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    Wyświetlanie 1-14 z 14
    Tytuł:
    Improvement of Weldability of Hot-Dip Galvanized Steel by Anti-Galvanizing Coating with Si-Fe-Al Oxide-Based Micropowder
    Autorzy:
    So, Seong-Min
    Kim, Ki-Yeon
    Park, Il-Song
    Lee, Seok-Jae
    Yoo, Dong-Jin
    Kim, Yeon-Won
    Oh, Min-Suk
    Powiązania:
    https://bibliotekanauki.pl/articles/2203718.pdf
    Data publikacji:
    2023
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hot-dip galvanizing
    anti-galvanizing
    oxide micropowder
    weldability
    Opis:
    A Si-Fe-Al ternary oxide-based micropowder coating was used to prevent the formation of a Zn coating on steel during the hot-dip Zn galvanizing process to reduce the welding fume and defects generated during the welding of Zn-galvanized steel. The composition ratio of the oxide powder was optimized and its microstructure and weldability were evaluated. The optimized oxide coating was stable in the hot-dip galvanizing bath at 470°C and effectively inhibited the formation of Zn coating. The Zn residue could be easily removed with simple mechanical impact. The proposed coating reduced Zn fume and prevented the residual Zn from melting in the weld bead during high-temperature welding, thus reducing the number of welding defects. The results indicated that this pretreatment can simplify the manufacturing process and shorten the process time cost-effectively.
    Źródło:
    Archives of Metallurgy and Materials; 2023, 68, 1; 155--159
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The influence of hot dip galvanizing process on trip steel wire structure and properties
    Autorzy:
    Wiewiórowska, S.
    Muskalski, Z.
    Michalczyk, J.
    Powiązania:
    https://bibliotekanauki.pl/articles/356844.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    TRIP steel
    galvanizing process
    wires
    drawing process
    Opis:
    Many wire products (e.g. nets) are made from galvanized material. The hot dip galvanizing process gives the possibility of applying in a respectively thick coat of zinc (also depending on the time of staying wires in the bath) which provides the protection of the product against corrosion. In the available literature there were no research concerned with the influence of hot dip galvanizing process on the mechanical properties TRIP structure steel wires. Therefore, an experiment was carried out in laboratory conditions allowing the determination of the influence of hot dip galvanizing process parameters on the mechanical properties (tensile strength UST and yield strength YS) of TRIP steel wires as well as on the amount of retained austenite in their structure. It has been stated that the hot galvanizing process of TRIP steel wires influences, proportionally to the time of staying wires in zinc bath, on their plastic properties (the increase in yield strength YS) as well as the decrease in the amount of retained austenite in their structure. Such a phenomenon can be caused by stresses responsible for rapid heating of the wire put in the zinc bath in temperature of 450°C and by the strengthening of the materials resulting from the transformation of retained austenite.
    Źródło:
    Archives of Metallurgy and Materials; 2019, 64, 1; 129-132
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Changes In Properties of Hot-Dip Zinc Coating Resulting from Heat Treatment
    Autorzy:
    Jędrzejczyk, D.
    Szatkowska, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/351543.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hot-dip zinc galvanizing
    heat treatment
    coating hardness
    Opis:
    This paper analyses the heat treatment of the hot-dip zinc coating deposited on both cast iron and steel. The aim of research is to increase coating hardness and wear resistance without decreasing its anticorrosion properties. Hot-dip zinc coating was deposited in industrial conditions (acc. PN-EN ISO 10684) on disc shape samples and bolts M12x60. The achieved results were assessed on the basis of microscopic observation (with the use of an optical and scanning microscope), EDS (point and linear) analysis and micro-hardness measurements. It was discovered that the heat treatment of zinc coating results in an increase in hardness which is caused by the corresponding changes in microstructure.
    Źródło:
    Archives of Metallurgy and Materials; 2019, 64, 1; 201-206
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Influence of the Angle of Working Part of Die on the Zinc Coating Thickness and Mechanical Properties of Medium Carbon Steel Wires
    Autorzy:
    Suliga, M.
    Wartacz, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/352577.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    wire
    die angle
    hot dip galvanizing
    mechanical properties
    Opis:
    The paper discusses experimental studies to determine the effect of the die working portion angle on the lubrication conditions, zinc coating thickness and the mechanical properties of medium-carbon steel wires. The test material was 5.5 mm-diameter wire rod which was drawn into 2.2 mm-diameter wire in seven draws at a drawing speed of v = 10 m/s. Conventional drawing dies of a working portion angle of α = 3, 4, 5, 6, 7°, respectively, were used for the drawing process. After the drawing process, the quantity of the lubricant on the wire surface and the thickness of the zinc coating were determined in individual draws. Testing the finished 2.2 mm-diameter wires for mechanical properties, on the other hand, determined the effect of the die working portion on the yield point, tensile strength, uniform and total elongation, reduction in area, the number of twists and the number of bends.
    Źródło:
    Archives of Metallurgy and Materials; 2019, 64, 4; 1295-1299
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Shaping optimal zinc coating on the surface of high-quality ductile iron casting. Part II – Technological formula and value of diffusion coefficient
    Autorzy:
    Kopyciński, D.
    Guzik, E.
    Szczęsny, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/352224.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hot-dip galvanizing
    ductile iron
    surface roughness
    diffusion coefficient
    Opis:
    The completed research presented in the first part of the article has allowed linking the manufacturing technology of ductile iron castings with the process of hot dip galvanizing. On the basis of these data simulations were carried out to examine the behaviour of zinc diffusion coefficient D in the galvanized coating. The adopted model of zinc coating growth helped to explain the cases of excessive growth of the intermetallic phases in this type of coating. The paper analyzes covered the relationship between the roughness and phase composition of the top layer of product and the thickness and kinetics of zinc coating growth referred to individual sub-layers of the intermetallic phases.Roughness and phase composition in the surface layer of product were next related to the diffusion coefficient D examined in respective sublayers of the intermetallic phases.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 1; 391-395
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Shaping optimal zinc coating on the surface of high-quality ductile iron casting. Part I – Moulding technologies vs. zinc coating
    Autorzy:
    Szczęsny, A.
    Kopyciński, D.
    Guzik, E.
    Powiązania:
    https://bibliotekanauki.pl/articles/356585.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hot-dip galvanizing
    ductile iron
    surface roughness
    diffusion coefficient
    Opis:
    Studies have demonstrated that in the process of hot dip galvanizing the decisive influence on the mechanism of zinc coating formation and properties has the quality of the mechanically untreated (raw) surface layer of the galvanized product. The terms “casting surface layer” denote various parameters of the microstructure, including the type of metal matrix, the number of grains and the size of graphite nodules, possible presence of hard spots (the precipitates of eutectic cementite) and parameters of the surface condition. The completed research has allowed linking the manufacturing technology of ductile iron castings with the process of hot dip galvanizing.
    Źródło:
    Archives of Metallurgy and Materials; 2017, 62, 1; 385-390
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    A study on the Surface Roughness of Galvannealed Low Carbon Al-Killed and Ti-Nb Stabilized Interstitial Free Steels
    Autorzy:
    Elkoca, Sen Candan
    Ekmekci, Bulent
    Elkoca, Oktay
    Powiązania:
    https://bibliotekanauki.pl/articles/2049358.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    galvannealing
    galvannealed steel
    hot-dip galvanizing
    Fe-Zn phases
    surface roughness
    Opis:
    In this study, the surface roughness of galvannealed low carbon Al-killed and Ti-Nb stabilized interstitial free steels was investigated using the industrial galvannealing process parameters. The iron content of the coatings was also analysed to establish a relationship with the surface roughness and coating composition. The surface roughness displayed an exponential behaviour with increasing of annealing time at each annealing temperature in both steel coatings, which was in an increasing order in the galvannealed low carbon Al-killed steel coating, whereas it was a reverse order in the galvannealed Ti-Nb stabilized interstitial free steel coating. The craters were observed on the galvannealed coatings resulting in high surface roughness. Increasing the iron content of the coatings leads to a reduction in the surface roughness with δ1k phase.
    Źródło:
    Archives of Metallurgy and Materials; 2021, 66, 3; 841-857
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diversification of Intermetallic Zn Phases Growth on Steel During Hot-Dip Galvanizing
    Autorzy:
    Węgrzynkiewicz, S.
    Jędrzejczyk, D.
    Szłapa, I.
    Hajduga, M.
    Boczkal, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/352256.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hot-dip zinc galvanizing
    heat-affected zone
    softening annealing
    oxy-acetylene cutting
    Opis:
    The steel substrate formed as the result of oxy-acetylene cutting (OAB) was treated differently - using: softening annealing, grinding and electro-polishing. Investigations were focused on the influence of additional processing on the structure and corrosion resistance of the deposited zinc coating. The hot - dip Zn galvanizing process was conducted in industrial conditions. Parameters were fixed: temperature 457 °C, dipping time 150 s. The coating thickness diversification dependent on the sub-surface steel structure was analysed and compared to the previous results. The correlation between conducted treatment and coatings morphology was determined.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 2A; 515-520
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Diffusion Coefficient in the Zinc Coating Shaped on the Surface of Cast Iron and Steel Alloys
    Autorzy:
    Kopyciński, D.
    Guzik, E.
    Szczęsny, A.
    Siekaniec, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/379933.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hot-dip galvanizing
    intermetallic sublayer
    diffusion coefficient
    cynkowanie zanurzeniowe
    podwarstwa międzymetaliczna
    współczynnik dyfuzji
    Opis:
    The article presents the method to assess the diffusion coefficient D in the sub-layer of intermetallic phases formed during hot-dip galvanizing “Armco” iron and ductile cast iron EN-GJS-500-7. Hot-dip galvanizing is one of the most popular forms of long-term protection of Fe-C alloys against corrosion. The process for producing a protective layer of sufficient quality is closely related to diffusion of atoms of zinc and iron. The simulation consist in performed a hot-dip galvanizing in laboratory condition above Fe-C alloys, in the Department of Engineering of Cast Alloys and Composites. Galvanizing time ranged from 15 to 300 seconds. Then metallographic specimens were prepared, intermetallic layers were measured and diffusion coefficient (D) were calculated. It was found that the diffusion coefficient obtained during hot-dip galvanizing “Armco” iron and zinc is about two orders of magnitude less than the coefficient obtained on ductile cast iron EN-GJS-500-7.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 2; 43-46
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Kinetyka wzrostu powłoki ochronnej podczas wysoko- i niskotemperaturowego cynkowania zanurzeniowego odlewów z żeliwa sferoidalnego
    Growth kinetics of the protective coating during high- and low- temperature process of hot dip galvanizing of ductile iron castings
    Autorzy:
    Kopyciński, D.
    Guzik, E.
    Szczęsny, A.
    Siekaniec, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/380840.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    cynkowanie zanurzeniowe
    żeliwo sferoidalne
    temperatura procesu
    hot-dip galvanizing
    ductile cast iron
    process temperature
    Opis:
    W pracy przedstawiono porównanie mikrostruktury powłoki cynkowej otrzymanej na powierzchni odlewu z żeliwa sferoidalnego gatunku EN-GJS-5007 podczas zabiegu cynkowania zanurzeniowego w procesie „niskotemperaturowym” 450°C oraz „wysokotemperaturowym” 580°C. Zbadano kinetykę wzrostu powłoki cynkowej, zidentyfikowano wzrastające fazy Fe-Zn oraz występowanie wydzieleń „twardego cynku” w powłoce.
    The paper presents a comparison of the zinc coating microstructure obtained on EN-GJS-500-7 grade ductile cast iron surface during the hot dip galvanizing in the "low temperature" 450 °C and "high temperature" 580 °C. The kinetics of growth of the zinc coating was investigated. The phases of Fe-Zn and the presence of precipitates "hard zinc" in the coating have been identified.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 2 spec.; 47-50
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of the Surface Layer of Iron Casting on the Growth of Protective Coating During Hot-Dip Galvanizing
    Autorzy:
    Kopyciński, D.
    Guzik, E.
    Szczęsny, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/379701.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hot-dip galvanizing
    ductile iron
    surface roughness
    surface layer
    cynkowanie
    żeliwo sferoidalne
    chropowatość powierzchni
    Opis:
    The paper presents the results of investigations of the growth of protective coating on the surface of ductile iron casting during the hot-dip galvanizing treatment. Ductile iron of the EN-GJS-600-3 grade was melted and two moulds made by different technologies were poured to obtain castings with different surface roughness parameters. After the determination of surface roughness, the hot-dip galvanizing treatment was carried out. Based on the results of investigations, the effect of casting surface roughness on the kinetics of the zinc coating growth was evaluated. It was found that surface roughness exerts an important effect on the thickness of produced zinc coating.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 1; 25-28
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Charakterystyka powłoki cynkowej ukształtowanej na powierzchni wyrobów ze stopów Fe-C
    Characteristics of the Zinc Coating Layer Formed on a Surface of a Fe-C Alloy Products
    Autorzy:
    Szczęsny, A.
    Siekaniec, D.
    Madizhanowa, A.
    Kopyciński, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/380540.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    cynkowanie zanurzeniowe
    powłoka ochronna
    odlew staliwny
    odlew żeliwny
    hot-dip galvanizing
    protective coating
    cast steel
    iron casting
    Opis:
    W artykule zawarto wyniki badań powłoki ochronnej ukształtowanej podczas zabiegu cynkowania zanurzeniowego na powierzchni wyrobów ze stali, staliwa oraz żeliwa. Odlewy ze stali i staliwa zostały ocynkowane w warunkach przemysłowych, natomiast odlewy z żeliwa na stanowisku laboratoryjnym w Pracowni Powierzchni Odlewów Katedry Inżynierii Stopów i Kompozytów Odlewanych. W poniższej pracy oceniono jakość i morfologię uzyskanej powłoki ochronnej uzyskanej na poszczególnych wyrobach ze stopów Fe-C oraz odporność na korozję w komorze solnej na próbkach z żeliwa szarego. Na podstawie przeprowadzonych badań stwierdzono, że najcieńsza i najbardziej regularna powłoka cynkowa została ukształtowana na powierzchni stali. Na powierzchni staliwa i żeliwa powłoka miała charakter nieregularny, z wyraźnie zwiększonym udziałem fazy ζ. We wszystkich przypadkach uzyskano zwartą i ciągłą powłokę cynkową.
    The article contains the results of the protective coating formed during hot dip galvanizing treatment on the surface of steel, cast steel and cast iron. Zinc coatings are one of the best methods of protection against corrosion of alloys of iron with coal in terms of both economic and ecological aspects. Casts from steel and cast steel were galvanized in industrial conditions, while iron castings in a laboratory at the Laboratory of Surface Engineering Department Casting Alloys and Composites cast. The following study evaluated the quality and morphology of the protective coating on different products obtained from the Fe-C alloys and corrosion resistance in salt spray chamber on samples of cast iron. Based on the studies it was found that the thinnest and most regular zinc coating has been formed on the steel surface. On the surface of cast steel and cast iron coating was irregular, with clearly increased participation phase ζ In all cases obtained compact and continuous zinc coating.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 3 spec.; 157-160
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The effect of ductile cast iron matrix on zinc coating during hot dip galvanising of castings
    Autorzy:
    Kopyciński, D.
    Szczęsny, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/380458.pdf
    Data publikacji:
    2012
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    cynkowanie ogniowe
    żeliwo sferoidalne
    kinetyka wzrostu
    powłoka cynkowa
    osnowa metaliczna
    hot-dip galvanizing
    ductile iron
    growth kinetics
    zinc coating
    metallic matrix
    Opis:
    The growth kinetics of the zinc coating formed on the surface of casting made from ductile iron grade EN-GJS-500-3 was investigated. To produce homogenous metal matrix in test samples, the normalising and ferritising annealing was carried out. Studies showed a heterogeneous structure of cast iron with varying content of the phases formed. This was followed by hot dip galvanising treatment at 450 C to capture the growth kinetics of the zinc coating (the time of the treatment ranged from 60 to 600 seconds). Nonlinear estimation of the determined growth kinetics of the alloyed layer of a zinc coating was made and an equation of the zinc coating growth was derived. Based on the results of the investigations it was concluded that thickness of the zinc coating formed on the surface of casting with a 100% pearlitic matrix makes 55% of the thickness of coating formed on the surface in 100% ferritic.
    Źródło:
    Archives of Foundry Engineering; 2012, 12, 4; 101-104
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of a Substrate Surface on the (Zn) : Coating Formation
    Wpływ powierzchni podłoża na kształtowanie się powłoki (Zn)
    Autorzy:
    Węgrzynkiewicz, S.
    Jędrzejczyk, D.
    Szłapa, I.
    Hajduga, M.
    Boczkal, S.
    Powiązania:
    https://bibliotekanauki.pl/articles/352854.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    hot-dip Zn galvanizing
    heat-affected zone (HAZ)
    water jet cutting
    oxyacetylene cutting
    laser cutting
    cynkowanie ogniowe Zn
    strefa wpływu ciepła (HAZ)
    cięcie strumieniem wody
    cięcie tlenowo-acetylenowe
    cięcie laserem
    Opis:
    The steel substrate was cut by means of different methods, like water jet, laser or oxyacetylene blowpipe. So, some different surfaces (after cutting / without cutting) were subjected to the (Zn) - hot dip galvanizing. The galvanizing process was performed in industrial conditions by applying the constant temperature equal to 457°C, and a dipping time equal to 150 s. The (Zn) - coating morphologies and sub-layer thicknesses were analyzed to explain some expected differences in the coatings formation.
    W prezentowanej pracy podłoże stalowe cięto stosując różne metody: strumień wody, laser, palnik acetylenowo-tlenowy. W wyniku tego otrzymano zróżnicowaną powierzchnię (po cięciu/bez cięcia), która poddano cynkowaniu ogniowemu. Proces cynkowania wykonywano w warunkach przemysłowych stosując stałe parametry: temperaturę 457°C, czas zanurzenia t=150 s. W trakcie badań analizowano morfologię powłoki cynkowej oraz grubości poszczególnych podwarstw w celu wyjaśnienia różnic w narastaniu powłok.
    Źródło:
    Archives of Metallurgy and Materials; 2014, 59, 4; 1373-1378
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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