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Wyświetlanie 1-15 z 86
Tytuł:
Comprehensive Processing of Basalt together with Magnetite Concentrate in Order to Obtain Ferrous Alloy and Calcium Carbide
Autorzy:
Shevko, V. M.
Karataeva, G. E.
Badikova, A. D.
Tuleev, M. A.
Uteeva, R. A.
Powiązania:
https://bibliotekanauki.pl/articles/1840830.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
basalt
ferrous alloy
calcium carbide
electric smelting
bazalt
stop żelaza
węglan wapnia
wytapianie elektryczne
Opis:
This article is devoted to basalt reprocessing together with magnetite concentrate in order to obtain ferrous alloy and calcium carbide. The studies have been based on thermodynamic simulation and electric smelting in arc furnace. The thermodynamic simulation has been performed using HSC-5.1 software based on the principle of minimum Gibbs energy. The blend was smelted in arc furnaces. On the basis of the obtained results of combined processing of basalt, it has been established that under equilibrium conditions, the increase in carbon content from 36 to 42 wt % of basalt and concentrate mixture makes it possible to increase the aluminum extraction into the alloy up to 81.4%, calcium into calcium carbide – up to 51.4%, and silicon into the alloy – up to 78.5% [...]
Źródło:
Archives of Foundry Engineering; 2020, 20, 4; 41-54
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Przykład obróbki cieplnej odlewów z żeliwa wysokochromowego
Example of Heat Treatment of High Chromium Cast Iron
Autorzy:
Siekaniec, D.
Szczęsny, A.
Kopyciński, D.
Powiązania:
https://bibliotekanauki.pl/articles/380144.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
obróbka cieplna
żeliwo wysokochromowe
mikrostruktura odlewu
twardość odlewu
heat treatment
high chromium cast iron
alloy microstructure
alloy hardness
Opis:
Żeliwo wysokochromowe jest powszechnie stosowanym materiałem w przemyśle górniczym i mineralnym, gdzie wymagana jest duża odporność na zużycie ścierne. Swoje dobre właściwości zawdzięcza obecności w mikrostrukturze twardych węglików. Żeliwo chromowe poddawane hartowaniu ma w praktyce osnowę austenityczną, austenityczno-perlityczną lub perlityczną. Istotnym procesem w czasie obróbki cieplnej jest tzw. destabilizacja austenitu, jest on ważny ponieważ dopiero po jego zajściu może nastąpić przemiana martenzytyczna. W zależności od szybkości chłodzenia, które następuje po procesie destabilizacji austenitu, może powstać perlit, bainit i martenzyt. Przeprowadzone badania dotyczyły określenia wpływu szybkości chłodzenia odlewów z żeliwa wysokochromowego po obróbce cieplnej, na mikrostrukturę i twardość. Badaniu zostało poddane żeliwo wysokochromowe o zawartości 27%Cr i 2,7%C. Przeprowadzono zabieg hartowania z temperatury 950 °C w czasie 4h, następnie odlewy poddano trzem wariantom chłodzenia – w wodzie, w kąpieli solnej i na powietrzu. Zbadano i porównano mikrostrukturę oraz twardość odlewów dla różnych wariantów chłodzenia.
High Chromium Cast Iron (HCCI) is widely use in mining and mineral industry, where abrasive resistance is a principal requirement. Its good properties thanks to the hard eutectic carbides occurring in the microstructure. The effect of heat treatment on HCCI was a subject of many research. High Chromium Cast Iron have an austenitic, austenitic-pearlitic or pearlitic matrix. An important process during the heat treatment is austenite destabilization, thus until after it conduct the martensitic transformation can occur. Depending on the cooling rate that follows the process of destabilization of austenite, perlite, bainite and martensite may form. The present work, aimed at studying the influence of cooling rate after heat treatment, on the microstructure and hardness. The study were carry out on samples of High Chromium Cast Iron containing 27%Cr i 2,7%C. Samples were subjected to the tempering treatment at the temperature of 950°C for 4 hours and three variants of cooling – in water, in a salt bath and on air. Examined and compared the microstructure and hardness of castings for different variants of cooling.
Źródło:
Archives of Foundry Engineering; 2015, 15, 4 spec.; 109-112
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 Different Mn/Fe Ratio on Microstructure Alloy Based on Al-Si-Mg
Autorzy:
Bolibruchova, D.
Ivanova, A.
Powiązania:
https://bibliotekanauki.pl/articles/383021.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
AlSiMg alloys
manganese
intermetallic phases
microstructure
stopy AlSiMg
mangan
fazy międzymetaliczne
mikrostruktura
Opis:
This article deals with the effect of manganese that is the most applied element to eliminate the negative effect of iron in the investigated alloy AlSi7Mg0.3. In this time are several methods that are used for elimination harmful effect of iron. The most used method is elimination by applying the additive elements, so-called iron correctors. The influence of manganese on the morphology of excluded iron-based intermetallic phases was analysed at various iron contents (0.4; 0.8 and 1.2 wt. %). The effect of manganese was assessed in additions of 0.1; 0.2; 0.4 and 0.6 wt. % Mn. The morphology of iron intermetallic phases was assessed using electron microscopy (SEM) and EDX analysis. The increase of iron content in investigated alloys caused the formation of more intermetallic phases and this effect has been more significant with higher concentrations of manganese. The measurements carried out also showed that alloys with the same Mn/Fe ratio can manifest different structures and characteristics of excluded iron-based intermetallic phases, which might, at the same time, be related to different resulting mechanical properties.
Źródło:
Archives of Foundry Engineering; 2019, 3; 15-20
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Chemical Composition on Structure and Corrosion Resistance of Ni-Mn-Cu Cast Iron
Autorzy:
Medyński, D.
Janus, A.
Powiązania:
https://bibliotekanauki.pl/articles/383110.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
corrosion
martensitic transformation
austenitic cast iron
Ni-Mn-Cu cast iron
nickel equivalent
korozja
przemiana martenzytyczna
żeliwo austenityczne
żeliwo Ni-Mn-Cu
Opis:
In the paper, a relationship between chemical composition of Ni-Mn-Cu cast iron and its structure, hardness and corrosion resistance is determined. The examinations showed a decrease of thermodynamic stability of austenite together with decreasing nickel equivalent value, in cast iron solidifying according to both the stable and the metastable systems. As a result of increasing degree of austenite transformation, the created martensite caused a significant hardness increase, accompanied by small decline of corrosion resistance. It was found at the same time that solidification way of the alloy and its matrix structure affect corrosion resistance to a much smaller extent than the nickel equivalent value, in particular concentration of elements with high electrochemical potential.
Źródło:
Archives of Foundry Engineering; 2016, 16, 3; 59-62
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Cr, Mo and Al on Structure and Selected Mechanical Properties of Austenitic Cast Iron
Autorzy:
Medyński, D.
Janus, A.
Powiązania:
https://bibliotekanauki.pl/articles/383202.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
austenitic cast iron
austenite transformation
heat treatment
cast
mechanical properties of cast
nickel equivalent
żeliwo austenityczne
zmiana właściwości
obróbka cieplna
odlew
właściwości mechaniczne odlewu
Opis:
Results of a research on influence of chromium, molybdenum and aluminium on structure and selected mechanical properties of Ni-Mn- Cu cast iron in the as-cast and heat-treated conditions are presented. All raw castings showed austenitic matrix with relatively low hardness, making the material machinable. Additions of chromium and molybdenum resulted in higher inclination to hard spots. However, a small addition of aluminium slightly limited this tendency. Heat treatment consisting in soaking the castings at 500 °C for 4 h resulted in partial transformation of austenite to acicular, carbon-supersaturated ferrite, similar to the bainitic ferrite. A degree of this transformation depended not only on the nickel equivalent value (its lower value resulted in higher transformation degree), but also on concentrations of Cr and Mo (transformation degree increased with increasing total concentration of both elements). The castings with the highest hard spots degree showed the highest hardness, while hardness increase, caused by heat treatment, was the largest in the castings with the highest austenite transformation degree. Addition of Cr and Mo resulted in lower thermodynamic stability of austenite, so it appeared a favourable solution. For this reason, the castings containing the highest total amount of Cr and Mo with an addition of 0.4% Al (to reduce hard spots tendency) showed the highest tensile strength.
Źródło:
Archives of Foundry Engineering; 2019, 4; 39-44
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Abrasive-wear Resistance of Austenitic Cast Iron
Autorzy:
Medyński, D.
Janus, A.
Powiązania:
https://bibliotekanauki.pl/articles/380382.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
abrasive wear
austenitic cast iron
heat treatment
nickel equivalent
transformation of austenite
zużycie ścierne
żeliwo austenityczne
obróbka cieplna
nikiel
transformacja austenitu
Opis:
A research of wear resistance of an austenitic cast iron with higher resistance to abrasive-wear and maintained corrosion resistance characteristic for Ni-Resist cast iron is presented. For the examination, structure of raw castings was first formed by proper selection of chemical composition (to make machining possible). Next, a heat treatment was applied (annealing at 550 °C for 4 hours followed by air cooling) in order to increase abrasive-wear resistance. One of the factors deciding intensity of wear appeared to be the chilling degree of castings. However, with respect to unfavourable influence of chilling on machining properties, an important factor increasing abrasive-wear resistance is transformation of austenite to acicular ferrite as a result of annealing non-chilled castings. Heat treatment of non-chilled austenitic cast iron (EquNi > 16%) resulted in much higher abrasive-wear resistance in comparison to the alloy having pearlitic matrix at ambient temperature (EquNi 5.4÷6.8%).
Źródło:
Archives of Foundry Engineering; 2018, 18, 3; 43-48
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:
Effect of Austenite Transformation on Abrasive Wear and Corrosion Resistance of Spheroidal Ni-Mn-Cu Cast Iron
Autorzy:
Medyński, D.
Janus, A.
Powiązania:
https://bibliotekanauki.pl/articles/381837.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
abrasive wear
corrosion resistance
austenitic cast iron
Ni-Mn-Cu cast iron
martensitic transformation
odporność na korozję
żeliwo austenityczne
żeliwo Ni-Mn-Cu
przemiana martenzytyczna
Opis:
Within the presented work, the effect of austenite transformation on abrasive wear as well as on rate and nature of corrosive destruction of spheroidal Ni-Mn-Cu cast iron was determined. Cast iron contained: 3.1÷3.4 %C, 2.1÷2.3 %Si, 2.3÷3.3 %Mn, 2.3÷2.5 %Cu and 4.8÷9.3 %Ni. At a higher degree of austenite transformation in the alloys with nickel equivalent below 16.0%, abrasive wear resistance was significantly higher. Examinations of the corrosion resistance were carried out with the use of gravimetric and potentiodynamic method. It was shown that higher degree of austenite transformation results in significantly higher abrasive wear resistance and slightly higher corrosion rate, as determined by the gravimetric method. However, results of potentiodynamic examinations showed creation of a smaller number of deep pinholes, which is a favourable phenomenon from the viewpoint of corrosion resistance.
Źródło:
Archives of Foundry Engineering; 2016, 16, 3; 63-66
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of the Moulding Process of Bentonite-Bonded Green Sand
Autorzy:
Abdulamer, D.
Kaduaw, A.
Powiązania:
https://bibliotekanauki.pl/articles/1837740.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
green sand mould
moulding processes
COMSOL multiphysics
time-dependent study
Opis:
Finite Element Method FEM via commercially available software has been used for numerical simulation of the compaction process of bentonite-bonded sand mould. The mathematical model of soil plasticity which involved Drucker-Prager model match with Mohr Coulomb model was selected. The individual parameters which required for the simulation process were determined through direct shear test based on the variation of sand compactability. The novelty of this research work is that the individual micro-mechanical parameters were adopted depend on its directly proportional to the change of sand density during the compaction process. Boundary conditions of the applied load, roller and fixed constraint were specified. An extremely coarse mesh was used and the solution by time-dependent study was done for investigation of material-dependent behaviour of green sand during the compaction process. The research implemented also simulation of the desired points in sand mould to predict behaviour of moulding process, and prevent failure of the sand mould. Distance dependent displacement and distance-dependent pressure have been determined to investigate the effective moulding parameters without spent further energy and cost for obtaining green sand mould. The obtained numerical results of the sand displacement show good agreement with the practical results.
Źródło:
Archives of Foundry Engineering; 2021, 21, 1; 67-73
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Simulation of the Moulding Process of Bentonite-Bonded Green Sand
Autorzy:
Abdulamer, D.
Kaduaw, A.
Powiązania:
https://bibliotekanauki.pl/articles/1837861.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
green sand mould
moulding processes
COMSOL multiphysics
time-dependent study
Opis:
Finite Element Method FEM via commercially available software has been used for numerical simulation of the compaction process of bentonite-bonded sand mould. The mathematical model of soil plasticity which involved Drucker-Prager model match with Mohr Coulomb model was selected. The individual parameters which required for the simulation process were determined through direct shear test based on the variation of sand compactability. The novelty of this research work is that the individual micro-mechanical parameters were adopted depend on its directly proportional to the change of sand density during the compaction process. Boundary conditions of the applied load, roller and fixed constraint were specified. An extremely coarse mesh was used and the solution by time-dependent study was done for investigation of material-dependent behaviour of green sand during the compaction process. The research implemented also simulation of the desired points in sand mould to predict behaviour of moulding process, and prevent failure of the sand mould. Distance dependent displacement and distance-dependent pressure have been determined to investigate the effective moulding parameters without spent further energy and cost for obtaining green sand mould. The obtained numerical results of the sand displacement show good agreement with the practical results.
Źródło:
Archives of Foundry Engineering; 2021, 21, 1; 67-73
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Multimetal Stahl 1018 Composite – Structure and Strength Properties
Autorzy:
Kalisz, D.
Arustmian, A.
Powiązania:
https://bibliotekanauki.pl/articles/1840916.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
composite Stahl 1018
strength properties
hardness
impact strength
yield point
kompozyt Stahl 1018
właściwości wytrzymałościowe
twardość
siła uderzenia
granica plastyczności
Opis:
The series of experiments was performed on commercial polymeric composite material MultimetalStahl 1018. Strength tests were performed to determine the yield point of the material. The composite had the highest hardness at a temperature of 20°C. Hardness and microhardness were determined in further experiments. The adhesiveness of the material to metal surfaces and impact strength were also analyzed. The scanning electron microscopy and X-ray microanalysis methods were used for analyzing the microstructure of the material. Chemical composition of selected areas was analyzed, which allowed for a preliminary identification of metallic elements content in the composite. The microstructure of composite is highly non-homogeneous and particular phases are highly elongated and angular. The analyzed phase was enriched with silicon, aluminium, magnesium, iron and vanadium other phases enriched with metallic elements, e.g. molybdenum, titanium, vanadium and also oxygen as well as traces of cadmium and chromium. The results were presented in the form of photos and illustrations. The results confirmed the applicability of the composite as a binder for fixing mechanical and foundry devices.
Źródło:
Archives of Foundry Engineering; 2020, 20, 4; 77-82
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Althoff-Radtke Test Adapted for High Chromium Cast Iron
Autorzy:
Kopyciński, D.
Siekaniec, D.
Szczęsny, A.
Sokolnicki, M.
Nowak, A.
Powiązania:
https://bibliotekanauki.pl/articles/382642.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
mechanical properties
casting defect
hot crack
high chromium cast iron
właściwości mechaniczne
wada odlewu
pęknięcie gorące
żeliwo wysokochromowe
Opis:
The paper presents results of the possibility of adapting the Althoff-Radtke test for High Chromium Cast Iron. The Althoff-Radtke test is a clump attempt used for steel. The Althoff-Radtke test has four different lengths of clamp which qualifies it as a test to quantitatively take into account different kinds of shrinkage ΔL. The length of the slot of the cracked corner and the length of each staple (50 - 350 mm) are the parameters tendency to cast cracks. Castings of white cast iron have a high tendency to hot cracking due to the large range of solidification temperatures, unfavorable kinetics parameters of shrinkage, and especially a lack of expansion before shrinkage. Shrinkage of high chromium white cast iron is similar to the shrinkage of cast steel, and is approximately 2%. Therefore it is important to test susceptibility to hot cracks. Research was carried out under industrial conditions. Four melts were performed, one of the initial chemical composition and the other three modified by different amounts of Fe-Ti, respectively, 0.25%, 0.5% and 0.75% Fe-Ti. The propensity for hot cracking was based on the observation of the dark surface in the corner of the sample. The study shows that the Althoff-Radtke test can be adapted to determine the tendency for hot cracking of high chromium cast iron. It should however be noted that the test results can not be compared with those for other alloys.
Źródło:
Archives of Foundry Engineering; 2016, 16, 4; 61-64
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Dilatometric Research of High-quality Nodular Cast Iron
Autorzy:
Medyński, D.
Janus, A.
Powiązania:
https://bibliotekanauki.pl/articles/380654.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
alloy cast iron
austenitic cast iron
dilatometric research
martensitic transformation
nickel equivalent
żeliwo stopowe
żeliwo austenityczne
badania dylatometryczne
przemiana martenzytyczna
ekwiwalent niklowy
Opis:
In the research, relationships between matrix structure and hardness of high-quality Ni-Mn-Cu cast iron containing nodular graphite and nickel equivalent value were determined. Nickel equivalent values were dependent on chemical composition and differences between them resulted mostly from nickel concentration in individual alloys. Chemical compositions of the alloys were selected to obtain, in raw condition, austenitic and austenitic-martensitic cast iron. Next, stability of matrix of raw castings was determined by dilatometric tests. The results made it possible to determine influence of nickel equivalent on martensite transformation start and finish temperatures.
Źródło:
Archives of Foundry Engineering; 2018, 18, 2; 163-168
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Nickel Equivalent on Structure and Corrosion Resistance of Nodular Cast Iron Ni-Mn-Cu
Autorzy:
Medyński, D.
Janus, A.
Powiązania:
https://bibliotekanauki.pl/articles/381447.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
austenitic nodular cast iron
cast iron Ni-Mn-Cu
nickel equivalent
martensitic transformation
corrosion
żeliwo sferoidalne
żeliwo Ni-Mn-Cu
nikiel
przemiany martenzytyczne
korozja
Opis:
Within the research determined was the effect of nickel equivalent on structure, hardness and corrosion resistance of nodular cast iron Ni- Mn-Cu. The examinations revealed a drop of thermodynamic stability of austenite along with decreasing nickel content. Along with in-creasing degree of austenite transformation, the created martensite resulted in significant increase of hardness (and of abrasion resistance as well) of the examined of cast iron, accompanied by insignificant decrease of corrosion resistance.
Źródło:
Archives of Foundry Engineering; 2015, 15, 1 spec.; 69-74
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-15 z 86

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