles of control of superelastic deformation and shape memory effect will be developed, which will provide a high level of mechanical and functional properties of materials according to the industry technology state-of-the-art. A proper choice on the chemical composition of alloys and optimization on the regimes of their thermal, mechanical, or magnetic treatment will allow obtaining new functional materials with predetermined properties. This research will promote controlled regulation of structure from nano-size to micro-size scale and significantly affect the values of elastic deformation and shape memory effect.