A5072717814- Titanium Alloys Microstructure and Properties
- Microstructure and mechanical properties
- Metal and Thin Film Mechanics
- Intermetallics and Advanced Alloy Properties
- Advanced materials and composites
- Magnesium Alloys: Properties and Applications
- Bone Tissue Engineering Materials
- Additive Manufacturing Materials and Processes
- MXene and MAX Phase Materials
- Additive Manufacturing and 3D Printing Technologies
- Orthopaedic implants and arthroplasty
- Hydrogen embrittlement and corrosion behaviors in metals
- Welding Techniques and Residual Stresses
- Metallurgy and Material Forming
- Advanced Welding Techniques Analysis
- Muon and positron interactions and applications
Ufa Institute of Chemistry
2022-2023
Ufa State Aviation Technical University
2012-2021
Herein, an overview of the recent research on relationship between ultrafine‐grained (UFG) structure titanium and its alloys physical mechanical properties materials, as well formation advanced functional service properties, including fatigue strength, creep behavior, impact fracture toughness is presented. It shown that due to record achieved in UFG alloys, these materials have innovative potential for successful application medicine engineering industries. Some works are carried out...
The ASTM F1295/Ti-6Al-7Nb alloy present mechanical properties and biocompatibility very attractive for application in medical dental implants. In this context, processing of these Ti-based alloys by severe plastic deformation (SPD) has been extensively reported recently. However, the equal channel angular pressed (ECAP) F1295 are still a matter research. study, Ti-6Al-7Nb samples were processed ECAP following thermomechanical which effects on microstructure investigated X-ray diffraction...
Ti15Mo metastable beta Ti alloy was solution treated and subsequently deformed by high-pressure torsion (HPT). HPT-deformed benchmark non-deformed solution-treated materials were annealed at 400 °C 500 in order to investigate the effect of UFG microstructure on α-phase precipitation. Phase evolution examined using laboratory X-ray diffraction (XRD) high-energy synchrotron (HEXRD), which provided more accurate measurements. Microstructure observed scanning electron microscopy (SEM)...
The influence of the ultrafine-grained structure formed by equal-channel angular pressing via “Conform” scheme on fatigue behavior metastable β-alloy Ti-15Mo has been studied. It is shown that alloy with a two-phase achieved best mechanical properties and enhanced endurance limit (up to 710 MPa basis 107 cycles) due total contribution grain boundary, dislocation, phase strengthening mechanisms. A fractographic analysis fracture surface samples after tests showed features crack propagation...
Processing of metastable titanium alloys by severe plastic deformation provides an opportunity to achieve exceptional grain refinement, enhance the strength and affect phase transformations occurring during thermal treatment. The main aim this study is investigate microstructure ultra-fine grained (UFG) material effect microstructural changes on in β-Ti alloy Ti-15Mo.
The influence of ultra fine grained (UFG) and coarse (CG) microstructure the titanium alloy Ti-6Al-4V on strength a diffusion bonded (DB) joint was studied using laboratory DB fixture new shear test rig. process carried out at 725 °C 825 during 2 4 h in vacuum furnace. Coarsening grain structure resulting from different cycles quantified. chain pores were observed for both conditions h. increase bonding time up to leads subsequent elimination pores. UFG samples showed higher level than CG...
Ultrafine-grained (UFG) Ti alloys have potential applications in osteosynthesis and orthopedics due to high bio-compatibility increased weight-to- strength ratio. In current study, Ti6Al7Nb ELI alloy is processed through equal channel angular pressing-conform (ECAP-Conform) subsequent thermomechanical processing generate a UFG microstructure. The fatigue properties of are compared coarse grained (CG) alloys. Our study demonstrates that the with an average grain size ~180 nm showed 35%...
The problem of the optimization properties for biocompatible coatings as functional materials requires in-depth understanding coating formation processes; this allows precise manufacturing new generation implantable devices. Plasma electrolytic oxidation (PEO) opens possibility design biomimetic surfaces better biocompatibility titanium materials. pulsed bipolar PEO process cp-Ti under voltage control was investigated using joint analysis surface characterization and by in situ methods...
Ti15Mo alloy was subjected to two techniques of intensive plastic deformation, namely high pressure torsion and rotary swaging at room temperature. The imposed strain resulted in the formation an ultrafine-grained structure both deformed conditions. Detailed inspection microstructure revealed presence grains with a size around 100 nm after also contained elongated length up 1 µm. Isothermal ageing 400 °C 500 16 h applied conditions investigate kinetics precipitation α phase recovery lattice...
Ti15Mo alloy is a binary metastable beta titanium with excellent mechanical properties and biocompatibility.Therefore, it can potentially replace the most commonly used Ti6Al4V in biomedical applications.Further processing of by methods severe plastic deformation provides an opportunity to achieve exceptional grain refinement enhance properties.Another way how increase strength thermomechanical which leads formation α-phase.α-phase known precipitate heterogeneously, particular at...
The main aim of this study is to analyze the effect severe plastic deformation (SPD) on mechanical properties and defect structure metastable beta Ti alloys. Experiments were performed two different β-Ti alloys: Ti-15Mo Ti-6.8Mo-4.5Fe-1.5Al which subjected by high pressure torsion (HPT). increase hardness with increasing equivalent strain was determined microhardness mapping. Dislocation density studied advanced techniques positron annihilation spectroscopy (PAS). Microhardness dislocation...
At present, researchers pay great attention to the development of metastable β-titanium alloys. A task current importance is enhancement their strength and fatigue properties. An efficient method for increasing such alloys could be severe plastic deformation. The object this study was a medical alloy Ti-15Mo (ASTM F2066). in (α + β) state first time deformed by combined processing, including equal channel angular pressing-conform drawing. Such processing enabled production long-length rods...
Metastable beta titanium alloys are perspective materials for use in biomedicine due to their excellent mechanical and physical properties, which can be improved by severe plastic deformation reducing grain size inserting a high degree of deformation.Ti-15Mo alloy was subjected 1-4 passes equal channel angular pressing die with channels intersecting at an angle 120 • the temperature 250 C. The microstructure observed means electron backscatter diffraction showed deformed highly twinned...
A metastable β-titanium alloy, Ti15Mo was subjected to equal channel angular pressing (ECAP). The resulting microstructure of the material is inhomogeneous consisting micrometer size β-grains with deformed bands containing ultra-fine β-grains. ECAP-deformed sample thermal treatment in order elucidate difference morphology α-phase precipitation and non-deformed materials. formation accelerated areas higher concentration lattice defects. detail investigation by transmission electron microscopy...