The NANOstructured TiNi shape-memory alloys: New properties and
applications

V.G. Pushin, Institute of Metal Physics, Ural Division RAS, S.Kovalevskoi
Str. 18, 620219, Ekaterinburg, RUSSIA and R.Z. Valiev, Institute of Physics
of Advanced Materials, Ufa State Aviation Technical University, 450000, Ufa,
RUSSIA

Submitted to Symposium C

Symposium Interfacial effects and novel properties in nanomaterials.

Recent investigations testify to the fact that due to the shape-memory
effect and good mechanical properties the TiNi alloys are very
attractive for some medical and engineering applications. We
demonstrate in the present paper that these properties can be enhanced
essentially by forming nanostructures in these alloys through severe
plastic deformation (SPD), i.e., intence shearing under high imposed
pressure. Using computer modeling and experimental investigations
there have been defined the SPD regimes leading to formation of
homogeneous nanostructures with a grain size of less that 100 nm and
as a result considerable enhancement of physical and mechanical
properties of the alloys. New potentialities of nanostructured TiNi
alloys for structural and functional applications are considered.

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1. Nano-Titanium for medical applications
2. Nanostructure and properties of the large size Ti_49,4Ni_50,6 alloy samples, subjected to High Pressure Torsion Deformation with subsequent annealings
3. Development and study of nanostructured titanium alloys with enhanced fatigue properties
4. Dissolution-precipitation of the secondary phase particles in copper-rich Cu-Cr alloys during high-pressure torsion
5. Martensitic transition in strong magnetic field and external stress in quaternary ferromagnetic shape memory alloy Ni-Mn-Fe-Ga
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7. The New SPD Processing Routes to Fabricate Bulk Nanostructured Materials
8. Phase transformations in pearlitic steels induced by severe plastic deformation.
9. Deformation-induced nanocrystallization in Al-rich metallic glasses
10. X-RAY ANALYSIS OF HIGH PRESSURE TORSION INDUCED NANOSTRUCTURES IN TI AND NI
11. STRENGTH OF COMMERCIAL ALUMINUM ALLOYS AFTER EQUAL CHANNEL ANGULAR PRESSING (ECAP) AND POST-ECAP PROCESSING
12. Сombined SPD techniques for fabrication of nanostructured Ti rods for medical applications
13. Excellent mechanical properties of UFG metals and alloys, subjected to combination of severe plastic deformation methods.
14. Excellent Mechanical Properties of Nickel Processed by High Pressure Techniques
15. Recent progress in developing nanostructured SPD materials with unique properties
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18. Nanostructured Materials from Severe Plastic Deformation under High Pressure
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