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Your search keyword '"P. V. Bakhmatov"' showing total 9 results
Start Over Author "P. V. Bakhmatov" Topic metals and alloys
9 results on '"P. V. Bakhmatov"'

5. Features of the hydrogen distribution in a weld seam made by electron beam welding of titanium alloys

Author

V. I. Muravev, M. S. Gavrilov, V. V. Grigorev, and P. V. Bakhmatov

Subjects
Materials science, Distribution (number theory), Hydrogen, Mechanical Engineering, Metallurgy, Metals and Alloys, Titanium alloy, chemistry.chemical_element, Welding, law.invention, Weld seam, chemistry, Mechanics of Materials, law, Electron beam welding
Abstract

This paper presents the research results of the hydrogen distribution in welded joints made by electron beam welding of titanium alloys VT20 and VT23. The distribution of hydrogen in the cross-sect...

Published
2021
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6. Effect of activation of weld edges on the formation of pores in fusion welding of titanium components

Author

K. A. Melkostupov, O.P. Logvinov, P. V. Bakhmatov, and V. I. Murav'ev

Subjects
Materials science, Mechanical Engineering, Metallurgy, Metals and Alloys, Titanium alloy, chemistry.chemical_element, Welding, law.invention, Fusion welding, Adsorption, chemistry, Mechanics of Materials, law, Surface layer, Porosity, Intensity (heat transfer), Titanium
Abstract

The experimental results show that the nature of formation of the structure of the surface layer in the weld edges influences the depth of the porous surface layer, the intensity and extent of adsorption capacity of contaminants and, correspondingly, the thermally activated process of solid-phase interaction ahead of the front of the solidified pool and the level of defectiveness (porosity) in the welded joint.

Published
2013
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7. Calculation of residual stresses on the basis of thermal fields in butt welding of thin sheets

Author

A. A. Debelyak, V. I. Murav’ev, and P. V. Bakhmatov

Subjects
Heat-affected zone, Materials science, Mechanical Engineering, Butt welding, Metallurgy, Metals and Alloys, Laser beam welding, Electrogas welding, Welding, Electric resistance welding, Gas metal arc welding, law.invention, Mechanics of Materials, law, Friction welding, Composite material
Abstract

The results of analysis of a number of graphical-calculation methods of determination of welding (residual) strains, which form unavoidably under the thermal effect of highly concentrated heat sources, are presented.

Published
2013
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8. Effect of the conditions of the welding thermal cycle on the structure and properties of weld metal in titanium alloys

Author

O. N. Kleshnina, V. I. Murav'ev, A. A. Kuznetsov, and P. V. Bakhmatov

Subjects
Heat-affected zone, Materials science, Moisture, Mechanical Engineering, Metallurgy, Metals and Alloys, Thermal cycle, Titanium alloy, Welding, law.invention, Mechanics of Materials, law, Weld pool, Composite material, Weld metal
Abstract

The results of investigations of the effect of the welding thermal cycle on the structure and properties of welded joints VT20 titanium alloy are presented. It is shown that the removal of capillary-condensed moisture from the surface of the welded components and degassing of the weld pool prevent the formation of pores and result in a large reduction of the mechanical properties of welded joints.

Published
2012
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9. Investigation of the friction stir welding conditions of V95T2 high-strength aluminium alloy

Author

P. V. Bakhmatov, K. A. Melkostupov, and V. I. Murav'ev

Subjects
Heat-affected zone, Materials science, Filler metal, Mechanical Engineering, Metallurgy, Metals and Alloys, Welding, Electric resistance welding, law.invention, Mechanics of Materials, law, visual_art, Aluminium alloy, visual_art.visual_art_medium, Friction stir welding, Plasticine, Friction welding, Composite material
Abstract

The feasibility of friction stir welding of structures made of high-strength aluminium alloys with the V95 alloy used as an example is confirmed. The method of modelling the process of formation of the welded joint using plasticine simulation is described. The maximum temperature and its distribution both in the specimen and in the working tool in friction stir welding of V95 aluminium alloy are determined.

Published
2011
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