Electroacoustic coating application to improve the performance of composites based on heat-resistant nickel alloys

Application of the eddy current method for flaw detection of conductive tracks of printed circuit boards

“…The developed hardware is designed to be as portable as possible while remaining within its functional limitations. The sensors in the positioning system are ECT [12][13][14][15]. The electromagnetic field of the ECT is produced by means of a system generating signals for the exciting winding.…”

The mathematical modeling of the process of hardening treatment of titanium blades of steam turbines

“…It was found that the highest specific gravity and the lowest porosity of the coating at a current strength of 8A, a discharge capacity of 0.6μF are achieved. Non-porous nickelbased coatings reinforced with borides, having high hardness, wear resistance and corrosion resistance are formed at these parameters [9][10][11][12][13][14][15][16][17][18][19].…”

“…Promising materials for large-sized blades in such turbines can be pseudo-α-titanium alloys, in which the content of the unstable β-phase is much lower than in two-phase (α+β)-titanium alloys, which ensures their higher heat resistance. It is known that electrospark coatings applied on pseudo-α-titanium alloys have high wear resistance at temperatures up to 500° C and high corrosion resistance and can be used to increase the durability of turbine blades operating in a stream of superheated steam at high temperatures under conditions of drop impact erosional impact [1][2][3][4][5][6][7][8][9][10][11][12][13][14][15][16][17][18][19].…”

“…To establish the dependences of the influence of factors and conditions of the technological process of electrospark treatment on the quality of coatings on titanium blades of steam turbines, it is advisable to use methods of mathematical modeling [9][10][11][12][13][14].…”

STRUCTURAL AND PHASE CHANGES OF THE SURFACE LAYERS OF HEATRESISTANT MULTICOMPONENT COATING OF ION-PLASMA COATING Ni-Cr-Al-Y AFTER MODIFICATION BY HIGH-CURRENT ELECTRON BEAMS MICROSECOND DURATION

“…With ever-increasing complication and toughening of working conditions of modern technology, the problem of creating materials and their processing types, which along with high strength, increase the level of performance properties has become extremely urgent (Tishkov and Firsanov, 2011;Baranov et al, 2007;Kimura et al, 2016;Abraimov, 2017;Korsmik et al, 2018;Bogdan et al, 2019). It is known that the most loaded and expensive parts and assemblies are parts and assemblies of gas turbine flow path (first of all, the blades and disks of the compressor and turbine), thus, increasing the operational properties of the surface layer has become the most important task of modern aircraft manufacturing ( The solution to this problem is attempted using several approaches: development of promising, highly alloyed, polycrystalline and single crystal alloys; modernization of methods for manufacture, molding, and processing of products and blanks; development of new ways of surface treatment of parts and applying various protective coatings to their surface, including coatings from nanomaterials (Muboyajyan et al, 2012;Matveev et al, 2013;Ovchinnikov and Yakimov, 2016;Gadalov et al, 2017;Shaidurova et al, 2017;Buckhurst and Kaspersen, 2017;Batsikadze et al, 2017). Besides, intensive research is being performed on the creation of all-metal discs with blades, and these technologies have already found widespread application at leading enterprises in the aviation industry, both in several European countries and in the USA.…”