Nanostructures in Welded Joints and Their Interconnection with Operation Properties

Markashova, L.I.; Berdnikova, О.М.; Alekseienko, T.; Bernatskyi, Artemii; Sydorets, Volodymyr

doi:10.1007/978-981-13-6133-3_12

Cited by 15 publications

(5 citation statements)

References 19 publications

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“…1, b) and αʹ-phase are detected in the weld metal. Metastable β-phase has a body-centered cubic (BCC) lattice and metastable αʹphase close-packed hexagonal lattice with rhombic distortion, while the β-phase is detected mainly in the weld metal, αʹ-phase is present in both weld metal and HAZ [60].…”

Section: Research Methods and Materialsmentioning

confidence: 99%

Structure and Properties of High-Strength Titanium Alloy Ti-6.5Al-3Mo-2.5V-4Nb-1Cr-1Fe-2.5Zr Welded Joints

Akhonin

Belous

Selin

et al. 2021

SSP

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As intensive work is underway in leading material science centers in the USA, EU, Russia, and China, both to modernize existing titanium alloys and to create new ones, the E.O. Paton Electric Welding Institute of the National Academy of Sciences of Ukraine developed titanium alloys T110 (Ti-5.5Al-1.2Mo-1.2V-4Nb-2Fe-0.5Zr system) and T120 (Ti-6.5Al-3Mo-2.5V-4Nb-1Cr-1Fe-2.5Zr system), which according to their characteristics, belong to the group of modern two-phase high-alloyed alloys characterized by high strength and good ductility. With more and more attention is being paid to the expansion in the usage of welded structures and assemblies of high strength titanium alloys with UTS ≥ 1100 MPa, there’s urgent need in studying best ways to obtain welded joints from such alloys. The weldability of two-phase high-alloyed titanium alloys, the use of which can give big reduction in structural weight, is significantly worse than low-alloyed alloys, therefore for a new alloy it is necessary to ensure the possibility of obtaining welded joints with a strength of at least 90% compared to the strength of base material. The aim of this work is to study the influence of the welding thermal cycle and reducing of weld metal alloying degree on the structure and mechanical properties of welded joints of high-strength titanium alloy Ti-6.5Al-3Mo-2.5V-4Nb-1Cr-1Fe-2.5Zr with tensile strength more than 1200 MPa, as well as assessment of it welded joints properties in comparison with other high-strength titanium alloys.

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Section: Research Methods and Materialsmentioning

confidence: 99%

Structure and Properties of High-Strength Titanium Alloy Ti-6.5Al-3Mo-2.5V-4Nb-1Cr-1Fe-2.5Zr Welded Joints

Akhonin

Belous

Selin

et al. 2021

SSP

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“…Глобальною тенденцією технічного прогресу в економіці найбільш розвинених країн є широке застосування і вдосконалення нових наукоємних перспективних технологій, до яких, зокрема, належать і лазерні технології обробки матеріалів, наприклад лазерне зварювання [1][2][3]. Використання технологій лазерного зварювання має вирішальне значення для підвищення продуктивності праці та конкурентоспроможності продукції в багатьох галузях промисловості [4][5][6]. Відмінними рисами застосування лазерів у виробництві є висока якість виробів, висока продуктивність процесів, економія людських і матеріальних ресурсів, екологічна безпека [7][8][9].…”

Section: обробка матеріалів у машинобудуванніunclassified

Creating Unified Laser Technology Equipment for Standardized Welded Joints

Bernatskyi¹,

Шелягин²,

Sydorets³

et al. 2020

Scientific notes of Taurida National V.I. Vernadsky University.

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“…As a result of the high-speed thermo-deformation cycle of laser and hybrid laser-arc welding on metal welds and the heat-affected zone of low-carbon steels, a uniform dispersed structure of finegrained lower bainite and martensite is formed with uniform distribution of carbide-type nanophases [4,5]. Powerful and short-term effect of external loading during explosion welding of dissimilar metals (aluminum with steel, copper, etc.)…”

Section: Nanoparticles and Single Crystals As The Basis Of Modern Adv...mentioning

confidence: 99%

Modern Techniques for Automated Acquiring and Processing Data of Diffraction Electron Microscopy for Nano-Materials and Single-Crystals

Sydorets

Berdnikova

Polovetskyi

et al. 2020

MSF

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Progress in modern science and technology is impossible without the use of new materials, which include nanoparticles and single crystals. Existing approaches in the field of computer vision are difficult to apply to the processing of diffraction patterns, which contain information about the parameters of the fine structure of nanostructured and single-crystal materials. The aim of the work was to develop modern computer-aided techniques that, interacting with the software of the electron microscope, automatically receive and process the information contained in electron diffraction patterns. Replacing the diffraction pattern obtained by a transmission electron microscope with a three-dimensional relief makes it possible to reduce the problem to the solution of the optimization problem. This approach allows not only automating the process of scientific research, but also significantly reduces the time for obtaining the result and increases its accuracy. The application of the proposed approach is demonstrated in measuring the misorientation angles of large single-crystal tungsten ingots, which are obtained by the plasma-induction growing technology.

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Nanostructures in Welded Joints and Their Interconnection with Operation Properties

Cited by 15 publications

References 19 publications

Structure and Properties of High-Strength Titanium Alloy Ti-6.5Al-3Mo-2.5V-4Nb-1Cr-1Fe-2.5Zr Welded Joints

Structure and Properties of High-Strength Titanium Alloy Ti-6.5Al-3Mo-2.5V-4Nb-1Cr-1Fe-2.5Zr Welded Joints

Creating Unified Laser Technology Equipment for Standardized Welded Joints

Modern Techniques for Automated Acquiring and Processing Data of Diffraction Electron Microscopy for Nano-Materials and Single-Crystals

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