Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Abrasive wear" wg kryterium: Temat


Tytuł:
Abrasive wear of AlSi12-Al2O3 Composite materials manufac tired by pressure infiltration
Autorzy:
Kremzer, M.
Dziekońska, M.
Sroka, M.
Tomiczek, B.
Powiązania:
https://bibliotekanauki.pl/articles/354917.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
abrasive wear
composite materials
pressure infiltration
Opis:
The aim of this study is to investigate tribological properties of EN AC-AlSi12 alloy composite materials matrix manufactured by pressure infiltration of Al2O3 porous preforms. In the paper, a technique of manufacturing composite materials was described in detail as well as wear resistance made on pin on disc was tested. Metallographic observations of wear traces of tested materials using stereoscopic and confocal microscopy were made. Studies allow concluding that obtained composite materials have much better wear resistance than the matrix alloy AlSil2. It was further proved that the developed technology of their preparation consisting of pressure infiltration of porous ceramic preforms can find a practical application.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 3; 1255-1260
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of Wear Resistance in Polycrystalline and Monocrystalline Iron
Autorzy:
Liu, Zhiming
Zhang, Qiang
Liu, Fangying
Zhang, Hezhe
Powiązania:
https://bibliotekanauki.pl/articles/2203723.pdf
Data publikacji:
2023
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
molecular dynamics
polycrystalline
centro symmetric analysis
abrasive wear
Opis:
In the present research, we used molecular dynamics simulation to determine the effect of cutting parameters on micro-grain boundary structures and Burgers vector distribution in single crystal iron and polycrystalline iron materials. The result showed that the destruction of the lattice in polycrystalline iron caused by the cutting tool was restricted to the contact surface area. In addition, in the precision machining process, a higher refining grain was observed on the iron surface. During the cutting process of single crystal iron, large-scale slip occurred along the <111> crystal direction on the {110} crystal plane. And the slip presented an annular shape.
Źródło:
Archives of Metallurgy and Materials; 2023, 68, 1; 15--20
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Influence of Particle Size and Load on Loss of Material in Manganese-Steel Material: an Experimental Investigation
Autorzy:
Sinha, R.
Mukhopadhyay, A. K.
Powiązania:
https://bibliotekanauki.pl/articles/354746.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Mn-steel
abrasive wear
stacking fault energy
FESEM
DOE
Opis:
The present study explores the influence of variables like particle size of coal, load, speed and sliding distance on weight loss in manganese-steel (Mn-steel). The observations are made using pin-on-disc apparatus. Specimen prepared from Mn-steel used for the wear test. The size and shape of specimen is in accordance with ASTM G99 standard. From design of experiment (DOE) procedure the variables load were altered to assess the weight loss in material. It is observed that with the increase in particle size and load, the weight loss increases when other variables are constant. Mn-steel shows decrease in weight loss at higher load due to property of dipole interaction and stacking fault energy (SFE). Decrease in weight loss at higher load results in transition in wear mechanism from scratch to groove formation as observed under field emission scanning electron microscope (FESEM).
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 1; 359-364
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Testing of flame sprayed Al2O3 matrix coatings containing TiO2
Autorzy:
Czupryński, A.
Górka, J.
Adamiak, M.
Tomiczek, B.
Powiązania:
https://bibliotekanauki.pl/articles/356108.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
flame spray process
coating
ceramic powder
abrasive wear resistance
erosion wear resistance
adhesion strength
Opis:
The paper presents the results of the properties of flame sprayed ceramic coatings using oxide ceramic materials coating of a powdered aluininiuni oxide (Al2O3) matrix with 3% titanium oxide (TiO2) applied to unalloyed S235JR grade structural steel. A primer consisting of a metallic Ni-Al-Mo based powder has been applied to plates with dimensions of 5X200X300 mm and front surfaces of ø40x50 mm cylinders. Flame spraying of primer coating was made using a RotoTec 80 torch, and an external coating was made with a CastoDyn DS 8000 torch. Evaluation of the coating properties was conducted using metallographic testing, phase composition research, measurement of microhardness, substrate coating adhesion (acc. to EN 582:1996 standard), erosion wear resistance (acc. to ASTM G76-95 standard), and abrasive wear resistance (acc. to ASTM G65 standard) and thermal impact. The testing performed has demonstrated that flame spraying with 97% Al2O3 powder containing 3% TiO2 performed in a range of parameters allows for obtaining high-quality ceramic coatings with thickness up to ca. 500 μni on a steel base. Spray coating possesses a structure consisting mainly of aluminium oxide and a small amount of NiAl10O16 and NiAl32O49 phases. The bonding primer coat sprayed with the Ni-Al-Mo powder to the steel substrate and external coating sprayed with the 97%Al2O3 powder with 3% TiO2 addition demonstrates mechanical bonding characteristics. The coating is characterized by a high adhesion to the base amounting to 6.5 MPa. Average hardness of the external coating is ca. 780 HV. The obtained coatings are characterized by high erosion and abrasive wear resistance and the resistance to effects of cyclic thermal shock.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 3; 1363-1370
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of BN or SiC Addition on PEO Properties of Coatings Formed on AZ91 Magnesium Alloy
Autorzy:
Pelczar, D.
Długosz, Piotr
Darłak, P.
Szewczyk-Nykiel, Aneta
Nykiel, Marek
Hebda, Marek
Powiązania:
https://bibliotekanauki.pl/articles/2048800.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
composite oxide film
abrasive wear resistance
corrosion behavior
scratch resistance
protective coatings
Opis:
Currently, due to the economic and ecological aspects, light alloys are increasingly important construction material, in particular in the transport industry. One of the popular foundry magnesium alloys is the alloy AZ91, which among others due to mechanical properties and technological features, is used, for example, for light structural parts. The paper presents the results of research on modification of the AZ91 alloy surface layer in the plasma electrolytic oxidation process. The change of usable properties of the produced coatings was obtained by introducing additions of silicon carbide or boron nitride. The thickness and hardness of the protective layers produced, resistance to scratches and corrosion resistance were determined. Moreover, the friction coefficient of the coating-steel pair was investigated. The quality of the connections made between the coating and the substrate, i.e. the magnesium alloy, was also evaluated. The results obtained for coatings with silicon carbide or boron nitride additives were always compared to the results obtained for unmodified samples. On the basis of the obtained results, it was shown that the introduction of boron nitride additive to the AZ91 alloy coating produced in the plasma electrolytic oxidation process significantly improves the resistance to: (i) corrosion and (ii) abrasive wear of the coating.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 1; 147-154
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Possibility Of Use Of Laser-Modified Ti6Al4V Alloy In Friction Pairs In Endoprostheses
Możliwość zastosowania modyfikowanego laserowo stopu Ti6Al4V na pary cierne endoprotez
Autorzy:
Majkowska, B.
Jażdżewska, M.
Wołowiec, E.
Piekoszewski, W.
Klimek, L.
Zieliński, A.
Powiązania:
https://bibliotekanauki.pl/articles/353034.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
laser treatment
abrasive wear
titanium
endoprostheses
obróbka laserowa
zużycie ścierne
tytan
endoprotezy
Opis:
The purpose of this paper is to show results of laser treatment at cryogenic conditions of the Ti6Al4V alloy used for orthopedic applications. That modification process ought to bring beneficial changes of microstructure and residual stresses in the surface layer. The paper presents the abrasive wear of the base and laser remelted material in association with ceramics Al2O3. Despite the surface cracking after laser treatment the tribological properties in simulated body fluid have been substantially improved.
Celem artykułu jest pokazanie rezultatów obróbki laserowej w warunkach kriogenicznych stopu Ti6Al4V używanego w aplikacjach ortopedycznych. Tego rodzaju proces modyfikacji powinien przynieść korzystne zmiany w mikrostrukturze i naprężeniach własnych warstwy wierzchniej. Artykuł prezentuje badania odporności na zużycie ścierne materiału podstawowego i nadtopionego laserowo w skojarzeniu z ceramiką Al2O3. Pomimo pęknięć na powierzchni materiału po obróbce laserowej własności tribologiczne badane w roztworze symulującym płyn ustrojowy zostały znacznie ulepszone.
Źródło:
Archives of Metallurgy and Materials; 2015, 60, 2A; 755-758
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The synergy of fatigue, corrosion and abrasive wear processes in operation of mining round link chains
Autorzy:
Remiorz, Eryk
Mikuła, Stanisław
Powiązania:
https://bibliotekanauki.pl/articles/1853909.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
pęknięcie zmęczeniowe
korozja
zużycie ścierne
round link chain
fatigue cracks
corrosion
abrasive wear
Opis:
The mutual influence of fatigue processes, abrasive wear and corrosion of chain links on the functional properties of mining round link chains has been presented in this paper. Selected results of experimental investigations in the field of synergic impact of these destructive processes on the operational durability of mining chains have also been presented. The emphasis was given to the necessity of a comprehensive consideration of destructive processes that occur in various conditions of use of round link chains applied in mining machines.
Źródło:
Archives of Mining Sciences; 2021, 66, 1; 29-42
0860-7001
Pojawia się w:
Archives of Mining Sciences
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Abrasive Wear Resistance of Chromium Cast Iron
Autorzy:
Kopyciński, D.
Piasny, S.
Kawalec, M.
Madizhanova, A.
Powiązania:
https://bibliotekanauki.pl/articles/381907.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
abrasive wear resistance
white cast iron
carbides
odporność na ścieranie
żeliwo białe
węgliki
Opis:
The resistance of cast iron to abrasive wear depends on the metal abrasive hardness ratio. For example, hardness of the structural constituents of the cast iron metal matrix is lower than the hardness of ordinary silica sand. Also cementite, the basic component of unalloyed white cast iron, has hardness lower than the hardness of silica. Some resistance to the abrasive effect of the aforementioned silica sand can provide the chromium white cast iron containing in its structure a large amount of (Cr, Fe)7C3 carbides characterised by hardness higher than the hardness of the silica sand in question. In the present study, it has been anticipated that the white cast iron structure will be changed by changing the type of metal matrix and the type of carbides present in this matrix, which will greatly expand the application area of castings under the harsh operating conditions of abrasive wear. Moreover, the study compares the results of abrasive wear resistance tests performed on the examined types of cast iron. Tests of abrasive wear resistance were carried out on a Miller machine. Samples of standard dimensions were exposed to abrasion in a double to-and-fro movement, sliding against the bottom of a trough filled with an aqueous abrasive mixture containing SiC + distilled water. The obtained results of changes in the sample weight were approximated with a power curve and shown further in the study.
Źródło:
Archives of Foundry Engineering; 2014, 14, 1; 63-66
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tribological properties of rail steel in straight moderately loaded sections of railway tracks
Właściwości tribologiczne stali szynowych w prostych odcinkach średnioobciążonych torowisk
Autorzy:
Bąkowski, H.
Posmyk, A.
Krawczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/351561.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
stale szynowe
zużycie ścierne
zużycie zmęczeniowe
bainitic rail steel
pearlitic rail steel
abrasive wear
fatigue wear
Opis:
The paper describes the examination results of tribological properties of three types of steels used and suggested for rails manufacturing. The tests concentrated on loads, sliding and rolling speeds similar to those occurring in real conditions i.e. rolling track operation. Average loaded conditions were assumed and applied at straight railway track sections. Slight track declivity and high/low speeds of locomotive were considered. "Amsler" stand was used for laboratory tests. Three types of steels i.e. two pearlitic steels: WHT - without heat treatment, HT - with heat treatment (with the microstructure of fine pearlite) as well as one bainitic steel suggested for rail production have been tested. The measurements of wear, hardness, friction coefficient as well as structural changes at surface layers of the tested rollers have been performed during the test.
W pracy opisano wyniki badań właściwości tribologicznych trzech stali stosowanych i proponowanych na szyny kolejowe. W badaniach tych stali na szyny stosowano obciążenia, poślizgi i prędkości toczenia podobne, jakie występują w warunkach rzeczywistych czyli w warunkach eksploatacji torowisk. Przyjęto warunki obciążenia występujące, jako średnio obciążone i zainstalowane na prostych odcinkach torów kolejowych przy uwzględnieniu niewielkiej pochyłości toru i przy prędkościach jazdy wagonu przy małej i dużej prędkości. Badania laboratoryjne przeprowadzono na tribotesterze " Amslera". Przebadano próbki trzech stali to jest dwie stale perlityczne - jedną z obróbką termiczną (o mikrostrukturze drobnego perlitu) a drugą bez obróbki oraz jedną stal o strukturze bainitycznej, proponowaną do wprowadzenia do produkcji szyn. W czasie badań mierzono zużycie, twardość, współczynnik tarcia oraz zmiany strukturalne w warstwach przypowierzchniowych badanych rolek wymienionych stali.
Źródło:
Archives of Metallurgy and Materials; 2011, 56, 3; 813-822
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Initial Assessment of Abrasive Wear Resistance of Austempered Cast Iron with Vermicular Graphite
Wstępna ocena odporności na ścieranie żeliwa z grafitem wermikularnym hartowanego izotermicznie
Autorzy:
Soiński, M. S.
Jakubus, A.
Powiązania:
https://bibliotekanauki.pl/articles/351080.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
cast iron
vermicular graphite
austempering
abrasive wear resistance
żeliwo
grafit wermikularny
odporność na ścieranie
hartowanie izotermiczne
Opis:
The work compares the abrasive wear resistance of cast iron containing vermicular graphite, measured in the as-cast state and after austempering carried out at 290°C, 340°C, or 390°C. Theexaminations were performed by means of the T-01M tribological tester using the pin-on-disc configuration. Specimens used for examinations were taken from the end tabs of the tensile specimens, these being cut out of the test walls of the double-leg keel block test castings. Examinations proved that the austempering process increases the abrasive wear resistance of vermicular cast iron by several times as compared with the as-cast material. A tendency for a slight decrease in abrasive wear with an increase in austempering temperature can be stated. The coefficient of friction took a little higher values for cast iron after thermal treatment than for the as-cast material. The work was completed with roughness examination by means of electron scanning microscopy.
W pracy porównano odporność na ścieranie żeliwa z grafitem wermikularnym w stanie lanym oraz po hartowaniu izotermicznym przeprowadzonym w temperaturach 290°C, 340°C i 390°C. Badaniaodporności na ścieranie przeprowadzono przy użyciu zestawu trybologicznego T-01M typu trzpień-tarcza. Próbki do badań pochodziły z próbek wytrzymałościowych wyciętych ze ścianek badawczych wlewków próbnych w kształcie odwróconej litery „U”. Badania wykazały, że poddanie żeliwa wermikularnego hartowaniu izotermicznemu prowadzi do kilkukrotnego wzrostu odporności tworzywa na ścieranie w porównaniu z żeliwem w stanie lanym. Zaobserwowano niewielki spadek zużycia wraz ze wzrostem temperatury hartowania. Współczynnik tarcia dla żeliwa po obróbce cieplej przybrał nieco większe wartości aniżeli w przypadku żeliwa w stanie lanym. W ramach pracy wykonano także badania chropowatości z wykorzystaniem mikroskopii skaningowej.
Źródło:
Archives of Metallurgy and Materials; 2014, 59, 3; 1073-1076
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Destructive Mechanisms Occurring in the Surface Layer of Forging Tools Used in Hot Forging Processes
Autorzy:
Hawryluk, M.
Zwierzchowski, M.
Marciniak, M.
Powiązania:
https://bibliotekanauki.pl/articles/354152.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
destruction mechanisms
non-lubricated forging tools
uncooled forging tools
laboratory abrasive wear
thermal fatigue test stands
Opis:
In the work was presented the results of studies concerns on the destructive mechanisms for forging tools used in the wheel forging process as well the laboratory results obtained on a specially constructed test items for testing abrasive wear and thermal fatigue. The research results of the forging tools shown that the dominant destructive mechanisms are thermal fatigue occurring in the initial the exploitation stage and abrasive wear, which occurs later, and is intensified effects of thermo-mechanical fatigue and oxidation process. In order to better analysis of phenomena associated with destructive mechanisms, the authors built a special test stands allow for a more complete analysis of each of the mechanisms separately under laboratory conditions, which correspond to the industrial forging processes. A comprehensive analysis of the forging tools confirmed by laboratory tests, showed the interaction between the thermal fatigue and abrasive wear, combined with the oxidation process. The obtained results showed that the process of oxidation and thermal fatigue, very often occur together with the mechanism of abrasive wear, creating a synergy effect. This causing the acceleration, the most visible and easily measurable process of abrasive wear.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 2; 941-952
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comprehensive Assessment of Polymeric Materials for Foundry Tooling Used in Microwave Field
Kompleksowa ocena materiałów polimerowych na oprzyrządowanie odlewnicze stosowane w polu mikrofalowym
Autorzy:
Stachowicz, M.
Opyd, B.
Granat, K.
Powiązania:
https://bibliotekanauki.pl/articles/355413.pdf
Data publikacji:
2015
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
innovative foundry technologies
microwaves
abrasive wear resistance
foundry tooling
innowacyjne technologie odlewnicze
mikrofale
odporność na ścieranie
oprzyrządowanie odlewnicze
Opis:
The paper presents a research on abrasion resistance of selected construction materials designed for foundry tooling applied in the innovative microwave heating process of moulding and core sands. One of the main selection criteria of the materials for foundry tooling, in particular for models, moulding boards, moulding boxes and core boxes, is their good abrasive wear resistance. Usability of the selected polymeric materials, designed for foundry tooling used in electromagnetic field, is decided also by other evaluation criteria determined in the examinations, like thermal resistance and electrical properties. Abrasion resistance of the selected materials was determined for three grades of the moulding sand matrixes. Combined analysis of the determined abrasion resistance, considering also electrical properties and thermal resistance of the foundry tooling materials, characterising their usability for microwave heating of moulding and core sands, will make possible their systemising with respect to effectiveness and efficiency of the heating process, taking under consideration durability of such foundry tooling to be used in industrial conditions.
W pracy zaprezentowano wyniki badań odporności na ścieranie wybranych materiałów konstrukcyjnych przeznaczonych do budowy oprzyrządowania odlewniczego przewidywanego do zastosowania w innowacyjnym procesie nagrzewania mikrofalowego mas formierskich i rdzeniowych. Jednym z głównych kryteriów doboru materiałów na elementy oprzyrządowania odlewniczego, w szczególności: modele, płyty podmodelowe, skrzynki formierskie i rdzennice, jest ich dobra odporność na zużycie ścierne. O przydatności wybranych materiałów polimerowych, przewidzianych do budowy oprzyrządowania stosowanego w polu elektromagnetycznym, decydują również, określone w badaniach, inne kryteria oceny, do których należą: odporność termiczna oraz właściwości elektryczne. Badania odporności na zużycie ścierne, wybranych materiałów oprzyrządowania, określono dla trzech różnych gatunków osnowy mas (ścierniwa). Analiza wyników oznaczenia odporności na ścieranie, powiązana z właściwościami elektrycznymi oraz odpornością termiczną materiałów oprzyrządowania, charakteryzujących ich przydatność w mikrofalowym nagrzewaniu mas formierskich i rdzeniowych, umożliwi ich usystematyzowanie pod względem skuteczności i efektywności procesu nagrzewania z jednoczesnym uwzględnieniem trwałości takiego oprzyrządowania odlewniczego dla zastosowania w warunkach przemysłowych.
Źródło:
Archives of Metallurgy and Materials; 2015, 60, 1; 335-339
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Tribological Wear of as Cast Zn-4Al Alloy Cooled at Various Rates from the Eutectoid Transformation Temperature
Autorzy:
Lachowicz, M. M.
Leśniewski, T.
Lachowicz, M. B.
Jasionowski, R.
Powiązania:
https://bibliotekanauki.pl/articles/1837868.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metallography
microstructure
heat treatment
abrasive wear
Zinc alloys
Zn-4Al
metalografia
mikrostruktura
obróbka cieplna
zużycie ścierne
stopy cynku
Opis:
The paper presents the results from a study on the impact of the cooling rate in the eutectoid transition on the abrasive wear of the as cast Zn-4Al alloy. The microstructure of the researched material consists of dendrites of the η solid solution and an (α+η) eutectic structure. During the eutectoid transformation at 275oC the distribution in the eutectic structure was transformed and fined. Heat treatment was carried out for this alloy, during which three cooling mediums were used, i.e. water, air and an furnace. For the research material obtained in this way, metallographic examinations were performed using the methods of light and scanning electron microscopy, as well as hardness measurements. It was found that faster cooling rate promoted the fragmentation of structural components, which translates into higher hardness of the material. This also had effects in the tribological wear of the tested alloy. As part of the tests, an abrasive wear test was carried out on a standard T-07 tester.
Źródło:
Archives of Foundry Engineering; 2020, 20, 4; 108-114
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Graphite Addition on the Abrasive Wear of AlMg10 Alloy Matrix Composites Reinforced with SiC Particles
Autorzy:
Łągiewka, M.
Konopka, Z.
Powiązania:
https://bibliotekanauki.pl/articles/382261.pdf
Data publikacji:
2014
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
composites
abrasive wear
hard SiC particles
hardness of composite materials
kompozyty
zużycie ścierne
twarde cząstki SiC
twardość materiałów kompozytowych
Opis:
The presented work deals with the influence of the addition of soft graphite particles on the abrasive wear of composite reinforced with hard SiC particles. The discussed hybrid composites were produced by stirring the liquid alloy and simultaneous adding the mixture of particles. The adequately prepared suspension was gravity cast into a metal die. Both the composite castings obtained in this way and the comparative castings produced of the pure matrix alloy were examined for the abrasive wear behaviour. Photomacrographs of the sliding surfaces of the examined composites were taken, and also the hardness measurements were carried out. It was found that even a small addition of Cgr particles influences positively the tribological properties of the examined composite materials, protecting the abraded surface from the destructive action of silicon carbide particles. The work presents also the results of hardness measurements which confirm that the composite material hardness increases with an increase in the volume fraction of hard reinforcing particles.
Źródło:
Archives of Foundry Engineering; 2014, 14, 3; 51-54
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Friction and Wear Properties of Plasma Sprayed YSZ/Ni-Cr-Al Coated 6063-T6 Aluminum Alloy
Autorzy:
Erzi, E.
Dispinar, D.
Yilmaz, S.
Powiązania:
https://bibliotekanauki.pl/articles/383089.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
aluminum alloy
mechanical properties
abrasive wear
plasma spraying
YSZ coating
stop aluminium
właściwości mechaniczne
zużycie ścierne
natryskiwanie
powłoka YSZ
Opis:
In this study T6 heat treated 6063 aluminum alloys were used as substrate material. In order to form a bond between the substrate and the main coating, all samples were coated with Ni-Cr-Al powders. 8 wt% Yttria Stabilized Zirconia powders (YSZ) were coated with plasma spray technique. Thickness of YSZ was 150 m and bond coating was 36 m. XRD and SEM-EDS analyses were performed to characterize the coating layers. These YSZ coated and uncoated samples were subjected to wear testing under different spindle speed, loading and working distance. Wear test results were compared with the kinetic friction coefficients and weight loss values. Wear marks on YSZ coated and uncoated samples were investigated by SEM analysis. By coating with plasma spray technique, the wear resistance of Al alloys was increased without changing the friction coefficient. It was found that spindle speed had significant effect over the wear properties than the load applied. By YSZ coating, wear properties were increased 10 times.
Źródło:
Archives of Foundry Engineering; 2017, 17, 3; 168-174
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies