Autor: Binczyk, F. - Katalog OPAC zbiorów

Skocz do pozycji: 1.

Tytuł:: Analysis of solidification parameters and macrostructure of IN-713C castings after complex modification
Autorzy:: Binczyk, F.
Gradoń, P.
Powiązania:: https://bibliotekanauki.pl/articles/379884.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: nickel alloy
superalloy
modification
inoculation
solidification
thermal analysis
macrostructure
stop niklu
nadstop
modyfikacja
inokulacja
krzepnięcie
analiza termiczna
makrostruktura
Opis:: The paper presents a research results concerning impact of volume modification (ceramic filter containning cobalt aluminate and hafnium powder) and simultaneous surface and volume modification on solidification and stereological parameters of macrostructure of castings made from post-production scrap of nickel superalloy IN-713C. Research included investigation of the influence of chemical composition on the temperature T_liq i T_sol and evaluation of following macrostructure parameters: the number of grains per mm², average grain area and shape coefficient. Results indicate high influence of carbon content on T_liq. Macrostructure of sample castings indicate positive effect of surface and volume modification, however impact of surface modification is more pronounced.
Źródło:: Archives of Foundry Engineering; 2013, 13, 3; 5-8
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 2.

Tytuł:: Mechanical properties and creep resistance of nickel alloys after complex modification and double filtration
Autorzy:: Binczyk, F.
Gradoń, P.
Mańka, M.
Powiązania:: https://bibliotekanauki.pl/articles/382498.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: nadstop niklu
makrostruktura
modyfikacja
filtracja
twardość
odporność na pełzanie
nickel superalloy
macrostructure
modification
filtration
hardness
creep behaviour
Opis:: The paper presents the results of studies to determine the effect of complex surface and bulk modification and double filtration during mould pouring on the stereological parameters of macrostructure and mechanical properties of castings made from the post-production waste IN-713C and the MAR-247 nickel alloys. The evaluation covered the number of grains per 1mm2 of the sample surface area, the average area of grains and the shape index, hardness HB, tensile strength and resistance to high temperature creep. The results indicate the possibility of controlling the stereological parameters of macrostructure through application of several variants of the modification, controlling in this way also different low- and high-temperature properties. The positive effect of double filtration of the alloy during mould pouring on the metallurgical quality and mechanical properties of castings has also been emphasized.
Źródło:: Archives of Foundry Engineering; 2012, 12, 2; 5-8
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 3.

Tytuł:: Application of Modified Cores for Grain Refinement in Castings of Aircraft Turbine Blades
Autorzy:: Binczyk, F.
Cwajna, J.
Gradoń, P.
Powiązania:: https://bibliotekanauki.pl/articles/382651.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative casting materials
innovative casting technologies
Nickel alloy IN-713C
surface modification
turbine blades
macrostructure
innowacyjne materiały odlewnicze
innowacyjne technologie odlewnicze
Stop niklu IN-713C
modyfikacja powierzchni
łopatki turbinowe
makrostruktura
Opis:: Paper presents the results of research on modified surface grain refinement method used in investment casting of hollow, thin-walled parts made of nickel based superalloys. In the current technology, the refining inoculant is applied to the surface of the wax pattern and then, it is transferred to the ceramic mould surface during dewaxing. Because of its chemical activity the inoculant may react with the liquid metal which can cause defects on the external surface of the cast part. The method proposed in the paper aims to reduce the risk of external surface defects by applying the grain refiner only to the ceramic core which shapes the internal surface of the hollow casting. In case of thin-walled parts the grain refinement effect is visible throughout the thickness of the walls. The method is meant to be used when internal surface finish is less important, like for example, aircraft engine turbine blades, where the hollowing of the cast is mainly used to lower the weight and aid in cooling during operation.
Źródło:: Archives of Foundry Engineering; 2017, 17, 3; 19-22
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 4.

Tytuł:: ATD and DSC Analysis of IN-713C and ZhS6U-VI Superalloys
Autorzy:: Binczyk, F.
Cwajna, J.
Gradoń, P.
Powiązania:: https://bibliotekanauki.pl/articles/381895.pdf
Data publikacji:: 2017
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: innovative casting materials
innovative casting technologies
Nickel superalloys
ATD method
DSC method
solidification parameters
innowacyjne materiały odlewnicze
innowacyjne technologie odlewnicze
stopy niklu
metoda ATD
metoda DSC
parametry krzepnięcia
Opis:: Paper presents the results of ATD and DSC analysis of two superalloys used in casting of aircraft engine parts. The main aim of the research was to obtain the solidification parameters, especially Tsol and Tliq, knowledge of which is important for proper selection of casting and heat treatment parameters. Assessment of the metallurgical quality (presence of impurities) of the feed ingots is also a very important step in production of castings. It was found that some of the feed ingots delivered by the superalloy producers are contaminated by oxides located in shrinkage defects. The ATD analysis allows for quite precise interpretation of first stages of solidification at which solid phases with low values of latent heat of solidification are formed from the liquid. Using DSC analysis it is possible to measure precisely the heat values accompanying the phase changes during cooling and heating which, with knowledge of phase composition, permits to calculate the enthalpy of formation of specific phases like γ or γ′.
Źródło:: Archives of Foundry Engineering; 2017, 17, 1; 13-16
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 5.

Tytuł:: Mixture model of NMR - its application to diagnosis and treatment of brain cancer
Autorzy:: Binczyk, F.
Tarnawski, R.
Polańska, J.
Powiązania:: https://bibliotekanauki.pl/articles/229861.pdf
Data publikacji:: 2010
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: GMM
EM algorithm
BIC
NMR
Savitzky-Golay filter
Opis:: Nuclear Magnetic Resonance (NMR) is widely used technique in cancer diagnosis and treatment planning. It is employed to search for the high concentration regions of particular metabolites, which are directly related to the concentration of cancer cells. NMR signal maybe be characterized by a set of peaks which are representation of every distinct metabolite. Area under peak must be calculated in order to obtain proper information about metabolite amount. Commercially available software allows for the analysis of one-peak-in-time only. The proposed technique, based on Gaussian Mixture Model (GMM), allows for modeling all-peaks-in-time, and corrects after the neighboring peaks giving more accurate estimates of metabolite concentration. The resulting software processes NMR signal from the very beginning up to the final result, which is given in a form of so called metabolite map.
Źródło:: Archives of Control Sciences; 2010, 20, 4; 457-472
1230-2384
Pojawia się w:: Archives of Control Sciences
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 6.

Tytuł:: Ceramic filters for bulk inoculation of nickel alloy castings
Autorzy:: Binczyk, F.
Śleziona, J.
Gradoń, P.
Powiązania:: https://bibliotekanauki.pl/articles/379709.pdf
Data publikacji:: 2011
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: nickel superalloy
ceramic filter
CoAl2O4 inoculant
compression strength
nadstop niklu
filtr ceramiczny
inokulant CoAl2O4
wytrzymałość na ściskanie
Opis:: The work includes the results of research on production technology of ceramic filters which, besides the traditional filtering function, play also the role of an inoculant modifying the macrostructure of cast nickel alloys. To play this additional role, filters should demonstrate sufficient compression strength and ensure proper flow rate of liquid alloy. The role of an inoculant is played by cobalt aluminate introduced to the composition of external coating in an amount from 5 to 10 wt.%. The required compression strength (over 1MPa) is provided by the supporting layers, deposited on the preform, which is a polyurethane foam. Based on a two-level fractional experiment 2^4-1, the significance of an impact of various technological parameters (independent variables) on selected functional parameters of the ready filters was determined. Important effect of the number of the supporting layers and sintering temperature of filters after evaporation of polyurethane foam was stated.
Źródło:: Archives of Foundry Engineering; 2011, 11, 3 spec.; 29-32
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 7.

Tytuł:: Impact of surface and volume modification of nickel superalloys IN-713C and MAR-247 on high temperature creep resistance
Autorzy:: Cieśla, M.
Binczyk, F.
Mańka, M.
Powiązania:: https://bibliotekanauki.pl/articles/380339.pdf
Data publikacji:: 2012
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: nadstop niklu
makrostruktura
właściwości mechaniczne
pełzanie
nickel superalloy
macrostructure
modification
mechanical properties
creep
Opis:: Impact of surface and volume modification and double filtration during pouring the moulds on basic mechanical properties and creep resistance of nickel superalloys IN-713C and MAR-247 in conditions of accelerated creep of castings made of post-production scrap of these alloys is evaluated in this paper. The conditions of initiation and propagation of cracks in the specimens were analysed with consideration of stereological properties of material macro- and microstructure. It has been proven that in the conditions of high-temperature creep at 980 C and at stress [...] = 150 MPa, creep resistance of superalloy MAR-247 is more than 10 times higher than the creep resistance of IN-713C alloy. In case of IN-713C alloy, the creep resistance negligibly depends on macrograin sizes. But, the macrograin size considerably affects the time to failure of specimens made of alloy MAR-247. Creep resistance of specimens made of coarse grain material was 20% higher than the resistance of fine grain materials.
Źródło:: Archives of Foundry Engineering; 2012, 12, 4; 17-24
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 8.

Tytuł:: The Effect of Temperature on the Result of Complex Modification of IN-713C Superalloy Castings
Autorzy:: Binczyk, F.
Gradoń, P.
Mańka, M.
Findziński, R.
Powiązania:: https://bibliotekanauki.pl/articles/383137.pdf
Data publikacji:: 2015
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: Innovative casting material
innovative casting technology
nickel alloy IN-713C
modification
cobalt aluminate
macrostructure
innowacyjny materiał odlewniczy
innowacyjna technologia odlewnicza
stop niklu IN-713C
glinek kobaltu
makrostruktura
Opis:: The paper presents the results of research on the determination of the effect of pouring temperature on the macrostructure of the castings subjected to complex (surface and volume) modification and double filtration. Tested castings were made of post-production scrap (gating system parts) of IN-713C superalloy. Tests included the evaluation of the number of grains per 1 mm², mean grain surface area, shape factor and tensile strength. Casting temperature below 1470 °C positively influenced the modification effect. The grains were finer and the mechanical properties increased, especially for castings with thicker walls. On the other hand, manufacture of thin walled castings of high quality require pouring temperature above 1480 °C.
Źródło:: Archives of Foundry Engineering; 2015, 15, 4; 13-16
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 9.

Tytuł:: Evaluation of Casting Shrinkage and Liquid Metal Fluidity of IN-713C Alloy
Autorzy:: Binczyk, F.
Cieśla, M.
Gradoń, P.
Findziński, A.
Powiązania:: https://bibliotekanauki.pl/articles/380184.pdf
Data publikacji:: 2014
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: fluidity
castability
spiral test
pouring temperature
IN713C
superalloy
silumin
płynność
lejność
temperatura odlewania
nadstop
Opis:: This paper presents the results of measurements of liquid metal fluidity and linear shrinkage of nickel alloy IN-713C in vacuum induction melting furnace Balzers VSG-2. Because of limited volume of the furnace chamber special models for technological trials were fluidity of hypoeutectic silumin, however in case of nickel superalloy the mould cavity was completely filled in each test because of high required pouring temperature. Positive results were obtained from the modified spiral test for all alloys used in the research. Relationship between the linear shrinkage for the test rod and a specific indicator of contraction defined on a spiral was observed.
Źródło:: Archives of Foundry Engineering; 2014, 14, 1; 9-12
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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Skocz do pozycji: 10.

Tytuł:: The influence of impurities in feed ingots on the quality of castings made from nickel superalloy IN-713C
Autorzy:: Binczyk, F.
Cwajna, J.
Sozańska, M.
Gradoń, P.
Powiązania:: https://bibliotekanauki.pl/articles/381414.pdf
Data publikacji:: 2013
Wydawca:: Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:: ATD
superalloy
feed ingot
master heat
solidification
non-metallic inclusion
nadstop
wlewek
krzepnięcie
wtrącenie niemetaliczne
Opis:: The paper presents the results of research on the impact of impurities in the feed ingots (master heat) on the precipitation of impurities in the ATD thermal analysis probe castings. This impurities occur mostly inside shrinkage cavities and in interdendritic space. Additionally, insufficient filtration of liquid alloy during pouring promotes the transfer of impurities into the casting. The technology of melting superalloys in vacuum furnace prevents the removal of slag from the surface of molten metal. Because of that, the effective method of quality assessment of feed ingots in order to evaluate the existence of impurities is needed. The effectiveness of ATD analysis in evaluation of purity of feed ingots was researched. In addition the similarities of non-metallic inclusions in feed ingots and in castings were observed.
Źródło:: Archives of Foundry Engineering; 2013, 13, 4; 5-8
1897-3310
2299-2944
Pojawia się w:: Archives of Foundry Engineering
Dostawca treści:: Biblioteka Nauki

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