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Tytuł:
Welding with micro-jet cooling as a way to improve the mechanical properties of mode of transportation shaft surface
Autorzy:
Hadryś, D.
Powiązania:
https://bibliotekanauki.pl/articles/374158.pdf
Data publikacji:
2018
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
surface welding
micro-jet cooling
friction
mode of transportation shaft
napawanie laserowe
chłodzenie mikrojetowe
tarcie
Opis:
The use of surface welding with micro-jet cooling allows to control the structure of the surface layer. It is a way to significantly increase the mechanical properties (for example hardness) of the surface layer. The effect of this is to extend the life of the kinematic pair. The main aim of this paper was to determine the influence of using micro-jet cooling for surface welding on tribological properties (e.g., friction coefficient and weight loss). Results of traditional surface welding (without micro-jet cooling) were compared with results of surface welding with micro-jet cooling. In this case, the medium of cooling was argon and nitrogen. Hardness, time to seizure, friction coefficient, and specimen weight loss were compared. The results showed that the use of a suitable cooling medium for surface welding process could improve the tribological properties of the surface weld.
Źródło:
Transport Problems; 2018, 13, 4; 65-76
1896-0596
2300-861X
Pojawia się w:
Transport Problems
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of process parameters of friction stir welded AA5082-AA7075 butt joints using resonance fatigue properties
Autorzy:
Kumar, G.
Kumar, R.
Powiązania:
https://bibliotekanauki.pl/articles/200299.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
friction stir welding
dissimilar Al welding
resonance fatigue analysis
fracture surface analysis
ANOVA
Opis:
In this work, experiments were carried out to quantify the behaviour of friction stir welded (FSW) AA5082-AA7075 butt joints under tensile loading and completely reversed fatigue loading. Different samples were prepared to identify optimum tool rotational and travel speeds to produce FSW AA5082-AA7075 butt joints with the maximum fatigue life. ANOVA was performed, which confirmed that both tool speed nad tool rotation speed affect the tensile strength of the weld. The samples exhibit a considerable difference in their fatigue life and tensile strenght. This difference can be accounted to the presence of welding defects such as surface defects and porosity. S-N curve plotted for the sample shows a significantly high fatigue life at the lower stress ranges. Fracture surfaces were also analysed under scanning electron microscope (SEM). Study of the fracture surface of the sample that failed under fatigue loading showed that the surface was mainly divided in two zones. The first zone was the area of fatigue crack growth where each stress cycle, slowly and gradually, helped in the growth of crack. The second zone was the region of fast fracture where the crack growth resulted in the failure of the joint instantaneously. The fracture surface study of the sample that failed under tensile loading showed that the mode of failure was ductile in nature.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2020, 68, 1; 99-108
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Prediction and Optimization of Magnetic Properties of Laser Welded AISI 430 Stainless Steels
Autorzy:
Mostaan, H.
Rafiei, M.
Powiązania:
https://bibliotekanauki.pl/articles/353110.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
AISI 430
response surface methodology
laser welding
magnetic properties
Opis:
The AISI 430 stainless steel with ferritic structure is a low cost material for replacing austenitic stainless steel because of its higher yield strength, higher ductility and also better polarisation resistance in harsh environments. The applications of AISI 430 stainless steel are limited due to insignificant ductility and some undesirable changes of magnetic properties of its weld area with different microstructures. In this research, a study has been done to explore the effects of parameters of laser welding process, namely, welding speed, laser lamping current, and pulse duration, on the coercivity of laser welded AISI 430 stainless steel. Vibrating sample magnetometery has been used used to measure the values of magnetic properties. Observation of microstructural changes and also texture analysis were implemented in order to elucidate the change mechanism of magnetic properties in the welded sections. The results indicated that the laser welded samples undergo a considerable change in magnetic properties. These changes were attributed to the significant grain growth which these grains are ideally oriented in the easiest direction of magnetization and also formation of some non-magnetic phases. The main effects of the above-mentioned factors and the interaction effects with other factors were evaluated quantitatively. The analysis considered the effect of lamping current (175-200 A), pulse duration (10-20 ms) and travel speed (2-10 mm/min) on the coercivity of laser welded samples.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 4; 1673-1682
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Discrete Wavelet Transformation Approach for Surface Defects Detection in Friction Stir Welded Joints
Autorzy:
Mishra, Akshansh
Powiązania:
https://bibliotekanauki.pl/articles/2105144.pdf
Data publikacji:
2020
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Lotnictwa
Tematy:
Machine Vision
Surface Defects
Friction Stir Welding
Python programming
Opis:
Friction Stir Welding joint quality depends on input parameters such as tool rotational speed, tool traverse speed, tool tilt angle and an axial force. Surface defects formation occurs when these input parameters are not selected properly. The main objective of the recent paper is to develop Discrete Wavelet Transform algorithm by using Python programming and further subject it to the Friction Stir Welded samples for the identification of various external surface defects present.
Źródło:
Fatigue of Aircraft Structures; 2020, 12; 27--35
2081-7738
2300-7591
Pojawia się w:
Fatigue of Aircraft Structures
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Study on Underwater Explosive Welding of Al-Steel Coaxial Pipes
Autorzy:
Yu, Y.
Ma, H.
Zhao, K.
Shen, Z.
Cheng, Y.
Powiązania:
https://bibliotekanauki.pl/articles/358620.pdf
Data publikacji:
2017
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Przemysłu Organicznego
Tematy:
metal-matrix composites
explosive welding
surface ablation
microstructures
bonding interface
Opis:
In order to solve the aluminum surface ablation issue of Al-Steel bimetallic pipes manufactured by the explosive welding technique, a novel explosive welding system has been designed to weld Al-Steel coaxial pipes. The stand-off distance was chosen according to an empirical formula. A special Explosive Cord with an aluminum coating was used as the explosive. Four experiments were performed using Explosive Cords 1, 2, 3 and 4, respectively. In each experiment, three reliable PVDF (Polyvinylidene Fluoride) piezoelectric film sensors were used to sample the impact pressure between the parent pipe and the flyer pipe along the detonation direction. p-t Curves were obtained at different points on the bimetallic pipe manufactured by Explosive Cord 1. In order to observe the inner surface and to judge the bonding interface, specimens were cut along the axial direction. BSE (Backscattering Electron) images of the interfaces were obtained. According to these pictures from all of the specimens cut along the axial direction, the surface ablation phenomenon has disappeared. The bimetallic pipe manufactured by the new welding system using Explosive Cord 3 has an irregular wavy interface, between micro and small wavy interface, which is one of the best bonding forms.
Źródło:
Central European Journal of Energetic Materials; 2017, 14, 1; 251-265
1733-7178
Pojawia się w:
Central European Journal of Energetic Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Brushing on Residual Stress and Surface Roughness of EN AW-2024-T3 Aluminum Alloy Joints Welded Using the FSW Method
Autorzy:
Bucior, Magdalena
Kluz, Rafał
Kubit, Andrzej
Ochał, Kamil
Powiązania:
https://bibliotekanauki.pl/articles/2201870.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
brushing
aluminum alloy
friction stir welding
FSW
surface roughness
residual stress
Opis:
This article presents the influence of the brushing process on residual stress and surface roughness of EN AW-2024-T3 aluminum alloy joints welded using the Friction Stir Welding (FSW) method. Butt joints with thicknesses of 2 mm were brushing with using ceramic brush. The aim of the study was to find optimal parameters of the brushing process, which would significantly improve the functional properties of welded joints. The experiments were carried out in two steps. In the first stage of the research, the feed rate was changed in the range f = 40 ÷ 120 mm / min with a constant brushing depth d = 0.5 mm. The roughness decreased from Sa = 5.285 µm for the specimen after welding to Sa = 2.460 µm for the f = 120 mm/min and d = 0.5 mm. The change in the parameters of the brushing process did not have a significant impact on the state of residual stresses. Hence, in the second step, the brushing depth was increased in steps of 0.1 mm. The best properties were obtained for f = 120 mm / min and d = 0.6 mm (variant 6A), where roughness was Sa = 0.443 µm and compressive stresses σ = -118 MPa.
Źródło:
Advances in Science and Technology. Research Journal; 2023, 17, 1; 86--93
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Shaping the parameters of cylindrical belt surface in the joint area
Autorzy:
Wałęsa, Krzysztof
Malujda, Ireneusz
Wilczyński, Dominik
Powiązania:
https://bibliotekanauki.pl/articles/386444.pdf
Data publikacji:
2019
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
hot plate welding
flash
flash removing
surface processing
cutting
round drive belts
Opis:
Most of the industrial machines use round-shaped drive belts for power transfer. They are often a few millimetres in diameter, and made of thermoplastic elastomer, especially polyurethane. Their production process requires the bonding step, which is often performed by butt welding, using the hot plate method. The authors have undertaken to design an automatic welding machine for this purpose. Consequently, it is required to carry out a process analysis of hot plate welding, which entails describing the dependency between technological parameters (temperature, pressure force, time) and the quality of the joint, especially the outer surface of the belt around the weld. To analyse this process in a proper way, it is necessary to describe the physical phenomena that occur in the material, during particular operations of the hot plate welding process. One of the most troublesome phenomena occurring during the welding process is removing of the flash. These round rings, placed around the weld, which remains after the joining process, are unacceptable in the finished component. The authors took an effort to design the necessary equipment for removing of the flash after welding, using some simple parts that cut off excessive material. The paper shows the three possible solutions for flash removal. They were verified experimentally, and afterwards, the best solution was chosen. Additionally, a number of analytical calculations were carried out in order to determine the maximum force value required for this operation. Results of the analytical calculations were compared with experimental results.
Źródło:
Acta Mechanica et Automatica; 2019, 13, 4; 255-261
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigating the effects of laser stellite pad welding on the service properties of valve steels
Autorzy:
Bogdanowicz, Z.
Grzelak, K.
Powiązania:
https://bibliotekanauki.pl/articles/246197.pdf
Data publikacji:
2009
Wydawca:
Instytut Techniczny Wojsk Lotniczych
Tematy:
internal combustion engine
exhaust valve
laser pad welding
surface layer
service proprieties
Opis:
In the work the results of tests on 50H21G9N4 and H9S2 valve steels with pad welded stellite layers are presented. Basic properties such as tribological and erosion resistance as well as high temperature oxidation resistance were determined. Testing conditions were accepted with certain simplification owing to the complexity oj mechanical and thermal load exhaust valves and, therefore, they do not reflect real operating conditions accurately. Specimens with and without laser, plasma and TIG pad welded stellite layers were subject to tests. The conducted tests showed the highest tribological resistance of stellite layers under the conditions of dry friction in comparison with the material in the initial state as well as plasma and TIG pad welded stellite layers. The main mechanism of the abrasive wear of the surface layer is an adhesive wear by breaking the connections and adhesions that are being formed. The research on wear by abrasive erosion showed a smaller decrease in the mass of specimens with pad welded stellite layers in comparison with plasma and TIG pad welded stellite layers as well as the material in the initial form without the pad welded stellite layer. The resistance of stellite layers to high temperature oxidation was showed in the research on heat resistance. Moreover, it was found that pad welding does not have any significant influence on the heat resistance of stellite layers.
Źródło:
Journal of KONES; 2009, 16, 1; 41-50
1231-4005
2354-0133
Pojawia się w:
Journal of KONES
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Temperature Field in Surfaced Steel Casts with the Heat of the Weld Taken into Account
Autorzy:
Winczek, J.
Powiązania:
https://bibliotekanauki.pl/articles/383043.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
surface treatment
temperature field
welding
surfacing
obróbka powierzchniowa
pole temperatury
spawalnictwo
napawanie
Opis:
In this work a model of temperature field in a steel cast during surfacing was presented. Analytical solution for half-infinite body model was obtained by aggregating temperature increments caused by applying liquid metal and heat radiation of moving electrode. The assumptions were Gaussian distribution heat sources of applied metal and weld and of electric arc heat source. Computations of temperature field were carried out during surfacing of cuboidal steel cast. The results were presented as temporary and maximum temperature distribution in element’s cross section and thermal cycles at selected points. The accuracy of solution was verified comparing calculated fusion line to that obtained experimentally.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1 spec.; 121-126
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Zgrzewanie oporowe w praktyce inżynierskiej
Resistance heating in engineering practice
Autorzy:
Lonkwic, Paweł
Usydus, Ireneusz
Powiązania:
https://bibliotekanauki.pl/articles/2204828.pdf
Data publikacji:
2022
Wydawca:
Wydawnictwo AWART
Tematy:
zgrzewanie oporowe
jakość powierzchni
siła połączenia
resistance welding
surface quality
connection strength
Opis:
Zgrzewanie oporowe, zarówno punktowe jak i liniowe wykorzystywane jest w wielu branżach. Z uwagi na krótki czas operacji obserwuje się szybki wzrostu liczby produkowanych detali tą technologią łączenia. Można ją stosować do łączenia materiałów, tzw. jednoimiennych oraz dwuimiennych (blach o różnych grubościach). W artykule przedstawiono analizę informacji literaturowych oraz rezultaty badań eksperymentalnych z tego zakresu, na podstawie których wskazano czynniki determinujące jakość połączeń wykonanych tą technologią.
Point and linear resistance welding are used in many industries. Due to the short operating time, a rapid increase in the number of parts can be observed with this connection technology. It can be used to connect so-called one-name and two-name materials (sheets with different thicknesses).In this paper analyses literature information and experimental investigations on this domain were consisted. On the basis of experiments factors determining the quality of connections with this technology were identified. resistance welding, surface quality, connection strength.
Źródło:
Obróbka Metalu; 2022, 2; 47--53
2081-7002
Pojawia się w:
Obróbka Metalu
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Welding tendency for selected contact materials under different switching conditions
Tendencja sczepiania wybranych materiałów stykowych w różnych warunkach łączeniowych
Autorzy:
Ksiazkiewicz, Andrzej
Janiszewski, Jerzy
Powiązania:
https://bibliotekanauki.pl/articles/301379.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
relays
contact materials
contact welding
surface erosion
przekaźniki
materiały stykowe
sczepianie styków
erozja powierzchni
Opis:
The flow of significant current through electric contacts may lead to contact welding. In a.c. circuits this phenomena is not only dependent on properties of contact material (i.e. resistance to welding) but on the phase in which current is switched on. Welding tendency for contact materials made from AgNi, AgCdO and AgSnO2 was evaluated based on selected phase at which make operation took place. The test circuit was protected by overcurrent apparatus to simulate real working environment. It is observed that welding tendency for the selected contact materials is contingent to current phase at which make operation is done.
Przepływ znacznego prądu przez styki elektryczne może prowadzić do ich sczepienia. W obwodach prądu przemiennego to zjawisko jest nie tylko zależne od właściwości materiału stykowego (tj. odporności na sczepianie), ale od fazy, w której prąd jest załączany. Zbadana została tendencja do sczepiania się styków, w zależności od fazy załączania prądu, wykonanych z następujących materiałów stykowych: AgNi, AgCdO i AgSnO2. Obwód probierczy zabezpieczony był przez zabezpieczenia nadprądowe, w celu symulacji normalnych warunków pracy. Zauważono, że tendencja do sczepiania styków, dla wybranych materiałów stykowych, jest zależna od fazy, w której wykonuje się załączenie obwodu.
Źródło:
Eksploatacja i Niezawodność; 2019, 21, 2; 237-245
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Analysis of thermal cycles and phase transformations during multi-pass ARC weld surfacing of steel casts taking into account heat of the weld
Autorzy:
Winczek, J.
Gucwa, M.
Makles, K.
Powiązania:
https://bibliotekanauki.pl/articles/122834.pdf
Data publikacji:
2018
Wydawca:
Politechnika Częstochowska. Wydawnictwo Politechniki Częstochowskiej
Tematy:
surface treatment
temperature field
phase transformations
welding
surfacing
obróbka powierzchniowa
przemiany fazowe
pole temperatury
spawanie
napawanie
Opis:
In this work, a model of phase transformations during multipass weld surfaced steel casts is presented. In the temperature field calculation algorithm, the influence of the heat of overlaying beads and a self-cooling of previously overlayed beads have been taken into account. The fusion area, full and part transformation zones, by solidus, A1 and A3 and A A1 temperatures has been determined, respectively. The temperatures of the beginning and the end of the phase changes during cooling were determined on the basis of the time-temperature-transformation welding diagram. In the phase change kinetic description, the JMAK law and KM formula were used. Theoretical considerations are illustrated by example of volume share calculations of particular structural components during the weld surfaced 230-450 W steel cast. The results of computation in the graphical forms are presented: welding thermal cycle diagrams and structural share change histories at selected points, as well as temperature and the phase share distributions in cross section.
Źródło:
Journal of Applied Mathematics and Computational Mechanics; 2018, 17, 1; 89-100
2299-9965
Pojawia się w:
Journal of Applied Mathematics and Computational Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Surface Treatment Proposals for the Automotive Industry by the Example of 316L Steel
Autorzy:
Dudek, A
Lisiecka, B.
Powiązania:
https://bibliotekanauki.pl/articles/2065013.pdf
Data publikacji:
2018
Wydawca:
STE GROUP
Tematy:
surface layer remelting
alloying
316L steel
Cr3C2 coating
gas tungsten arc welding
GTAW
Opis:
Nowadays, stainless steels are very interesting and promising materials with unique properties. They are characterized high mechanical strengths, high toughness and good corrosion resistance, so that can be used in many industrial sectors. An interesting alternative to steels obtained using the conventional methods is sintered stainless steel manufactured using the powder metallurgy technology. AISI 316L stainless steel is one of the best-known and widely used austenitic stainless steel. Modification of surface properties of stainless steels, in particular by applying the Cr3C2 coating is becoming more and more popular. The technique of atmospheric plasma spraying (APS) was used to deposit Cr3C2 - NiAl powder on stainless steel surface. In this study presents arc surface remelting of two types of stainless steel was used by GTAW method in order to improve function and usability these materials. The results of optical microscope metallographic, hardness and scratch test are presented. The main assumption for this study was to analyze the microstructure and hardness after remelting and alloying the surface of 316L steel (using GTAW method) with current intensity 50 A.
Źródło:
Multidisciplinary Aspects of Production Engineering; 2018, 1, 1; 369--376
2545-2827
Pojawia się w:
Multidisciplinary Aspects of Production Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Factors Influencing Cavitation Erosion of NiCrSiB Hardfacings Deposited by Oxy-Acetylene Powder Welding on Grey Cast Iron
Autorzy:
Szala, Mirosław
Walczak, Mariusz
Hejwowski, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/2023792.pdf
Data publikacji:
2021
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
hardness
stainless steel
cavitation erosion
cast iron
surface engineering
powder welding
surface roughness
hardfacing
twardość
stal nierdzewna
erozja kawitacyjna
żeliwo
inżynieria powierzchni
spawanie proszkowe
chropowatość powierzchni
utwardzanie
Opis:
The work presents the results of a study on cavitation erosion (CE) resistance of two NiCrSiB self-fluxing powders deposited by oxy-acetylene powder welding on cast iron substrate grade EN-GJL-200. The mean hardness of deposits A-NiCrSiB, C-NiCrSiB is equal to 908 HV, 399 HV and exceeds those of EN-GJL-200 and X5CrNi18-10 reference specimens 197 HV and 209 HV, respectively. To study CE, the vibratory apparatus has been used and tests were conducted according to the ASTM G32 standard. Cavitation eroded surfaces were examined using a profilometer, optical and scanning electron microscopy. The research indicated that the CE resistance, expressed by the cumulative mass loss decreased in the following order C-NiCrSiB > A-NiCrSiB > X5CrNi18-10 > EN-GJL-200. Therefore, hardfacings were characterised by lower cumulative mass loss, in turn, higher CE resistance than the reference sample and therefore they may be applied as layers to increase resistance to cavitation of cast iron machine components. Results indicate that in the case of multiphase materials, hardness cannot be the main indicator for CE damage prediction while it strongly depends on the initial material microstructure. To qualitatively estimate the cavitation erosion damage (CEd) of NiCrSiB self-fluxing alloys at a specific test time, the following factors should be considered: material microstructure, physical and mechanical properties as well as surface morphology and material loss both estimated at specific exposure time. A general formula for the CEd prediction of NiCrSiB deposits was proposed.
Źródło:
Advances in Science and Technology. Research Journal; 2021, 15, 4; 376-386
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of process parameters of friction stir welded AA 5083-O aluminum alloy using Response Surface Methodology
Autorzy:
Jannet, S.
Mathews, P. K.
Raja, R.
Powiązania:
https://bibliotekanauki.pl/articles/202208.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
friction stir welding
optimization
Response Surface Analysis
Analysis of Variance
tensile strength
spawanie
tarcie
optymalizacja
RSA
wytrzymałość na rozciąganie
Opis:
A methodology was exhibited to create the experimental model for assessing the Ultimate Tensile Strength of AA 5083-O aluminum compound which is broadly utilized as a part of boat building industry by Friction Stir Welding (FSW). FSW process parameters, such as: tool rotational speed, welding speed, and axial force were optimized for better results. FSW was completed considering three-component 3-level Box Behnekn Design. Response surface Methodology (RSM) was implemented to obtain the relationship between the FSW process parameters and ultimate Tensile Strength. Analysis of Variance (ANOVA) procedure was utilized to check the aptness of the created model. The FSW process parameters were additionally streamlined utilizing Response Surface Methodology (RSM) to augment tensile strength. The joint welded at a rotational speed of 1100 rpm, a welding speed of 75 mm/min and a pivotal energy of 2.5 t displays higher tensile strength compared with different joints in comparison with other joints.
Źródło:
Bulletin of the Polish Academy of Sciences. Technical Sciences; 2015, 63, 4; 851-855
0239-7528
Pojawia się w:
Bulletin of the Polish Academy of Sciences. Technical Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
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