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Reconstruction of Regression Relationships for Determination of Strength Values for Alloys of Products in Diffusion Welding Sergei Kurashkin1,a*, Daria Rogova1,b , Alexander Lavrishchev1,c, Vadim Tynchenko1,2,d and Alexander Murygin1,e 1Reshetnev Siberian State University of Science and Technology, 31, Krasnoyarsky Rabochy Av., Krasnoyarsk, 660037, Russian Federation 2Siberian Federal University, 79, Svobodny pr., Krasnoyarsk, 660041, Russia Federation ascorpion_ser@mail.ru, bdasha_28_05@mail.ru, clav@optilink.pro, dvadimond@mail.ru, eavm514@mail.ru Keywords: Diffusion welding; Regression analysis; Non-compositional plan; Product alloys Abstract.
The aim of the research is to improve the quality of mathematical modeling.
Muraveynik, Diffusion welding of γ-TiAl based alloys through nano-layered foil of Ti/Al system, Intermetallics. 16 (2008) 1043-1045
Zhang, Fabrication and superior ductility of laminated Ti–TiBw/Ti composites by diffusion welding, Journal of Alloys and Compounds. 602 (2014) 187-192
Devi, Modeling longitudinal data based on Fourier regression, Journal of Physics: Conference Series. 1217 (2019) 012105

Lotnikow 32/46, 02-668 Warsaw, Poland 2Institute of Electron Technology, Krakow Division, Zablocie 39, 30-701 Krakow, Poland aaczerwin@ite.waw.pl, baskwarek@ite.waw.pl, cmpluska@ite.waw.pl, drataj@ite.waw.pl, ewitek@ite.waw.pl Keywords: tin pest, tin-rich alloys, Pb-free alloys, tin oxidation, EDXS measurements.
Samples of tin-rich lead-free alloys were subjected to accelerated low temperature stress and showed the tin pest occurrence, as described in [1].
Witek: Occurrence of tin pest on the surface of tin-rich lead-free alloys, Soldering & Surface Mount Technology 23 (2011) 184 – 190
Plumbridge: Further observations on tin pest formation in solder alloys, J.
Burns: A tin pest failure, Journal of Failure Analysis and Prevention 9 (2009) 461-465

Sample 4 is experimental alloys; the other alloys are the comparative alloys.
(2) All samples have steady cyclic life, while some samples have steady performance even after changing alloys
Dong: Journal of Alloys and Compounds vol.293-295 (1999) p. 799-803 [8] J.B.
Huang: Journal of Alloys and Compounds vol. 431 (2007) p. 321-325 [9] F.
Kang: Journal of Materials Processing Technology vol. 187-188 (2007) p. 197-201 [12] Shaoan Cheng, Jianqing Zhanga, Minhua Zhaob, Chunan Cao:Journal of Alloys and Compounds vol. 293-295 (1999) p. 814-820 [13] M.

The materials can be diffused or sintered appropriately before rolling composite, aimed at improving their combined status [8].
The reason is that Ti, Zr can refine the original grain size of alloy and lead to grain size of alloy smaller than Pt, at the same time Ti, Zr can improve effectively strengthening and toughening of materials.
In Fig.5B, intermetallic compounds are separated out along the metal layer interface, and not uniform.
The tensile fracture of PtTi0.5Zr0.2/Ti microlaminated composite material presents two kinds of areas, the ductile area of PtTi0.5Zr0.2 layer and Ti layer and the brittle area of intermetallic compounds.
Microstructure and properties of the EB-PVD process for preparing Ti/Ti-Al ultrathin multilayer composite materials, Journal of Aeronautical Materials. 28 (2008) 5-8

Sternitzke: Journal of the European Ceramic Society Vol. 17 (1997), p. 1061. ,[] A.R.
Sieger: Journal of Alloys and Compounds Vols. 434–435 (2007), p. 489. ] There are many paths to produce for production of materials at nanoscale, be used complex assembly process or traditional routes [[] G.
Podda and D.Minichelli: Journal of the European Ceramic Society Vol. 19 (1999), p. 347. ].
Sepelák: Journal of Materials Science Vol. 29 (16-17) (2004), p. 5487. .
Dreizin: Journal of the alloys and compounds Vol.478 (2009), p. 246. ]] In the two cited methods there are variations not only in size but also the morphology of obtained particles.

Research aimed at producing TiAl sheets through canned forging and rolling is introduced.
VAR is today still the most common method for alloyed TiAl alloys.
Narayan: Foundry Trade Journal Vol. 177 (2003), p. 24 [33] S Reed: in: Gamma Titanium Aluminides, eds.
Appel et al: Intermetallic Compounds, Vol. 3, Chap. 29, Wiley VCH (2002), p. 617
Kong: J. of Alloys and Comp.Vol. 457 (2008), p. 265

At the aim of improving cell structure, in the past decades, most research works focus on modification of blowing agents, changing size and shape of stabilizing additives, adding in alloying elements and optimizing foaming parameters[10-13].
Experimental Procedure Classical Al-Ca3%-TiH2 system was used for foaming experiment, at the aim of direct comparison to the results of other works.
Daniel Structural and compressive property correlation of closed-cell aluminum foam, Journal of Alloys and Compounds, 467(1–2), 2009: 550–556 [8] A.
Jiang, Preparation of density-graded aluminum foam Materials Science and Engineering: A, 618(17), 2014: 496–499 [13] C.C Yang, H Nakae, Foaming characteristics control during production of aluminum alloy foam, Journal of Alloys and Compounds, 313(15), 2000:188–191 [14] C.

Because of the properties of such alloys, they can be used as a coolant for other technical devices.
It is just noted that this system does not form intermetallic compounds [2].
The aim of this work is to model the phase equilibria in the Na–Cu and Na–K systems based on the available experimental data.
Alloy Phase Diagr., 7(1) (1986) 25-27
Khan, The pressure-temperature phase diagram of Na-K alloys and the effect of pressure on the resistance of the liquid phase, Physical review, 55 (1939) 750-754

Introduction AZ31 is a very commonly used Al-containing (or Zr-free) Mg alloy in the world today.
Accordingly, the primary aim of this study was to simultaneously increase strength and ductility of AZ31 with Al2O3 nanoparticles, based on the reinforcement integration method.
[2] Morisada, Y., Fujii, H., Nagaoka, T. and Fukusumi, M. (2006) Nanocrystallized magnesium alloy - uniform dispersion of C60 molecules, Scripta Materialia 55, 1067-1070
[4] Nguyen, Q.B. and Gupta, M. (2007) Increasing significantly the failure strain and work of fracture of solidification processed AZ31B using nano-Al2O3 particulates, Journal of Alloys & Compounds 459, 244-250
[6] Hassan, S.F. and Gupta, M. (2006) Effect of particulate size of Al2O3 reinforcement on microstructure and mechanical behavior of solidification processed elemental Mg, Journal of Alloys & Compounds 419, 84-90

This problem can be solved by applying wear-resistant coatings and chromium-based alloys.
The electrolyte has a high scattering ability and is recommended for chromium plating of copper and copper-plated parts with an underlayer of nickel, direct chromium plating of aluminum, its alloys and zinc casting.
The anions added are selected from the following compounds KCl, NaCl, NaF, MgCl2, CrCl3, H2SO4 at the temperature of 20−60°С, and the cathode current density iк = 10−270 A/dm2.
Danilov: submitted to Russian Journal of Applied Chemistry (2018)
Wu: submitted to International Journal of Hydrogen Energy (2009)