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Investigation of the process of electric arc synthesis and thermal centrifugal dispersion of KV for the implementation of the technology for the manufacture of powders, with a main fraction size of 0.5-8 microns, a spheroidal grain shape, suitable for the manufacture of high-quality metal-cutting tools and a raw material basis for additive technologies for the production of complex-shaped products of a wide range. 2.
Organization of production of powder raw materials for additive and instrumental industries Current State of Technology for the Production of Dispersed Powders From 1973 to 2017, the properties and phase transformations of the W-C system, studies of the structure and properties of individual phases (W2C; WC; WCi-x), the synthesis of carbides, and the formation of coatings were devoted to over 600 works The composition and properties of the powder depend on the method of its preparation, each of which has a number of disadvantages (table 1.) [1 - 5].
The particle size depends on a number of factors: the diameter of the blanks, the speed of rotation and feed of the rods, the intensity of the heat flux of the plasma arc, the presence and nature of the gas atmosphere in the reactor.
Modeling, 1999, volume 11, number 2, 55–64)

A number of thermoplastic or thermo-type polymers are used in various forms, such as liquid resins, powder and latex redispersibile, water soluble polymers or copolymers to change concrete and mortar [1].
But the builders are skeptical about use of these types of materials either the small number of research carried out on these materials or due to their higher costs.
As the water penetrates the the matrix and reach the surface of unhydrated cement particle, new reactions take been, new products appear which cause cracking in polymer and etringit matrix and the hydration of mineralogical compounds with hydraulic activity from cement grain (calcium silicates) is carried out.
In these mixtures, it can also be seen a large number of air voids.

The average grain size of the material was 40 7 microns.
This behavior may be ascribed either to the formation of phosphide precipitates in lower number densities or to their near absence.
Differences in diffusion behavior and the number density of TiC precipitates formed due to the variation in Ti concentration cause significant changes in the swelling behavior.
By systematically varying the welding parameters such as peak current, background current, pulse width, pulse rate, welding speed, arc gap, electrode tilt, gas flow rate, and total time of welding during the trials, the number of cracks and their dimensions were gradually brought down and finally completely eliminated [11].

Probably, the effect of dislocations, which form subgrain boundaries, on dislocation nucleation in Mo single crystal under the indenter is insignificant as the size of even the smallest grains (200 µm) is considerably larger than the contact size.
Values of power law exponent m are 1 for flat cylinders, 1.5 for spheres and 2 for cones. 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 2 4 6 8 10 Number of events Critical load Pc, mN (001) Mo a 0.0 0.5 1.0 1.5 2.0 2.5 3.0 0 2 4 6 8 10 12 14 16 Number of events Critical load Pc, mN (001) Mo - Ir b Fig. 3.
Besides, because of the solid solution strengthening the stress necessary to activate the Load P h а R hс Zone of the highest shear stress multiplication source (for example, the FranK - Read source) of the same configuration is higher in the Mo - Ir single crystal. 0 5 10 15 20 25 0 5 10 15 20 25 30 Number of events Critical shear stress τcrit, GPa Mo Mo - 1.5Ir Fig. 6.

For the problem solution, 3n FFD was selected, where n is the number of variables and 3 is the number of levels for each variable.
(1) where F(x) is the response, xi and xj are the values of variables, b0 is the constant, bi, bj and bij are the regression coefficients, respectively, and m is the number of the variables.
Locs, Development and Characterization of Grain Husks Derived Lignocellulose Filler Containing, Polym.

Automation and flexibility of production allowed to reduce the time and cost of development and implementation of complex geometric shapes of a large number of parts [4, 5].
In the case of differences in surface texture, sphericity of particles, chemical composition of the powder of one batch, an article with poor surface quality and a large number of pores may be formed.[17].
[18] Steel symbol/number: X2CrNi21–10/1.4331 [electronic resource].
Kolubaev, Microstructure and grain growth inhomogeneity in austenitic steel produced by wire-feed electron beam melting: the effect of post-building solid-solution treatment, J.

.%) 10.56 7.25 18.24 42.18 21.74 Microstructural characterization The metallographic samples extracted from AlCrNiCuMn ingots were first polishing with SiC wet metallographic papers (P60-P1200), then mirror polished with Al2O3 suspensions (1 μm and 0.02 μm grain sizes).
SEM analysis under atomic number contrast (elemental map) reveals a different chemical composition for the dendrites and biphasic interdendritic matrix.
SEM observations under atomic number contrast reveal a different chemical composition for the lamellae, with a higher concentration of Cr in a dendritic (DR) domain, is forming a phase of Cr-Mn.
Acknowledgments This work was supported by a grant of the Romanian National Authority for Scientific Research, CNCS-UEFISCDI project number PN-II-PT-PCCA-2013-4-1048.

Mn is added to increase the strength of the Al-Mg-Si alloy as well as to control the grain size [4,5].
In addition the number of deep tips and crevices decreases for the finer polished surface Fig. 1 a) line scans of a surface polished with 0.25µm diamond paste and polished with SiC paper grit 4000 b) Number of tips and crevices measured on line scans of 500µm length for a surface grinded with SiC paper grit 4000 and a surface polished with diamond paste 0.25µm.From the data given in Fig. 1 b) crevice distance can be estimated which can be related to possible initiation site density.
Despite the reduced number of crevices in the measured area the PP is astoundingly low, namely -578mV ±73mV.

However, in addition to the fruits mentioned above, the Northeast region has a considerable number of tropical fruits, considered exotic, with a pleasant taste and smell, rich in various types of vitamins, carbohydrates, minerals and bioactive components of importance for a healthy life, where is the mangaba (Hancornia speciosa Gomes), whose fruit is part of this statistic [1].
(3) Where, n is the number of values obtained, P are the values calculated by the model and O are the experimental values Results and Discussion As a result of the drying process, it was observed that, like other tropical fruits, such as jabuticaba [7], the mangaba requires long periods of drying due to the high water activity.
These conditions led to a reduction in the number and quality of the experimental points collected, with considerable deviations, which certainly also affects the accuracy of the estimated parameter of pseudo-equilibrium moisture and drying time.
Thus, the diffusive process of the water contained in the product happens from the center to the surroundings, evaporating in a milder balanced way, fact observed in grains such as rice [12].

Despite a rather wide range of studies of individual nuances of deformation and fracture modeling under the simplest loading methods, such as, for example, neck formation during specimen tension [1-5], the main questions remain insufficiently disclosed: how does the form of the studied objects affect the simulation results; is there any correlation with experimental data; is there a dependence of the deformation and fracture pattern on the geometric form of the unit cells; what is the effect of neglect of structural (degree of contaminating impurity with non-metallic inclusions, shape and size of grains, etc.) and defective (surface roughness, internal defects) factors on the accuracy of the results, and many others.
The number of cells for cylindrical specimens and segments is ~ 60000, for pipe specimens ~ 270000.
However, it should be borne in mind that mesh refinement or an increase in the number of processing steps inevitably leads to an increase in the calculation time.
MPa] Cylindrical samples Experiment 501 38 31,0 - DEFORM 494 59 43,1 897 Marc (pyramid) 487 43 40,0 787 Marc (cube) 494 38 30,9 795 Marc (prism) 492 45 32,5 777 Segments Experiment 474 57 69,7..86,9 - DEFORM 342 58 90,4 1060 Marc (pyramid) 507 53 106,7 818 Marc (cube) 487 53 63,6 825 Marc (prism) 467 53 82,1 854 Tubes Experiment 509 38 138,3..160,5 - DEFORM 374 32 120,0 833 Marc (pyramid) 451 12 82,0 797 Marc (cube) 637 29 144,0 744 Marc (prism) 756 27 107,0 806 Tubes without flattening DEFORM 493 42 127,0 998 Marc (pyramid) 490 29 115,0 786 Marc (cube) 489 30 76,0 749 Marc (prism) 490 32 70,0 879 Notes: L – distance from the moving edge of the sample to the neck smax – maximum von Mises stresses at the moment of fracture As can be seen from the analysis of the models built in Marc, the geometric form of elementary cells has a significant effect on the results - the numerical values of the mechanical characteristics, the localization of the stress and strain distribution fields, the number