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    Wyświetlanie 1-15 z 15
    Tytuł:
    X-ray Diffraction Study of Directional Solidification Ledeburite
    Autorzy:
    Trepczyńska-Łent, M.
    Szykowny, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/379952.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    X-ray diffraction
    ledeburite eutectic
    directional solidification
    dyfrakcja rentgenowska
    ledeburyt
    krzepnięcie kierunkowe
    Opis:
    Directionally solidified sample of Fe-Fe3C eutectic alloy were produced under an argon atmosphere in a vacuum Bridgman-type furnace to study the eutectic growth with v = 167 μm/s pulling rate and constant temperature gradient G = 33.5 K/mm. Since how the growth texture of eutectic cementite is related to its growth morphology remains unclear, the current study aims to examine this relationship. The technique such as X-ray diffraction, have been used for the crystallographic analysis of carbide particles in white cast irons.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 3; 71-76
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The “Metallurgists Hoard”. Silver and Lead Smelting in the Early Medieval Poland
    Autorzy:
    Garbacz-Klempka, A.
    Rozmus, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/382578.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    non-destructive testing
    archaeometallurgy
    silver
    lead
    X-ray fluorescence
    cupellation
    badania nieniszczące
    srebro
    ołów
    XRF
    Opis:
    During archaeological research of early medieval settlement in Dąbrowa Górnicza - Łosień, a hoard of silver coins and silver smelts was discovered, over 1000 items in total. There was also found a mining shaft and numerous furnaces in the settlement area, confirming its mining and metallurgical character. The settlement development was based on excavating and smelting rich lead ores, containing significant amount of silver. Silver was separated from lead in successive stages with the help of cupellation. The paper presents the analyses of silver smelts and coins coming from the hoard. Optical and scanning microscopy were applied as well as the methods of chemical content analysis by X-Ray Fluorescence (XRF), Scanning Electron Microscopy and Energy Dispersive Spectroscopy in microareas (SEM-EDS), and also phase analysis with the help of X-Ray Diffraction method (XRD). The impurities of the silver clumps testify to the fact that they are semi-products. After refining and modifying the material by adding copper, denars were minted from it. The silver coins belonging the hoard are made from relatively pure material, including a small lead. An insignificant amount of other metallic elements testifies to the good quality of the raw material and efficiency of silver production in the early Middle Ages.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 1 spec.; 17-20
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Three Dimensional Morphology of β-Al5FeSi Intermetallics in AlSi Alloys
    Autorzy:
    Mikołajczak, P.
    Ratke, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/383272.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    aluminum alloy
    intermetallics
    β-Al5FeSi
    X-ray tomography
    morphology
    solidification
    stop aluminium
    intermetalik
    tomografia rentgenowska
    Opis:
    Iron is the most common and detrimental impurity in casting alloys and has been associated with many defects. The main consequence of the presence or adding of iron to AlSi alloys is the formation Fe-rich intermetallics with especially deleterious β-Al5FeSi. β-Al5FeSi phases are most often called needles on 2D micro sections, whilst platelets in 3D geometry. The x-ray tomography results have demonstrated Fe-rich phases with shapes different from simple forms such as needles or platelets and presented bent and branched phases. β grown as complicated structure of bent and branched intermetallics can decrease feeding ability, strengthen pores nucleation and eutectic colonies nucleation leading to lower permeability of mushy zone and porosity in the castings.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 1; 47-50
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    XRD and EBSD Measurements of Directional Solidification Fe-C Eutectic Alloy
    Autorzy:
    Trepczyńska-Łent, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/382146.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    X-ray diffraction
    EBSD technique
    carbide eutectic
    directional solidification
    dyfrakcja rentgenowska
    dyfrakcja elektronów wstecznie rozproszonych
    krzepnięcie kierunkowe
    Opis:
    In a vacuum Bridgman-type furnace, under an argon atmosphere, directionally solidified sample of Fe-C alloy was produced. The pulling rate was v = 83 μm/s (300 mm/h) and constant temperature gradient G = 33,5 K/mm. The microstructure of the sample was examined on the longitudinal section using an Optical Microscope and Scanning Electron Microscope. The X-ray diffraction and electron backscatter diffraction technique (EBSD) have been used for the crystallographic analysis of carbide particles in carbide eutectic. The X-ray diffraction was made parallel and perpendicular to the axis of the goniometer. The EBSD shows the existence of iron carbide Fe3C with orthorhombic and hexagonal structure. Rapid solidification may cause a deformation of the lattice plane which is indicated by different values of the lattice parameters. Such deformation could also be the result of directional solidification. Not all of the peaks in X–ray diffractograms were identified. They may come from other iron carbides. These unrecognized peaks may also be a result of the residual impurity of alloy.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 4; 169-174
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Ausferritic Microstructure Phase Analysis in Ductile Iron
    Autorzy:
    Trzaskowski, W.
    Nawrocki, P.
    Łukasik, K.
    Myszka, D.
    Powiązania:
    https://bibliotekanauki.pl/articles/381436.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    image analysis
    ausferritic ductile iron
    x-ray diffraction
    austenite
    ferrite
    analiza obrazu
    żeliwo sferoidalne
    dyfrakcja rentgenowska
    austenit
    ferryt
    Opis:
    Image analysis allows to acquire a number of valuable quantitative informations on the observed structure and make appropriate conclusions. So far, a large part of analyzed images came only from light microscopes, where it was a possibility of accurately distinguish the different phases on the plane. However, the problem happened in the case of the observation of images obtained by scanning electron microscopy. In this case, the presence of various shades of gray, and the spaciousness of the image attained. To perform the analysis the matrix images of the ausferritic ductile iron were used. Full analysis was carried out using the computer program MicroMeter 1.03. Results obtained in the analysis were related directly to the results from X-ray diffraction. Obtained as a result of the analysis were related directly to the results from X-ray diffractometer. The following technique has weaknesses, including the misinterpretation by the operator microscope or program. After all, it was possible to obtain similar results to the result that has been obtained from X-ray diffractometer.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 2; 112-116
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Metallographic Characterization of Metal Artifacts Based on Late Medieval Examples
    Autorzy:
    Garbacz-Klempka, A.
    Kwak, Z.
    Perek-Nowak, M.
    Starski, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/382140.pdf
    Data publikacji:
    2015
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    nondestructive testing
    copper alloy
    brasses
    casting
    X-ray fluorescence
    SEM-EDS
    badania nieniszczące
    stop miedzi
    mosiądz
    odlewnictwo
    fluorescencja rentgenowska
    Opis:
    This work presents the metallographical observations of the chosen copper objects from the Late Middle Ages. Part of these studies is the analysis of metal relics from the Puck area conducted at the Faculty of Foundry, AGH-UST, in collaboration with the University of Warsaw. Medieval European cities were centers of trade and production of metal artifacts. Also in the Puck area, the manufacturing activities can be confirmed based on the metal findings. The aim of this study was to identify and systematize copper alloys used in the Late Medieval Period, on the basis of historic artifacts from Puck. The chemical composition analysis and microstructure observation were carried out. The research is at the first stage of an experiment of reconstructing the medieval alloys in order to study deeper their properties.
    Źródło:
    Archives of Foundry Engineering; 2015, 15, 4 spec.; 29-34
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of a Castings Quality and Metalworking Technology. Treasure of the Bronze Age Axes
    Autorzy:
    Garbacz-Klempka, A.
    Kaczmarek, Ł.
    Kwak, Z.
    Kozana, J.
    Piękoś, M.
    Perek-Nowak, M.
    Długosz, P.
    Powiązania:
    https://bibliotekanauki.pl/articles/382751.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    non-destructive testing
    archeometallurgy
    tin bronze
    X-ray spectroscopy
    castings defects
    badania nieniszczące
    archeometalurgia
    brąz
    spektroskopia rentgenowska
    wady odlewów
    Opis:
    Cast axes are one of the most numerous categories of bronze products from earlier phases of the Bronze Age found in Poland. They had multiple applications since they were not only used objects such as tools or weapons but also played the prestigious and cult roles. Investigations of the selected axes from the bronze products treasure of the Bronze Age, found in the territory of Poland, are presented in the hereby paper. The holder of these findings is the State Archaeological Museum in Warsaw. Metallurgical investigations of axes with bushing were performed in respect of the casting technology and quality of obtained castings. Macroscopic observations allowed to document the remains of the gating system and to assess the range and kind of casting defects. Light microscopy revealed the microstructure character of these relicts. The chemical composition was determined by means of the X-ray fluorescence method with energy dispersion (ED-XRF) and by the scanning electron microscopy with X-ray energy dispersion analysis in micro-areas (SEM-EDS). The shape and dimensions of cores, reproducing inner parts of axes were identified on the basis of the X-ray tomography images. Studies reconstructed production technology of the mould with gating system, determined chemical composition of the applied alloys and casting structures as well as revealed the casting defects being the result of construction and usage of moulds and cores.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 3; 179-285
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Archaeometallurgical Investigations of the Early Iron Age Casting Workshop at Kamieniec. A Preliminary Study
    Autorzy:
    Garbacz-Klempka, A.
    Kowalski, Ł.
    Kozana, J.
    Gackowski, J.
    Perek-Nowak, M.
    Szczepańska, G.
    Piękoś, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/383062.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    non-destructive testing
    investment casting
    X-ray fluorescence spectroscopy
    archaeometallurgy
    Lusatian culture
    badania nieniszczące
    odlewnictwo
    promieniowanie rentgenowskie
    kultura łużycka
    Opis:
    (Chełmno land, Poland) as it is reflected through casting workshop recovered during recent excavations. Among ready products, the ones giving evidence of local metallurgy (e.g. casting moulds and main runners) were also identified. With the shrinkage cavities and dendritic microstructures revealed, the artifacts prove the implementing a casting method by the Lusatian culture metalworkers. The elemental composition indicates application of two main types of bronzes: Cu-Sn and Cu-Pb. Aside these main alloying additions, some natural impurities such as silver, arsenic, antimony and nickel were found which may be attributed to the origin of the ore and casting technology. The collection from Kamieniec was described in terms of its structure and composition. The investigations were made by means of the energy dispersive X-ray fluorescence spectroscopy (ED-XRF), scanning electron microscopy (SEM) coupled with an energy dispersive X-ray analysis system (EDS) and optical microscopy (OM). In order to fingerprint either local or non-local profile of the alloys, the ED-XRF data-set was statistically evaluated using a factor analysis (FA).
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 3; 29-34
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    X-ray tomography investigation of Fe-rich intermetallics in AlSi alloys
    Autorzy:
    Mikołajczak, P.
    Ratke, L.
    Powiązania:
    https://bibliotekanauki.pl/articles/381463.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    aluminum alloy
    intermetallics
    β-Al5FeSi
    X-ray tomography
    melt flow
    stop aluminium
    związek międzymetaliczny
    tomografia rentgenowska
    szybkość przepływu
    Opis:
    Iron exists as a common impurity element in AlSi foundry alloys. The main consequence of the presence or adding of iron to AlSi alloys is the formation Fe-rich intermetallics with especially deleterious β-Al5FeSi. This work aims to identify the role of fluid flow on the microstructure and intermetallics in Al-9 wt.% Si-0.2/0.5/1.0 wt.% Fe alloys directionally solidified under defined thermal and fluid flow conditions and extensively uses 3D x-ray tomography to get a better insight into their morphology and formation. The results have revealed the growth of larger and more dense β-Al5FeSi intermetallics in the specimen centre as an effect of forced flow. The reconstructions confirmed that the course of number density at the specimen cross section increases from the specimen edge to its centre.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 4; 79-82
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of Thermal Stability of Intermetallic Phases Precipitates in Continuous Ingots of AlCu4MgSi Alloy
    Autorzy:
    Nuckowski, P. M.
    Kondracki, M.
    Wróbel, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/382300.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    aluminium alloys
    phase analysis
    high temperature X-ray diffraction
    thermal-derivative analysis
    stopy aluminium
    analiza fazowa
    wysokotemperaturowa dyfrakcja rentgenowska
    analiza termopochodna
    Opis:
    The article presents the results of research concerning to AlCu4MgSi alloy ingots produced using horizontal continuous casting process. The presented research was focused on the precise determination of phase composition of the precipitates formed during the solidification of ingots and the analysis of their thermal stability. In order to assess the morphology of precipitates in the AlCu4MgSi alloy, data obtained by using a computer simulation of thermodynamic phenomena were compiled with results obtained using advanced research techniques, i.e. High-temperature X-ray diffraction (HT-XRD), SEM-EDS, Thermal and derivative analysis (TDA) and Glow discharge optical emission spectroscopy (GD OES). SEM observations and analysis of chemical composition in micro-areas showed that the precipitates are mainly intermetallic θ-Al2Cu and β-Mg2Si phases, and also presence of Al19Fe4MnSi2 intermetallic phase was confirmed by X-ray diffraction studies. Based on the prepared Thermo-Calc simulation data, high-temperature X-ray diffraction measurements were conducted.
    Źródło:
    Archives of Foundry Engineering; 2019, 4; 99-104
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Influence of Variable Parameters of Horizontal Continuous Casting on the Structure of AlCu4MgSi Alloy Ingots
    Autorzy:
    Nuckowski, P. M.
    Wróbel, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/380484.pdf
    Data publikacji:
    2018
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    metallography
    aluminum alloys
    continuous casting
    structure analysis
    X-ray diffraction
    phase analysis
    metalografia
    stopy aluminium
    odlewanie ciągłe
    analiza struktury
    dyfrakcja rentgenowska
    analiza fazy
    Opis:
    The article presents results of research on the influence of variable parameters of horizontal continuous casting on the structure of AlCu4MgSi (EN AW-2017A) alloy ingots. The special character of the process allows for a continuous change of some of its parameters, namely, of the casting speed and of the rate of the cooling fluid flow thorough the crystallizer. These parameters have a significant impact on the crystallization process of the liquid metal. Depending on the cooling rate, intensity of the convection inside the solidifying alloy, and its chemical composition, there may arise some differences in the structure of the cast. In this study, ingots obtained at different casting speeds have been analyzed. The research methodology, based on light microscopy and electron microscopy (SEM), as well as energy dispersive spectroscopy (EDS) and X-ray diffraction (XRD), allowed for a thorough examination of the structure of the studied materials. The results were shown that an increase in the ingot casting speed leads to an increase in the average grain surface area.
    Źródło:
    Archives of Foundry Engineering; 2018, 18, 1; 196-202
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Nieniszczące badania średniowiecznej buławy
    Non-Destructive Research on the Medieval Mace
    Autorzy:
    Rudzińska, M.
    Garbacz-Klempka, A.
    Dyga, A.
    Liwoch, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/379948.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    badania nieniszczące
    spektrometria fluorescencji rentgenowskiej
    konserwacja zabytku
    stop miedzi
    buława średniowieczna
    nondestructive testing
    X-ray fluorescence spectrometry
    conservation of monument
    copper alloy
    medieval mace
    Opis:
    W artykule przedstawiono analizę składu i sposobu produkcji buławy średniowiecznej pochodzącej ze zbiorów Muzeum Archeologicznego w Krakowie. Buława jest bronią obuchową, a także atrybutem władzy. Badania te były ważną częścią prac konserwatorskich, wykonywanych dla tego zabytku. Warunkiem przeprowadzenia badań składu chemicznego na zabytku było zastosowanie metody nieinwazyjnej, w związku z tym wykorzystano spektrometrię fluorescencji rentgenowskiej z dyspersją energii. Badania składu przeprowadzono na kilku etapach prac konserwatorskich: przed podjęciem konserwacji (w celu dobrania odpowiedniego programu konserwatorskiego) oraz po oczyszczeniu powierzchni z nawarstwień korozyjnych (w celu określenia składu czystej powierzchni metalu). Wykazały one, że buława odlana została z brązu ołowiowego. Pod warstwą korozji zachował się dość jednolity skład stopu, pomimo zalegania w niekorzystnym środowisku ziemnym. Wśród opublikowanych badań składu buław brązowych, nie natrafiono na analogiczny stop o podobnych proporcjach zawartości pierwiastków. Brązy te zawierały zazwyczaj dużą ilość cyny z domieszką ołowiu. Omawiany zabytek wyróżnia się więc składem chemicznym stopu. Analizę składu uzupełniono obserwacją makro- i mikroskopową powierzchni obiektu pod kątem stanu zachowania oraz techniki wykonania. Z obserwacji wynika, że zastosowano metodę wytapianych modeli. Na powierzchni zabytku zaobserwowano wady powierzchni surowej oraz uszkodzenia mechaniczne. Prace konserwatorskie zabezpieczyły buławę oraz przygotowały do ewentualnej ekspozycji muzealnej. Dzięki badaniom zabytku, wiedza na temat buław odkrytych na ziemiach polskich została poszerzona o kolejny egzemplarz.
    The article presents detailed scientific analysis of the chemical composition and way of production of the medieval mace from a collection of the Archaeological Museum in Cracow. This research was an important part of conservation work on the mace head. The main condition for conducting a study of chemical composition of the artifact was to use a non-destructive method, and therefore the piece has been investigated using methods: macro and microscopic analysis and energy dispersive X-ray fluorescence (EDXRF). The study was carried out during several stages of conservation works: before conservation in order to select the appropriate conservation program and after cleaning the surface from corrosive layers to determine the composition of pure metal surface. The alloy used for the mace head proved to be lead-copper alloy. Underneath the corrosion layer remained quite a homogeneous composition. Published studies on the composition of bronze maces presents bronzes with a different percentage composition of alloy elements. These bronzes typically contain a large amount of tin with added lead. This mace head is distinguished by the chemical composition of the alloy. Macro and microscopic studies of the surface show that in order to produce the mace head the method of lost wax was used. Macro and microscopic studies of the surface revealed some defects and mechanical damage. The conservation work secured the mace and prepared for a museum exposition.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 3 spec.; 139-142
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Bronze Jewellery from the Early Iron Age urn-field in Mała Kępa. An approach to casting technology
    Autorzy:
    Garbacz-Klempka, A.
    Kowalski, Ł.
    Gackowski, J.
    Perek-Nowak, M.
    Powiązania:
    https://bibliotekanauki.pl/articles/379760.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    bronze jewellery
    non-destructive testing
    investment casting
    X-ray fluorescence spectroscopy
    archaeometallurgy
    Lusatian culture
    biżuteria z brązu
    badania nieniszczące
    odlewnictwo
    spektroskopia rentgenowska
    archeometalurgia
    kultura łużycka
    Opis:
    This study characterizes the bronze jewellery recovered from the Lusatian culture urn-field in Mała Kępa (Chełmno land, Poland). Among many common ornaments (e.g. necklaces, rings, pins) the ones giving evidence of a steppe-styled inspiration (nail earrings) were also identified. With the dendritic microstructures revealed, the nail earrings prove the implementing of a lost-wax casting method, whereas some of the castings were further subjected to metalworking. The elemental composition indicates the application of two main types of bronze alloys: Cu-Sn and Cu-Sn-Pb. It has been established that the Lusatian metalworkers were familiar with re-melting the scrap bronze and made themselves capable of roasting the sulphide-rich ores. The collection from Mała Kępa has been described in terms of its structure and composition. The investigations were made by means of the energy dispersive X-ray fluorescence spectroscopy (ED-XRF), scanning electron microscopy (SEM) coupled with an energy dispersive X - ray analysis system (EDS) and optical microscopy (OM). In order to fingerprint an alloy profile of the castings with a special emphasis on the nail earrings, the data-set (ED-XRF, EDS) was statistically evaluated using multidimensional analyses (FA, DA).
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 3; 175-183
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    The Analysis of Foundry Engineering of Copper Alloys Based on the Research of a Metallurgist Settlement in Szczepidło
    Autorzy:
    Garbacz-Klempka, A.
    Makarowicz, P.
    Tokarski, T.
    Powiązania:
    https://bibliotekanauki.pl/articles/382112.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    non-destructive testing
    archaeometallurgy
    bronze age workshop
    investment casting
    copper alloys
    X-ray fluorescence spectroscopy
    badania nieniszczące
    archeometria
    epoka brązu
    odlewy
    stopy miedzi
    spektroskopia rentgenowska
    Opis:
    The article presents chosen aspects of foundry engineering of the settlement dwellers, including the archaeometric characteristics and metal science analysis of the artefacts, as well as an attempted reconstruction of the production organization. Discovered in Szczepidło (Greater Poland), the foundry workshop is unique in Central European Bronze Age. This workshop foundry operated roughly XIV-XII Century BC. Its production is evidenced by the presence of markers of the whole production cycle: semi-finished and finished products, production waste, fragments of crucibles and casting ladles with traces of usage, and tools. On this basis the alloys and foundry technologies used have been described. The analysis of foundry technology of copper alloys in the settlement area was carried out by observing the surface and structure of the products, semi-finished artefacts and fragments of crucibles by applying optical microscopy (OM), confocal microscopy (CLSM) and X-ray radiography (RT). The investigations of compositions were made by means of the energy dispersive X-ray fluorescence spectroscopy (ED-XRF) and scanning electron microscopy (SEM) coupled with an energy dispersive X-ray analysis system (EDS).
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 1; 45-50
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of Wax Pattern Surface Quality on Prime Coat of Ceramic Mold
    Autorzy:
    Bałkowiec, A.
    Wawulska, P.
    Matysiak, H.
    Rabajczyk, A.
    Smektała, P.
    Zdunek, J.
    Kurzydłowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/379707.pdf
    Data publikacji:
    2014
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    casting quality management
    wax pattern
    technological properties
    ceramic shell mold
    roughness
    X-ray tomography
    zarządzanie jakością odlewów
    model woskowy
    właściwości technologiczne
    forma ceramiczna
    chropowatość
    tomografia rentgenowska
    Opis:
    The authors have made an attempt to enrich the knowledge about the influence of wax pattern washing process and its influence on the quality of the shell prime coat. Two types of wax were investigated: A7Fr/60 and KC2690. A7Fr60 is used for pattern fabrication, while KC2690 is typical sprue wax. The goal of work was to establish wax solubility accuracy in Trisol 60 Plus and Houghto Clean 530 versus time and influence of dipping time to wax samples surface quality. Additionally, after exposition of wax samples, their surface morphology was characterized with the use of laser profilometry and surface roughness measurement. The quality of formed prime coat was established by X-ray tomography. The measurement of wetting angle of the wax by binder was conducted. The results have shown that the main factor which influences the quality of the prime coat is surface wettability rather than wax surface roughness.
    Źródło:
    Archives of Foundry Engineering; 2014, 14, 1 spec.; 67-72
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
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