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Wyświetlanie 1-15 z 17
Tytuł:
Assessing visible radiation threat at soldering work stations
Autorzy:
Pawlak, A.
Powiązania:
https://bibliotekanauki.pl/articles/360395.pdf
Data publikacji:
2013
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
blue light hazard
electrical welding
gas welding
occupational risk
Opis:
The article discusses criteria for the assessment of exposure to visible radiation (blue light), methods of measurement of radiation exposure and hazards during welding. Then, the author presents the results of measurements of exposure to visible radiation in the electrical and gas welding. Based on the results of these measurements the occupational risk for the studied positions has been determined.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 35 (107); 118-124
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of GTAW Process Parameters of Dissimilar Al-Mg Alloys for Enhanced Joint Strength - Taguchi Approach
Autorzy:
Antony Prabu, D.
Jayakumar, K.S.
Madhavan Pillai, Elangovan
Kumaresan, G.
Powiązania:
https://bibliotekanauki.pl/articles/27765105.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czasopisma i Monografie PAN
Tematy:
AA5052-H32
AA5083-H111
mechanical properties
microstructures
optimization
tungsten inert gas welding
Opis:
The Tungsten Inert Gas (TIG) welding processes one of the prevalent methods used for welding aluminum alloys. TIG welding is most commonly used due to its superiority in welding less dense materials. The most prevalent issues encountered with TIG welding aluminium alloys are porosity creation and cracking due to solidification, both of which result in lower mechanical properties. Because of the metal’s susceptibility to heat input, this occurs. The current work is the result of a desire to improve the mechanical properties of dissimilar aluminium metals: AA5052-H32 & AA5083-H111. The process parameters of TIG welding are optimized towards eliminating the previously discussed failure scenarios. Various optimization techniques exist towards obtaining optimizing processes such as Response Surface Methodology (RSM), Genetic Algorithm (GA), Artificial Neutral Network (ANN), Flower pollination algorithm, Taguchi method etc, The Taguchi method was chosen for the optimization of process parameters due to its inherent nature of solving problems of singular variance. The optimal parameters combination was determined i.e. welding current at 170 A, filler rod diameter 2.4 mm and Gas flow rate of 11 lpm. The optimized input parameter was used to TIG weld the confirmation specimen which are further investigated for mechanical and metallurgical characterizations. The parameters were optimized and the results indicate that the input current was found to be the most contributing towards improving mechanical properties over all the process parameters.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 2; 599--606
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The role of shielding gas on mechanical, metallurgical and corrosion properties of corten steel welded joints of Railway Coaches using GMAW
Autorzy:
John, B.
Paulraj, S.
Mathew, J.
Powiązania:
https://bibliotekanauki.pl/articles/103206.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
gas metal arc welding
shielding gas
corrosion
weld microstructure
corten steel
Opis:
This analysis lays emphasis on finding a suitable combination of shielding gas for welding underframe members such as sole bar of Railway Coaches made of corten steel; for improved mechanical, metallurgical and corrosion properties of welds using copper coated solid MIG/MAG welding filler wire size 1.2 mm conforming to AWS/SFA 5.18 ER 70 S in Semi-automatic GMAW process. Solid filler wire is preferred by welders due to less fumes, practically no slag and easy manipulation of welding torch with smooth wire flow during corrosion repair attention, when compared to Flux cored wire. Three joints using Gas metal arc welding (GMAW) with shielding gases viz., Pure CO2, (80% Ar – 20% CO2 ) and (90% Ar – 10% CO2 ) were made from test pieces cut from Sole bar material of Railway Coach. Study of Mechanical properties such as tensile strength, hardness and toughness revealed that welded joint made using shielding gas (80% Ar – 20% CO2 ) has better Mechanical properties compared to the other two shielding gases and comparable to that of Parent metal. Type of Shielding gas used has influence on the chemical composition and macro & micro structures. The Tafel extrapolation study of freshly ground samples in 3.5% NaCl solution revealed that the welded joint made using shielding gas (80% Ar – 20% CO2 ) has also better corrosion resistance which is comparable to the Parent metal as well as similar commercial steels.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 32; 156-168
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Welding and Corrosion Behavior of AISI H13 Welds: The Effect of Filler Metal on the Microstructural Evolutions
Autorzy:
Varmaziar, Sadegh
Mostaan, Hossein
Rafiei, Mahdi
Yeganeh, Mahdi
Powiązania:
https://bibliotekanauki.pl/articles/2049365.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
AISI H13 tool steel
gas tungsten arc welding
filler metal
corrosion
microstructure
Opis:
Welding of AISI H13 tool steel which is mainly used in mold making is difficult due to the some alloying elements and it high hardenability. The effect filler metal composition on the microstructural changes, phase evolutions, and hardness during gas tungsten arc welding of AISI H13 hot work tool steel was investigated. Corrosion resistance of each weld was studied. For this purpose, four filler metals i.e. ER 312, ER NiCrMo-3, ER 80S, and 18Ni maraging steel were supplied. Potentiodynamic polarization test and electrochemical impedance spectroscopy (EIS) were used to study the corrosion behavior of weldments. It was found the ER 80S weld showed the highest hardness owing to fully martensitic microstructure. The hardness in ER 312 and ER NiCrMo3 weld metals was noticeably lower than that of the other weld metals in which the microstructures mainly consisted of austenite phase. The results showed that the corrosion rate of ER 312 weld metal was lower than that other weld metals which is due to the high chromium content in this weld metal. The corrosion rate of ER NiCrMo-3 was lower than that of 18Ni maraging weld. The obtained results from EIS tests confirm the findings of potentiodynamic polarization tests.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 3; 839-846
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Transient finite element simulation and microstructure evolution of AA2219 weld joint using gas tungsten arc welding process
Autorzy:
Arunkumar, S.
Shrikrishna, A. K.
Paulraj, S.
Devakumaran, K.
Kumar, S. R.
Powiązania:
https://bibliotekanauki.pl/articles/101882.pdf
Data publikacji:
2016
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
AA2219 aluminium alloy
gas tungsten arc welding
finite element simulation
metallurgical characterization
Opis:
In this study we focus on finite element simulation of gas tungsten arc welding (GTAW) of AA2219 aluminum alloy and the behavioral of the microstructure before and after weld. The simulations were performed using commercial COMSOL Multiphysics software. The thermal history of the weld region was studied by initially developed mathematical model. A sweep type meshing was used and transient analysis was performed for one welding cycle. The highest temperature noted was 3568 °C during welding. The welding operation was performed on 200×100×25 mm plates. Through metallurgical characterization, it was observed that a fair copper rich cellular (CRC) network existed in the weld region. A small amount of intermetallic compounds like Al2Cu is observed through the XRD pattern.
Źródło:
Advances in Science and Technology. Research Journal; 2016, 10, 31; 64-73
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigating the thermal and structural responses in hard-facing application with the GTAW process
Autorzy:
Savaş, Atilla
Powiązania:
https://bibliotekanauki.pl/articles/1839673.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
hard-facing
moving heat source
two-way coupling
gas tungsten arc welding (GTAW)
FEM
Opis:
The gas tungsten arc welding (GTAW) process is an excellent way of performing quality hard- -facing applications. The residual stresses and distortions are encountered in hard-facing. There are several methods to decrease residual stresses. Changing the welding pattern, changing thickness and preheating can be mentioned for this purpose. In this work, the influence of the welding pattern, plate thickness and preheating was investigated. The temperature distribution with the same welding conditions was used for validation of the numerical model. The total deformation in a 2mm plate was 15 times higher than in a 6mm plate with the same welding conditions.
Źródło:
Journal of Theoretical and Applied Mechanics; 2021, 59, 3; 343-353
1429-2955
Pojawia się w:
Journal of Theoretical and Applied 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:
Partially Melted Zone in Mg-Al Type Alloy After Gas-tungsten Arc Welding
Autorzy:
Braszczyńska-Malik, K. N.
Przełożyńska, E.
Mróz, M.
Powiązania:
https://bibliotekanauki.pl/articles/381760.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Mg-Al-Zn alloy
gas tungsten arc welding
partially melted zone
stop Mg-Al-Zn
spawanie łukowe
strefa przetopienia
Opis:
The gas-tungsten arc (GTA) welding behaviors of the commercial AZ91 magnesium alloy were examined in terms of microstructure characteristics. This study focused on the effects of the GTAW process parameters (like welding current, welding speed and method of additional cooling of the welded samples) on the size of the fusion zone (FZ) and partially melted zone (PMZ). The PMZ morphology of the eutectic regions changed from less to more divorced in the direction from the FZ to the base metal. The largest PMZ was obtained at a low welding speed (3.33 mm/s) and without additional water cooling of the samples.
Źródło:
Archives of Foundry Engineering; 2013, 13, 2 spec.; 18-21
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Groove shape on the Mechanical Properties of Welded Commercial Steel
Autorzy:
Elfallah, Saleh
Powiązania:
https://bibliotekanauki.pl/articles/27323132.pdf
Data publikacji:
2023
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
spawanie w osłonach gazowych
łuk wolframowy
stal komercyjna
wytrzymałość na rozciąganie
twardość
projekt Taguchi
gas tungsten arc welding
commercial steel
tensile strength
hardness
Taguchi design
Opis:
Manufacturers always seek for quality and effective welding to stay competitive in the market. There is a continuous demand for a quick and efficient manufacturing set ups for new products. GMAW is among the welding processes that is wieldy used in the industry. Welding factors such as welding voltage, welding current, gas flow rate, filler wire size and welding speed play a significant role in determining the welding quality. Taguchi design uses optimization technique for the process of experimentation as an effort to improve productivity and enhance product quality. This study discusses the welding of commercial steel welded using GMAW. The welding was controlled by welding current, welding speed and groove shape to test their influence on the welding strength, tensile strength and hardness. X groove shape welding has obtained lower tensile strength and hardness than V groove shape as did higher welding current and lower welding speed. The results concluded that welding current welding had the highest influence on tensile strength and hardness of the welding, followed by groove shape, while the welding speed had the minimum influence. The optimized combination of welding factors is 170 A, V groove shape and 150 mm/min.
Źródło:
Welding Technology Review; 2023, 95; 49--56
0033-2364
2449-7959
Pojawia się w:
Welding Technology Review
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structure of MMCs with SiC Particles after Gas-tungsten Arc Welding
Autorzy:
Przełożyńska, E.
Braszczyńska-Malik, K. N.
Mróz, M.
Powiązania:
https://bibliotekanauki.pl/articles/379546.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
magnesium matrix composite
gas tungsten arc welding
Mg-Al-Mn alloy
SiC particle
microstructure
kompozyt magnezowy
spawanie łukowe
stop Mg-Al-Mn
cząstka SiC
mikrostruktura
Opis:
The gas-tungsten arc (GTA) welding behaviors of a magnesium matrix composite reinforced with SiC particles were examined in terms of microstructure characteristics and process efficiencies. This study focused on the effects of the GTAW process parameters (like welding current in the range of 100/200 A) on the size of the fusion zone (FZ). The analyses revealed the strong influence of the GTA welding process on the width and depth of the fusion zone and also on the refinement of the microstructure in the fusion zone. Additionally, the results of dendrite arm size (DAS) measurements were presented.
Źródło:
Archives of Foundry Engineering; 2015, 15, 4; 65-68
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Shielding Gas Composition on Geometry and Austenite Formation in Low Power Pulsed Nd:YAG Laser Welded 2205 Duplex Stainless Steel
Autorzy:
Gozarganji, Hajibaba, E.
Farnia, A.
Ebrahimnia, M.
Powiązania:
https://bibliotekanauki.pl/articles/2049428.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
low power pulsed Nd:YAG laser welding
duplex stainless steel
shielding gas
nitrogen
austenite formation
Opis:
This paper presents an investigation into effect of nitrogen content of shielding gas mixture on weld geometry, microstructure and hardness of pulsed laser welded 2205 duplex stainless steel. Full penetration autogenous welding was performed on 2 mm thick plates using a low power pulsed Nd: YAG laser. light and scanning electron microscopy were used to study the resulting microstructures. It is observed that 2 mm full penetrated joint decreases to 1.8 mm by dominating nitrogen in argon-nitrogen mixture. Different morphologies of austenite phase as well as an increase of 8% of its content can be observed in pure nitrogen shielded welds. Average weld grain size in sample which is welded in nitrogen atmosphere stands at approximately 41 μm which is smallerthan that of argon atmosphere which is about 51 μm. Micro-hardness test reveals that hardness values increase from 280 HV in base metal to 307 HV in weld center line and the shielding gas mixture does not significantly influence the weld hardness.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 1; 187-195
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Welding of 690 QL steel for the construction of vehicles and antenna elements
Autorzy:
Węgrzyn, Tomasz
Szczucka-Lasota, Bożena
Döring, Adam
Powiązania:
https://bibliotekanauki.pl/articles/27313608.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
welding
S690 QL
automotive
antenna
shielding gas mixture
spawanie
motoryzacja
antena
mieszanka gazów osłonowych
Opis:
Purpose: The novelty and the aim of the article is to check the possibility of welding high 9 strength steels with a mixture containing 7000 ppm of nitrogen. Design/methodology/approach: A new welding material and method have been developed in order to obtain a high-quality joint for automotive industry and for antenna holders and towers. The properties of the joint were checked by NDT (Non Destructive test) tests and the strength and fatigue were tested. Findings: Relations between process parameters and the quality of welds. Research limitations/implications: In the future, it can be suggested to investigate the effect of micro addition of nitrogen in gaseous shielding mixtures of the MIG/MAG welding process. Practical implications: The proposed innovation will not cause problems in the production process. Only the innovate shielding gas with micro additives will be modified without affecting the technological process, management and economic aspects. Social implications: Modifying the welding method will not affect the environment and production management methods. Originality/value: It is to propose a new solution with its scientific justification. The article is addressed to manufacturers of high-strength steel for automotive industry and to manufacturers of antenna components and instrumentation.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2022, 160; 631--638
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Gas Mixtures for Welding with Micro-Jet Cooling
Gazowe mieszanki do spawania z chłodzeniem mikro-jetowym
Autorzy:
Węgrzyn, T.
Powiązania:
https://bibliotekanauki.pl/articles/352813.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
welding
micro-jet cooling
weld
metallographic structure
gas mixtures
spawanie
chłodzenie mikro-jet
spoina
struktura metalograficzna
mieszanka gazowa
Opis:
Welding with micro-jet cooling after was tested only for MIG and MAG processes. For micro-jet gases was tested only argon, helium and nitrogen. A paper presents a piece of information about gas mixtures for micro-jet cooling after in welding. There are put down information about gas mixtures that could be chosen both for MAG welding and for micro-jet process. There were given main information about influence of various micro-jet gas mixtures on metallographic structure of steel welds. Mechanical properties of weld was presented in terms of various gas mixtures selection for micro-jet cooling.
Chłodzenie mikro-jetowe było stosowane tylko w spawalniczym procesie MIG i MAG, gdzie gazem osłonowym były tylko argon, hel i azot. W artykule przedstawiono informacje na temat wykorzystania mieszanek gazowych do chłodzenia mikro-jetowego. Podano informacje zarówno dla gazów, które mogą być wybrane dla spawania MAG i dla mikro-jetowego procesu. Uzyskano informacje o wpływie doboru mieszanek gazowych do chłodzenia mikro-jetowego na strukturę metalograficzną stalowych spoin. Własności mechaniczne złącza podano dla złączy wykonanych różnymi mieszankami gazowymi.
Źródło:
Archives of Metallurgy and Materials; 2015, 60, 1; 107-110
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Microstructure and friction parameters of the surface layer of sintered stainless steels
Mikrostruktura i parametry tarcia warstw wierzchnich spiekanych stali nierdzewnych
Autorzy:
Lisiecka, Barbara
Dudek, Agata
Powiązania:
https://bibliotekanauki.pl/articles/190456.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
surface layer alloying
Cr3C2 coating
surface roughness
coefficient of friction (COF)
sintered stainless steel (SSS)
gas tungsten arc welding (GTAW)
stopowanie warstwy wierzchniej
powłoka Cr3C2
chropowatość powierzchni
współczynnik tarcia
spiekana stal nierdzewna (SSS)
spawanie łukowe (GTAW)
Opis:
Sintered stainless steel (SSS) is manufactured using the powder metallurgy technology (PM). SSSs are characterized by a two–phase structure which can be obtained by mixing different proportions of the main structural components (i.e. austenite and ferrite). Taking into account the improvement of functional properties of SSSs, a number of surface modifications have been proposed. This study proposes a method to improve functional properties by formation of chromium carbide coating and alloying the surface by the gas tungsten arc welding (GTAW) process. The results of light optical microscopy and scanning electron microscopy (SEM/EDX), roughness parameters, hardness, and the coefficient of friction are presented.
Spiekana stal nierdzewna produkowana jest przy użyciu technologii metalurgii proszków (PM). Metoda ta opiera się na procesach formowania i spiekania oraz pozwala na wytwarzanie elementów o złożonych kształtach. SSS charakteryzują się dwufazową strukturą, którą można uzyskać poprzez mieszanie w dowolnej proporcji głównych składników strukturalnych (tj. austenit i ferryt). Biorąc pod uwagę poprawę właściwości funkcjonalnych spieków, zaproponowano szereg modyfikacji powierzchni. W niniejszym opracowaniu zaproponowano poprawę tych właściwości poprzez wytworzenie powłoki z węglika chromu i stopowanie powierzchni za pomocą spawalniczej metody łukowej GTAW. Przedstawiono wyniki mikroskopii świetlnej i skaningowej mikroskopii elektronowej (SEM/EDX), parametry chropowatości, twardość oraz współczynnik tarcia. Głównym założeniem tego badania była analiza mikrostruktury i współczynnika tarcia warstw powierzchniowych spieków o różnych proporcjach proszków w wyniku procesu stopowania. Zastosowanie powłok z węglika chromu i stopowanie powierzchni poprawia właściwości tribologiczne spieków (tj. współczynnik tarcia).
Źródło:
Tribologia; 2019, 286, 4; 41-51
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
New concept of gas mixtures for welding high-strength steel S960 MC
Autorzy:
Węgrzyn, Tomasz
Szczucka-Lasota, Bożena
Kurowska-Wilczyńska, Kinga
Doring, Adam
Powiązania:
https://bibliotekanauki.pl/articles/27313712.pdf
Data publikacji:
2022
Wydawca:
Politechnika Śląska. Wydawnictwo Politechniki Śląskiej
Tematy:
welding process
S960MC steel
means of transport
shielding gas mixture
proces spawania
Stal S960MC
środki transportu
mieszanka gazów osłonowych
Opis:
Purpose: Checking the quality of a joint made with a newly developed method. Design/methodology/approach: A new welding method has been developed in order to obtain a high-quality joint. The properties of the joint were checked by NDT (Non Destructive test) tests and the strength and fatigue strength were tested. Findings: Now, adding to the shielding gas mixture can improve the quality and properties of the weld. Research limitations/implications: In the future, it can be suggested to investigate the effect of nitrogen in other gaseous shielding mixtures of the MAG welding process. Practical implications: The proposed innovation will not cause problems in the production process. Only the shielding gas will be modified without affecting the technological process, management and economic aspects. Social implications: Modifying the welding method will not affect the environment and production management methods. Originality/value: What is new is to propose a new solution with its scientific justification. The article is addressed to manufacturers of structures made of HSS and AHSS steels.
Źródło:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska; 2022, 157; 623--629
1641-3466
Pojawia się w:
Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
Dostawca treści:
Biblioteka Nauki
Artykuł
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