Yaroslava Shakhova

Evaluation of microstructural and mechanical properties of advanced materials developed by additive manufacturing technology.

Development of new wear resistance coatings for cylinders block.

Cylinders block of automobile engine undergoes intensive loads during exploitation. It is well known that the most important characteristic for cylinders block is resistant to different types of wear. First cylinders blocks were made from cast iron, but in order to made lighter cylinders block during last decades aluminum alloys are most interesting candidates for manufacturing cylinders block. Note here that aluminum alloys have low wear resistance. From this point of view it is interesting to develop new wear-resistant coatings for aluminum alloys used in the automotive industry.  As was mentioned above wear resistance coatings are necessary for aluminum alloys used in the automotive industry. New high entropy alloys developed during last few decades are of promising candidates for wear resistance coatings, since these alloy shows a high mechanical properties (hardness, tensile strength and so on), functional properties (wear resistance) and etc. As a method of coating deposition may be used thermal spaying, magnetron sputtering and etc.

Papers in peer-reviewed journals 

1. Shakhova, V. Dudko, A. Belyakov, K. Tsuzaki and R. Kaibyshev. Effect of large strain cold rolling and subsequent annealing on microstructure and mechanical properties of an austenitic stainless steel. Materials Science and Engineering A, 2012, Vol. 545, pp. 176-186.
2. E. Shakhova, Z.C. Yanushkevich, A.N. Belyakov. Effect of cold rolling on the structure and mechanical properties of austenitic corrosion-resistant 10Kh18N8D3BR steel. Russian Metallurgy (Metally), 2012, Vol. 9, pp. 772-778.
3. P. Zhilyaev, I. Shakhova, A. Belyakov, R. Kaibyshev, T.G. Langdon. Wear resistance and electroconductivity in copper processed by severe plastic deformation, Wear, 2013, Vol. 1-2, pp. 89-99.
4. P. Zhilyaev, I. Shakhova, A. Belyakov, R. Kaibyshev, T.G. Langdon. Effect of annealing on wear resistance and electroconductivity of copper processed by high-pressure torsion, Journal of Materials Science, 2014, Vol. 49, pp. 2270-2278.
5. Shakhova, Z. Yanushkevich, I. Fedorova, A. Belyakov, R. Kaibyshev. Grain refinement in a Cu – Cr – Zr alloy during multidirectional forging, Materials Science and Engineering A, 2014, Vol. 606, pp. 380 – 389.
6. Mishnev, I. Shakhova, A. Belyakov, R. Kaibyshev, Deformation microstructures, strengthening mechanisms and electrical conductivity in a Cu – Cr – Zr alloy, Materials Science and Engineering A, 2015, Vol. 626, pp. 29 – 40.
7. A. Lykyanova, N.S. Martynenko, I. Shakhova, A.N. Belyakov, L.L. Rokhlin, S.V. Dobatkin, Yu. Z. Estrin, Strengthening of age-hardenable WE43 magnesium alloy processed by high pressure torsion, Materials Letters, 2016, Vol. 170, pp. 5 – 9.
8. E. Shakhova, A.N. Belyakov, R.O. Kaibyshev, Mechanical characteristics and microstructure of weld joint of high-temperature martensitic steel containing 9% Cr, The Physics of Metals and Metallography, 2016, Vol. 117 (4), pp. 378 – 389.
9. P. Zhilyaev, I. Shakhova, A. Morozova, A. Belyakov, R. Kaibyshev, Grain refinement kinetics and strengthening mechanisms in Cu – 0,3Cr – 0,5Zr alloy subjected to intense plastic deformation, Materials Science and Engineering A, 2016, Vol. 654, pp. 131 – 142.
10. Shakhova, A. Belyakov, Z. Yanushkevich, K. Tsuzaki, R. Kaibyshev, On Strengthening of Austenitic Stainless Steel by Large Strain Cold Working, ISIJ International, 2016, Vol. 56, No. 7, pp. 1289–1296.

Papers in proceedings of international conferences 

1. Shakhova, Y. Sakai, A. Belyakov and R. Kaibyshev. Microstructure Evolution in a Cu-Ag Alloy during Large Strain Deformation and Annealing. Materials Science Forum, Vols. 667-669, 2011, pp. 493-498.
2. Shakhova, A. Belyakov, R. Kaibyshev, Y. Kimura and K. Tsuzaki. Submicrocrystalline Structures and Tensile Behaviour of Stainless Steels Subjected to Large Strain Deformation and Subsequent Annealing. Advanced Materials Research, Vol. 409, 2012, pp. 607-612.
3. Shakhova, A. Belyakov, A.P. Zhilyaev, R. Kaibyshev. Ultrafine grain evolution in a Cu–Cr–Zr alloy during warm multidirectional forging, Materials Science Forum, Vol. 783, 2014, pp. 2683 – 2688.
4. Belyakov, A. Kipelova, M. Odnobokova, I. Shakhova, R. Kaibyshev, Development of ultrafine grained austenitic stainless steel by large strain deformation and annealing, Materials Science Forum, Vol. 783, 2014, pp. 651 – 656.
5. Mishnev, I. Shakhova, A. Belyakov, R. Kaibyshev, Microstructure evolution in a Cu – Cr – Zr alloy during warm intense plastic straining, IOP Conference Series: Materials Science and Engineering, Vol. 63 (1), 2014, number 012094.
6. Shakhova, A. Belyakov, R. Kaibyshev, Effect of multidirectional forging and equal channel angular pressing on ultrafine grain formation in a Cu – Cr – Zr alloy, IOP Conference Series: Materials Science and Engineering, Vol. 63 (1), 2014, number 012097.
7. Shakhova, A. Belyakov, R. Kaibyshev, Effects of initial microstructure and deformation methods on grain refinement in a Cu – Cr – Zr alloy, Materials Science Forum, Vol. 838, 2016, pp. 308 – 313.
8. Mishnev, I. Shakhova, A. Belyakov, R. Kaibyshev, Superplastic behavior of a Cu – Cr – Zr alloy subjected to ECAP, Materials Science Forum, Vol. 838, 2016, pp. 404 – 409.

 Hirsch index – 5. 

Patents: 

1. RU2525006 «The Method of thermomechanical treatment of austenitic steels»;
2. RU2482197 «The Method of deformation and heat treatment of austenitic steels».

Current Research Interests in 

Microstructure, mechanical properties, corrosion resistance of metals and alloys processed by severe plastic deformation (equal channel angular pressing, multidirectional forging, cold rolling). Microstructure, mechanical properties, wear resistance of coatings obtained by thermal plasma spraying.  Different materials such as copper and copper – based alloys, stainless steel, heat-resistant steels were examined.

 Projects in Belgorod State University 

• Fabrication of high strength copper alloy with high electric conductivity. Function: researcher. Place: Belgorod State University (Belgorod, Russia). The projects was aimed to develop the copper alloy and technique for the fabrication of high strength semi-finished products using severe plastic deformation as equal channel angular pressing, multidirectional forging, cold rolling.
• Fabrication of a high-strength 304 type austenitic stainless steel by thermomechanical processing using direct/inverse martensitic transformations. Function: researcher. Place: Belgorod State University (Belgorod, Russia). The new route of thermomechanical processing involving extensive was rolling was developed. The relationship between deformation structure and mechanical properties was examined.
• Structural materials with nanoscale grained structure. Function: researcher. Place: Belgorod State University (Belgorod, Russia). The project was aimed to investigate the microstructure evolution resulting in the formation of nanoscale grains during severe plastic deformation in austenitic stainless steel. The mechanisms of grain refinement under intense plastic straining were established.

 Background 

Material Science including Atomic Arrangements in Solids, Imperfections in Crystalline Solids, Phase transformation in metals and alloys, Waves and Diffraction in Solids, Materials Characterization, Mechanical properties of materials, Fracture and Fatigue of Engineering Materials, Solid State Physics, X-ray diffraction, Transmission and Scanning Electron Microscopy, Structural steels and alloys, Corrosion and Stainless Materials, Welding, Forging and Rolling.