https://www.elibrary.ru/title_about_new.asp?i
1605-8119
Materials physics and mechanics
25
1
2016
1-89
RAR
RUS
1-8
Peter the Great St. Petersburg Polytechnic University
Rudskoy
Andrey
St.Petersburg, Russia
T-5749-2017
6602123579
0000-0002-2102-1076
Peter the Great St. Petersburg Polytechnic University
Kodzhaspirov
Georgij
kodjaspirov@spbstu.ru
St.Petersburg, Russia
VŠB – Technical University of Ostrava
Kliber
Ostrava – Poruba, Czech. Republic
University of Patras
Apostolopoulos
Greece
Advanced metallic materials and processes
The following main tendencies in the evolution of metal science are described: development of new materials with predetermined mechanical, physical and functional properties as e.g. amorphous materials, ultra-fine-grained (including nanostructured) etc. Advanced resource-saving technologies applied to traditional and new materials as e.g. different schemes of thermomechanical processing, cyclic thermal treatment, cyclic deformation treatment etc. are presented. Application of advanced techniques: laser beam, highenergy electron-beam, plasma and simulation technique are described as well.
advanced metallic materials; mechanical
physical and functional properties; resource-saving technologies
https://mpm.spbstu.ru/article/2016.45.1/
MPM125_01_rudskoy.pdf
RAR
RUS
9-15
Leibniz Universität
Behrens
Hannover, Germany
Leibniz Universität
Bouguecha
Hannover, Germany
Leibniz Universität
Vucetic
Hannover, Germany
Leibniz Universität
Peshekhodov
Hannover, Germany
Leibniz Universität
Kazhai
Hannover, Germany
Peter the Great St. Petersburg Polytechnic University
Ganin
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Matveev
St.Petersburg, Russia
Physical simulation of precipitation hardened ferrite-pearlite steels during hot deformation processing
Simulation processes of static and dynamic recrystallisation were carried out with Gleeble 3800 System. The resulting data form the basis of a statistical database, linking chemical composition - processing parameters - structure - mechanical properties, which will form the base of the mathematical models of the evolution of the microstructure of the steels subjected to the experiment.
ferrite-pearlite steels; hot deformation processing; physical simulation; static and dynamic recrystallization
https://mpm.spbstu.ru/article/2016.45.2/
MPM125_02_ganin.pdf
RAR
RUS
16-21
VŠB – Technical University of Ostrava
Kliber
Ostrava – Poruba, Czech. Republic
Dissipation of energy and instability process in various alloys based on plastometric tests
Energy dissipation and plastic flow instability were investigated in P91 steel and Ms70 brass on the basis of continuous tests carried out on Setaram and Gleeble plastometers. Mathematical evaluation of continuous curves was supported with calculation of larger range of input parameters using the "sin h" equation. For energy dissipation calculation strain rate sensitivity parameter (m=(d ln σ)/(d ln ė)) was computed and further the efficiency according to the η=2m/(m+1) formula. Equation ξ=(∂ ln(m/(m+1)))/(∂ ln ė)+m was utilized for the instability parameter calculation. The results were evaluated using Sigmacon, Gnuplot and Golden Surfer computer softwares. The final results are 2D and 3D material processing maps. Results of tests carried out with P91 steel and Ms70 brass were compared to experimental results of other authors with high correlation.
alloys; energy dissipation; flow instability; plastometric tests
https://mpm.spbstu.ru/article/2016.45.3/
MPM125_03_kliber.pdf
RAR
RUS
22-29
University of Ioannina
Apostolopoulos
Ioannina, Greece
University of Ioannina
Matikas
Ioannina, Greece
T-5749-2017
6602123579
0000-0002-2102-1076
Peter the Great St. Petersburg Polytechnic University
Kodzhaspirov
Georgij
kodjaspirov@spbstu.ru
St.Petersburg, Russia
Structural integrity of steel bar under seismic loads
In the current study, a research was conducted in three different steel categories of high and medium ductility such as B400c, B450c and B500b under seismic loads which were simulated with low cycle fatigue tests. Based on the results of mechanical tests, SEM and EDX on the above steel specimens before and after accelerated corrosion it is important to mention the negative role of sulfides, as it is mainly MnS inclusions, with existence of chloride ions and buckling phenomena in Structural Integrity of rebars.
steels; seismic loads; structural integrity
https://mpm.spbstu.ru/article/2016.45.4/
MPM125_04_apostolopoulos.pdf
RAR
RUS
30-36
Peter the Great St. Petersburg Polytechnic University
Skvortsova
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Lycheva
St.Petersburg, Russia
Ioffe Institute
Voznyakovskii
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Koltsova
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Larionova
St.Petersburg, Russia
Strengthening mechanisms and properties of composite materials with carbon nanofibres
Possible mechanisms of metal matrix strengthening caused by carbon nanostructures additions are considered. The experimental and calculated data have been compared. It is shown that the strengthening of the composite mainly resulted from the metal matrix grain refinement. The results are well consistent with Hall-Petch ratio as for copper-based composites so for aluminum-based ones if there is no carbide phase formed. When Al4C3 carbide phase formed the strengthening is caused by the new phase formation.
composites with carbon nanofibres; strengthening mechanisms
https://mpm.spbstu.ru/article/2016.45.5/
MPM125_05_koltsova.pdf
RAR
RUS
37-41
Institute of Solid State Physics, Russian Academy of Sciences
Каrpov
Chernogolovka, Russia
Institute of Solid State Physics, Russian Academy of Sciences
Коrzhov
Chernogolovka, Russia
Institute of Solid State Physics, Russian Academy of Sciences
Prokhorov
Chernogolovka, Russia
Preparation and characteristics heat-resistant composites with high specific strength developing
The work is devoted to the study of preparation and characteristics of the development of high-resistance composites with high specific strength. The basis for these composites is the system Nb-Al. For the preparation of the samples were applied powder metallurgy technology and the creation of laminated structures by combining diffusion bonding and batch rolling. Results showed that the most significant changes are noted due to an increase of the volume fraction of intermetallic phases, which provide high strength at high temperatures. Short-term three-point bending strength at 1300 °C reached 800 MPa. Also tests have been carry out for the creep at high temperature in a similar way.
heat-resistant composites; high specific strength; diffusion bonding; batch rolling
https://mpm.spbstu.ru/article/2016.45.6/
MPM125_06_karpov.pdf
RAR
RUS
42-48
Belgorod State University
Salishchev
Belgorod, Russia
Tohoku University
Mironov
Sendai, Japan
Belgorod State University
Zherebtsov
Belgorod, Russia
Belgorod State University
Belyakov
Belgorod, Russia
Effect of deformation on misorientations of grain boundaries in metallic materials
The changes in grain boundary misorientations during plastic deformation of titanium were studied by means of the EBSD technique. The misorientation of all types of the grain boundaries including low- and high-angle boundaries, coincident site lattice (twin) and arbitrary boundaries, deformation-induced boundaries and the boundaries of the original grains was found to change during deformation. It was shown that the deformation may result in either increasing or lowering of the boundaries misorientation and different segments of the same grain boundary may develop principally differently. The most significant changes of the boundary misorientation were found to be associated with the boundary junctions. The change in misorientations during deformation was discussed interms of the interaction of a boundary with dislocations and/or with other boundaries.
metallic materials; plastic deformation; misorientations of grain boundaries
https://mpm.spbstu.ru/article/2016.45.7/
MPM125_07_salishchev.pdf
RAR
RUS
49-55
T-5749-2017
6602123579
0000-0002-2102-1076
Peter the Great St. Petersburg Polytechnic University
Kodzhaspirov
Georgij
kodjaspirov@spbstu.ru
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Kitaeva
D.A.
St.Petersburg, Russia
Kyrgyz-Russian Slavic University
Rudaev
Bishkek, Kyrgyzstan
Kyrgyz-Russian Slavic University
Subbotina
Bishkek, Kyrgyzstan
Task of longitudinal rolling procedure of aluminum sheet under superplasticity conditions
The two-dimensional task of isothermal rolling of aluminum sheet in the superplasticity conditions realized with a low angle of nip is considered. For the mathematical formulation of the task, the theory of elasto-plastic processes ratios of the small curvature was attracted, and the state equation is suitable for the description of regularities of high-temperature deformation in the wide strain rate-rate interval including the conditions of superplasticity effect realization. The specific calculations of the roll force distribution corresponds to thermal superplasticity conditions and outside of its applied to industrial alloy AMg5 was carried out and the results were compared. The experimental realization of the process has been realized in the approximate chemical composition alloy 1561 with the producing fine-grained structure in the rolled product.
theory of elasto-plastic processes ratios of the small curvature; longitudinal rolling procedure of aluminum sheet; superplasticity
https://mpm.spbstu.ru/article/2016.45.8/
MPM125_08_kitaeva.pdf
RAR
RUS
56-61
Peter the Great St. Petersburg Polytechnic University
Kondrat’ev
St.Petersburg, Russia
Central Research Institute of Structural Materials “Prometey”
Fuks
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Anastasiadi
St.Petersburg, Russia
Central Research Institute of Structural Materials “Prometey”
Ptashnik
St.Petersburg, Russia
Central Research Institute of Structural Materials “Prometey”
Sviatysheva
St.Petersburg, Russia
Assissment of operability of the heat resisting HP40Nb at overheats to 1150 °C
Experimentally was determined long-term strength of cast heat-resistant alloy HP40Nb at the temperature of 1150 °C. It was shown that on this feature this alloy is not inferior to alloys with more nickel and tungsten, which allows rising its operational temperature range up to 1100-1150 °C. The equation, which allows calculating the value of long-term strength of the alloy HP40Nb at different values of the external stress, was found.
heat-resistant alloy HP40Nb; strength at overheats to 1150 °C
https://mpm.spbstu.ru/article/2016.45.9/
MPM125_09_kondratiev.pdf
RAR
RUS
62-67
I.P. Bardin Central Research Institute of Ferrous Metallurgy
Glezer
Moscow, Russia
I.P. Bardin Central Research Institute of Ferrous Metallurgy
Permyakova
Moscow, Russia
G.R. Derzhavin Tambov State University
Feodorov
Tambov, Russia
Features of cracks formation in the laser treatment zone of amorphous alloys
The deformation and fracture of amorphous alloys in the zone of laser treatment were investigated. A technique of determination the liability to cracking of amorphous alloys under local loading and thermal history were proposed. This method allows to estimate the annealing temperature, which corresponds to the ductile-brittle transition of the material and heat temperature in the zone of laser treatment.
amorphous alloys; laser treatment; deformation and fracture
https://mpm.spbstu.ru/article/2016.45.10/
MPM125_10_glezer.pdf
RAR
RUS
68-76
Peter the Great St. Petersburg Polytechnic University
V.N. Tsemenko
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Ganin
St.Petersburg, Russia
Peter the Great St. Petersburg Polytechnic University
Phuc
St.Petersburg, Russia
Research and simulation of the deformation process of dispersion-hardened powder in a capsule
The results of a comparative analysis of process modeling deformation of powder materials. Qualitative pattern and the amount of deformation obtained through simulation, substantially coincide with the experimental results. Thus, appropriate computer model developed and studied the possibility of their use in modeling complex processes of plastic deformation of the powder materials.
powder materials; plastic deformation; computer modeling
https://mpm.spbstu.ru/article/2016.45.11/
MPM125_11_ganin.pdf
RAR
RUS
77-82
Ufa State Aviation Technical University
Raab
Ufa, Russia
Kazan Federal University
Shibakov
Kazan, Russia
Ufa State Aviation Technical University
Raab
Ufa, Russia
Promising methods of SPD to obtain nanostructures metallic materials
The manuscript provides the results of investigations and the analysis of advanced schemes of severe plastic deformation (SPD) creating conditions of non-monotonic exposure at drawing and rolling of long-length metallic materials. The manuscript shows the efficiency of schemes in terms of nanostructured states processing and the advance of further studies for possible commercial implementation.
severe plastic deformation (SPD); nanostructured metallic materials
https://mpm.spbstu.ru/article/2016.45.12/
MPM125_12_raab.pdf
RAR
RUS
83-89
Institute of Solid State Physics, Russian Academy of Sciences
Zheltyakova
Moscow, Russia
Institute of Solid State Physics, Russian Academy of Sciences
Каrpov
Chernogolovka, Russia
Institute of Solid State Physics, Russian Academy of Sciences
Коrzhov
Chernogolovka, Russia
Features of microstructure and mechanical characteristics of a laminated composite with high specific strength and moderate heat resistance
The work is devoted to the study of the formation of structure and mechanical characteristics of the laminated composites of the system Ti-Al and Ti-Al-Me with high specific strength and moderate heat resistance. The investigation of a microstructure of the composite sample showed that it consists of a solid solution of aluminum in titanium, zirconium, and intermetallic layers Ti3Al, TiAl, TiAl2 and TiAl3. Results of short-term tests on 3 point bending showed that the average values of tensile strength of alloy composites are at the level 820 MPa and 993 MPa, and the doped composite - 952 MPa and 1352 MPa at temperatures of 20 and 700 °C, respectively.
laminated composite; microstructure; titanium; aluminum; intermetallic layers; diffusion bonding; short-term and long-term strength
https://mpm.spbstu.ru/article/2016.45.13/
MPM125_13_zheltyakova.pdf