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Wyszukujesz frazę "silicon steel" wg kryterium: Temat


Wyświetlanie 1-9 z 9
Tytuł:
Effect of Sulfur and Acid Soluble Aluminum Content on Precipitate and Microstructure of Grain-Oriented Silicon Steel
Autorzy:
Zhou, B.
Zhu, C.
Li, G.
Luo, Z.
Gao, Y.
Bao, S.
Schneider, J.
Powiązania:
https://bibliotekanauki.pl/articles/354451.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
grain oriented silicon steel
sulfur
acid soluble aluminum
precipitate
microstructure
texture
Opis:
The combined effect of sulfur (S) and acid soluble aluminum (Als ) content on precipitates and microstructures in grain-oriented silicon steel were investigated. The results show that there are dominant AlN and a little amount of MnS-AlN composite in annealed hot-rolled band, and the amount of precipitates increases distinctly with increasing Als content, while S content plays a negligible role. The inhibitors that precipitate during hot band annealing can restrain the grain growth during hot band annealing and primary annealing, and the smaller grains of annealed hot-rolled band can contribute to the formation of {111} <112> texture during primary annealing. Lower S content is conducive to the formation of {111} <112> texture during primary annealing by promoting the formation of Goss texture during hot rolling.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 4; 1701-1708
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Numerical simulation of shear slitting process of grain oriented silicon steel using sph method
Autorzy:
Bohdal, Ł.
Tandecka, K.
Kałduński, P.
Powiązania:
https://bibliotekanauki.pl/articles/387439.pdf
Data publikacji:
2017
Wydawca:
Politechnika Białostocka. Oficyna Wydawnicza Politechniki Białostockiej
Tematy:
shear slitting
smoothed particle hydrodynamics
grain oriented silicon steel
digital image correlation
Opis:
Mechanical cutting allows separating of sheet material at low cost and therefore remains the most popular way to produce laminations for electrical machines and transformers. However, recent investigations revealed the deteriorating effect of cutting on the magnetic properties of the material close to the cut edge. The deformations generate elastic stresses in zones adjacent to the area of plastically deformed and strongly affect the magnetic properties. The knowledge about residual stresses is necessary in designing the process. This paper presents the new apprach of modeling residual stresses induced in shear slitting of grain oriented electrical steel using mesh-free method. The applications of SPH (Smoothed Particle Hydrodynamics) methodology to the simulation and analysis of 3D shear slitting process is presented. In experimental studies, an advanced vision-based technology based on digital image correlation (DIC) for monitoring the cutting process is used.
Źródło:
Acta Mechanica et Automatica; 2017, 11, 4; 333-338
1898-4088
2300-5319
Pojawia się w:
Acta Mechanica et Automatica
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The tool surface wear during the silicon steel sheets blanking process
Zużycie powierzchni narzędzi podczas eksploatacji w procesie wykrawania blachy krzemowej
Autorzy:
Mucha, J.
Jaworski, J.
Powiązania:
https://bibliotekanauki.pl/articles/1365768.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Polskie Naukowo-Techniczne Towarzystwo Eksploatacyjne PAN
Tematy:
tool wear
high-speed steel
blanking process
silicon steel sheet
zużycie narzędzi
stale szybkotnące
wykrawanie
blachy krzemowe
Opis:
The surface wear mechanism of punches for the silicon sheets blanking was presented. In the studies the differences in the wear of high-speed tool (produced by casting and sintering), where observed. The influence of additional TiN coating on the punches flank degradation intensity was obtained. The strengthening zone changes of the sheared blank material close to cutting line were observed. The punch wear influence on the M530-50A silicon sheet material hardness changes was described.
W niniejszym artykule przedstawiono opis mechanizmu zużycia powierzchni roboczych stempli wykrawających elementy z blachy krzemowej. Badania wykazały różnice w zużyciu narzędzi dla stali szybkotnącej w przypadku dwóch procesów jej wytwarzania (odlewania i spiekania). Wykazano wpływ dodatkowej powłoki z TiN na intensywność degradacji powierzchni przyłożenia stempli wykrawających. Obserwacji poddano zmiany obszaru umocnienia materiału wykrawanego w pobliżu linii cięcia. Określono wpływ zużycia stempli na zasięg zmian twardości materiału blachy krzemowej M530-50A.
Źródło:
Eksploatacja i Niezawodność; 2016, 18, 3; 332-342
1507-2711
Pojawia się w:
Eksploatacja i Niezawodność
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Modeling of the formation of AlN precipitates during solidification of steel
Autorzy:
Kalisz, D.
Rzadkosz, S.
Powiązania:
https://bibliotekanauki.pl/articles/381716.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
computer simulation
aluminum nitride
solidification of steel
continuous casting of steel
silicon steel
symulacja komputerowa
azotek glinu
krzepnięcie stali
ciągłe odlewanie stali
stal krzemowa
Opis:
The study was carried out computer simulations of the formation process of AlN precipitates in the solidification of steel. The chemical composition of steel and non-metallic inclusions formed was determined using the commercial software FactSage. Calculated amount of precipitates formed during cooling of steel between the liquidus and solidus temperatures under conditions of thermodynamic equilibrium. In parallel, the computations were performed using your own computer program. It was found that aluminum nitride is formed at the final stage of solidification, and the condition of its formation is low oxygen content in steel.
Źródło:
Archives of Foundry Engineering; 2013, 13, 1; 63-68
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Spark Plasma Sintering of Low Alloy Steel Modified with Silicon Carbide
Autorzy:
Hebda, M.
Dębecka, H.
Miernik, K.
Kazior, J.
Powiązania:
https://bibliotekanauki.pl/articles/352293.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
SPS
silicon carbide
low-alloy steel
mechanical alloying
corrosion resistance
Opis:
The influence of adding different amounts of silicon carbide on the properties (density, transverse rupture strength, microhardness and corrosion resistance) and microstructure of low alloy steel was investigated. Samples were prepared by mechanical alloying (MA) process and sintered by spark plasma sintering (SPS) technique. After the SPS process, half of each of obtained samples was heat-treated in a vacuum furnace. The results show that the high-density materials have been achieved. Homogeneous and fine microstructure was obtained. The heat treatment that followed the SPS process resulted in an increase in the mechanical and plastic properties of samples with the addition 1wt. % of silicon carbide. The investigated compositions containing 1 wt.% of SiC had better corrosion resistance than samples with 3 wt.% of silicon carbide addition. Moreover, corrosion resistance of the samples with 1 wt.% of SiC can further be improved by applying heat treatment.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 2A; 503-508
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Densification and Mechanical Properties of 439L Steel Composites Blended with Fifteen Micron-Size Silicon Carbide Particles
Autorzy:
Lee, Sang Woo
Shin, Hyunho
Rhee, Kyong-Yop
Powiązania:
https://bibliotekanauki.pl/articles/351985.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
439L steel
silicon carbide
composites
densification
liquid phase sintering
Opis:
439L stainless steel composites blended with fifteen micron SiC particles were prepared by uniaxial pressing of raw powders at 100 MPa and conventional sintering at 1350°C for 2 h. Based on the results of X-ray diffraction analysis, dissolution of SiC particles were apparent. The 5 vol% SiC specimen demonstrated maximal densification (91.5%) among prepared specimens (0-10 vol% SiC); the relative density was higher than the specimens in the literature (80-84%) prepared by a similar process but at a higher forming pressure (700 MPa). The stress-strain curve and yield strength were also maximal at the 5 vol% of SiC, indicating that densification is the most important parameter determining the mechanical property. The added SiC particles in this study did not serve as the reinforcement phase for the 439L steel matrix but as a liquid-phase-sintering agent for facilitating densification, which eventually improved the mechanical property of the sintered product.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 3; 883-888
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Fatigue Properties of Nodular Cast Iron at Low Frequency Cyclic Loading
Autorzy:
Vaško, A.
Powiązania:
https://bibliotekanauki.pl/articles/353103.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
fatigue test
low frequency cyclic loading
nodular cast iron
steel scrap
silicon carbide
Opis:
Three melts of ferrite-pearlitic nodular cast iron with different charge composition were used for fatigue tests. Wöhler fatigue curves and fatigue strength were obtained, and microstructure and fracture surfaces were investigated. The aim of the paper is to determine the influence of charge composition on microstructure, mechanical and fatigue properties of synthetic nodular cast irons and their micromechanisms of failure. Fatigue tests were realised at low frequency sinusoidal cyclic push-pull loading (stress ratio R = −1) at ambient temperature (T = 20 ±5°C). They were carried out with using the fatigue experimental machine Zwick/Roell Amsler 150HFP 5100 at frequency f ≈ 120 Hz. The results of fatigue tests at low frequency cyclic loading are compared with fatigue properties at high frequency cyclic loadin.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 4; 2205-2210
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abrasion Resistance of S235, S355, C45, AISI 304 and Hardox 500 Steels with Usage of Garnet, Corundum and Carborundum Abrasives
Autorzy:
Szala, Mirosław
Szafran, Michał
Macek, Wojciech
Marchenko, Stanislav
Hejwowski, Tadeusz
Powiązania:
https://bibliotekanauki.pl/articles/103045.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
abrasion
wear resistance
dry sand-rubber wheel test
garnet
aluminum oxide
silicon carbide
steel
hardness
microstructure
odporność na ścieranie
test koła suchy piasek-guma
granat
tlenek glinu
węglik krzemu
stal
twardość
mikrostruktura
Opis:
The steel presents a wide field of application. The abrasive wear resistance of steel relies mainly on the microstructure, hardness as well as on the abrasive material properties. Moreover, the selection of a abrasion-resistant grade of steel still seems to be a crucial and unsolved problem, especially due to the fact that the actual operating conditions can be affected by the presence of different abrasive materials. The aim of this work was to determine the effect of different abrasive grit materials i.e. garnet, corundum and carborundum on the abrasive wear result of a commonly used in industry practice steels i.e. S235, S355, C45, AISI 304 and Hardox 500. The microstructure of the steel was investigated using light optical microscopy. Moreover, hardness was measured with Vickers hardness tester. Additionally, the size and morphology of the abrasive materials were characterized. The abrasion tests were conducted with the usage of T-07 tribotester (dry sand rubber wheel). The results demonstrate that the hardness and structure of steels and hardness of abrasive grids influenced the wear results. The abrasive wear behavior of steels was dominated by microscratching and microcutting wear mechanisms. The highest mass loss was obtained for garnet, corundum, and carborundum, respectively. The usage of various abrasives results in different abrasion resistance for each tested steel grade. The AISI 304 austenitic stainless steel presents an outstanding abrasive wear resistance while usage of corundum and Hardox 500 while using a garnet as abrasive material. The C45 carbon steel was less resistant than AISI 304 for all three examined abrasives. The lowest resistance to wear in garnet and carborundum was obtained for the S235JR and S355J2 ferritic-perlitic carbon steels and in corundum for Hardox 500 which has tempered martensitic structure.
Źródło:
Advances in Science and Technology. Research Journal; 2019, 13, 4; 151-161
2299-8624
Pojawia się w:
Advances in Science and Technology. Research Journal
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Role of materials design in maintenance engineering in the context of industry 4.0 idea
Autorzy:
Dobrzański, L. A.
Powiązania:
https://bibliotekanauki.pl/articles/368329.pdf
Data publikacji:
2019
Wydawca:
Stowarzyszenie Komputerowej Nauki o Materiałach i Inżynierii Powierzchni w Gliwicach
Tematy:
maintenance
4.0 stage of economy
industry development
materials development
designing material conservation and manufacturing 3MD
selective laser sintering
implant-scaffold
laser texturization
multicrystalline silicon cells
cracking counteraction
austenitic steel
TWIP steels
TRIP steel
wear-resistant
CVD coatings
PVD coatings
cutting tool materials
Al alloy matrix nanocomposites
carbon nanotubes
graphene
dye synthesised solar cells
ALD coatings
dentistry
photovoltaics
konserwacja
przemysł 4.0
rozwój przemysłu
rozwój materiałów
selektywne spiekanie laserowe
rusztowanie implantowe
teksturyzacja
ogniwa krzemowe
pękanie stali
stal austenityczna
stal TWIP
stal TRIP
odporność na ścieranie
powłoki CVD
powłoki PVD
narzędzia skrawające
nanokompozyty
osnowa aluminiowa
nanorurki węglowe
grafen
ogniwo słoneczne
powłoki ALD
stomatologia
fotowoltaika
Opis:
Purpose: The paper presents the issues of designing the maintenance of materials and products in accordance with the idea of Industry 4.0. The author's views on the need for augmentation of the Industry 4.0 model were also presented, as well as the author's original concept that hybrid activities in predictive maintenance and condition-based maintenance should be preceded by designing material, maintenance & manufacturing 3MD at the stage of the product's material designing and technological designing. The 3MD approach significantly reduces the frequency of assumed actions, procedures and resources necessary to remain the condition of this product for the longest possible time, enabling it to perform the designed working functions. Examples of own advanced research on several selected, newly developed materials, used in very different areas of application, confirmed the validity of the scientific hypothesis and the relationship between the studied phenomena and structural effects and the working functions of products and their maintenance and indicated that material design is one of the most important elements guaranteeing progress production at the stage of Industry 4.0 of the industrial revolution. Design/methodology/approach: The author's considerations are based on an extensive literature study and the results of the author's previous study and empirical work. Each of the examples given required the use of a full set of research methods available to modern material engineering, including HRTEM high-resolution transmission electron microscopy. Findings: The most interesting intellectual achievements contained in the paper include presentations of the author's original concepts regarding the augmentation of the Industry 4.0 model, which has been distributed so far, which not only requires augmentation but is actually only one of the 4 elements of the technology platform of the extended holistic model of current industrial development, concerning cyber-IT production aided system. The author also presents his own concept for designing material, maintenance and manufacturing 3MD already at the stage of material and technological design of the product, eliminating many problems related to product maintenance, even before they are manufactured and put into exploitation. Detailed results of detailed structural researches of several selected avant-garde engineering materials and discussion of structural changes that accompanying their manufacturing and/or processing are also included. Originality/value: The originality of the paper is associated with the novelty of the approach to analysing maintenance problems of materials and products, taking into account the requirements of the contemporary stage of Industry 4.0 development. The value of the paper is mainly associated with the presentation of original issues referred to as findings, including the concept of augmentation of the Industry 4.0 model and the introduction and experimental confirmation of the idea by designing material, maintenance and manufacturing 3MD.
Źródło:
Journal of Achievements in Materials and Manufacturing Engineering; 2019, 96, 1; 12-49
1734-8412
Pojawia się w:
Journal of Achievements in Materials and Manufacturing Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-9 z 9

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