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Tytuł:
Effect of Severe Plastic Deformation on Wear Properties of Aluminum Matrix Composites
Autorzy:
Karademir, I.
Unal, O.
Ates, S.
Gokce, H.
Gok, M.
Powiązania:
https://bibliotekanauki.pl/articles/1032037.pdf
Data publikacji:
2017-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.-t
Opis:
The influence of severe plastic deformation on wear properties of Al-5wt.%Grp and Al-5wt.%B₄Cp reinforced aluminum matrix composites was studied. Al matrix composites were produced by solid state processing via powder metallurgy route that provides good incorporation and distribution of the reinforcement particles in the matrix. Wear tests were performed by dry sliding using a pin on disk wear tester. Scanning electron microscope was used to examine worn surfaces to study the wear mechanism. Severely deformed specimens exhibited better wear resistance due to the increase of surface hardness of both Al-5wt.%Grp and Al-5wt.%B₄Cp composites. Al-B₄Cp reinforced composite has higher hardness value through the excellent hardness of B₄C particulates. Al-Grp reinforced composites exhibited better wear resistance due to the solid lubricant effect of Gr particulates.
Źródło:
Acta Physica Polonica A; 2017, 131, 3; 487-489
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Grey-Based Taguchi Method: Optimisation of Drilling of Hybrid Aluminum Matrix Composites
Autorzy:
Ay, M.
Altunpak, Y.
Hartomacioğlu, S.
Powiązania:
https://bibliotekanauki.pl/articles/1032046.pdf
Data publikacji:
2017-03
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.-t
Opis:
The aim of this study was to investigate the influence of cutting parameters and effect of graphite rate on cutting force and surface roughness in drilling of Al/20%SiC/5%Gr, Al/20%SiC/7.5%Gr and Al /20%SiC/10%Gr hybrid composites, fabricated by vortex method. The drilling tests are conducted with diamond-like-carbon coated cutting tools. The Grey relational analysis based Taguchi optimization method was selected to determine the optimum cutting conditions. The results show that the spindle speed (4500 rpm), the rate of graphite (10%) and feed (0.1 mm/rev) were found to be significant parameters for surface roughness and cutting force. The predicted values from the developed model and experimental values are found to be very similar in this study.
Źródło:
Acta Physica Polonica A; 2017, 131, 3; 551-554
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Mechanical Properties of Aluminum-Matrix-Nanoparticle Composites
Autorzy:
Kazakewitsch, A.
Riehemann, W.
Powiązania:
https://bibliotekanauki.pl/articles/1418512.pdf
Data publikacji:
2012-09
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
61.82.Rx
62.40.+i
81.05.-t
81.05.Ni
81.07.Wx
81.20.Ev
81.20.Hy
81.40.Ef
81.70.-q
81.70.Bt
Opis:
Aluminum-matrix-nanoparticle composites were produced by ball milling of micro scale aluminum powder with different additions of 500 nm mean diameter SiC particles in air atmosphere with subsequent consolidation by hot extrusion. The material was investigated in this condition by tensile testing, hot tensile testing, density, hardness, and amplitude dependent damping measurements. The amplitude dependent damping of the material was investigated after slow furnace heating and cooling as after quenching into water to the room temperature. The results of the tensile and hot tensile testing show that the addition of SiC particles lead to a significant increase of tensile strength, but the remaining porosity increased, too. The results obtained for the amplitude dependent damping can be attributed to cracks present in the consolidated material or cracks produced by thermal stresses.
Źródło:
Acta Physica Polonica A; 2012, 122, 3; 516-519
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Stan powierzchni kompozytów Al po obróbce elektroerozyjnej
Surface conditions of aluminum matrix composites after the electrical discharge machining
Autorzy:
Perończyk, J.
Biało, D.
Pracki, M.
Duszczyk, J.
Powiązania:
https://bibliotekanauki.pl/articles/269890.pdf
Data publikacji:
2011
Wydawca:
Wrocławska Rada Federacji Stowarzyszeń Naukowo-Technicznych
Tematy:
WEDM
wycinanie elektroerozyjne
kompozyty
chropowatość
struktura geometryczna powierzchni
wire electrical machining
composites
roughness
geometric structure of the surface
Opis:
W artykule przedstawiono wyniki badań struktury stereometrycznej po obróbce elektroerozyjnej (WEDM) osnowy z Al20Si1Mg i na jej bazie utworzonych kompozytów umacnianych cząstkami ceramicznymi Al2O3, SiC lub Si3N4 o zawartości 5% objętościowo. Osnowa i kompozyty wytworzone były metodami metalurgii proszkowej P/M i obrabiane WEDM przy dwóch nastawach: E2 i E7. Przedstawiono stereometryczne obrazy powierzchni próbek po WEDM oraz liniowe wykresy chropowatości. Uzyskane wyniki liczbowe szeregu parametrów, charakteryzujących stereometrię powierzchni obrobionej, pozwoliły na sformułowanie szeregu wniosków i spostrzeżeń dotyczących odmienności tej struktury w stosunku do struktur powstających po obróbce WEDM metali i ich stopów.
The results of investigation into surface texture after the WEDM process have been presented for the composites on a matrix Al20Si1Mg and reinforced by 5% volume of ceramic particles Al2O3, SiC or Si3N4. The matrix and the composites have been developed by powder metallurgy technology and they were subjected to the WEDM process for two technological regime settings E2 and E7. Stereometric images of the obtained sample surface as well as roughness profiles have been presented. The obtained digital results for a range of parameters featuring machined surface stereometry made it possible to draw numerous conclusions as to the difference of such structure compared to other structure formed after the WEDM process for other metals and their alloys.
Źródło:
Inżynieria Maszyn; 2011, R. 16, z. 3; 88-95
1426-708X
Pojawia się w:
Inżynieria Maszyn
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Influence of Process Parameters of EDM on the Surface Roughness of Aluminum Matrix Composites Reinforced with SiC Particulates
Autorzy:
Feray Guleryuz, L.
Ozan, S.
Kasman, S.
Ipek, R.
Powiązania:
https://bibliotekanauki.pl/articles/1399967.pdf
Data publikacji:
2013-02
Wydawca:
Polska Akademia Nauk. Instytut Fizyki PAN
Tematy:
81.05.Ni
81.20.Ev
81.20.Wk
Opis:
This paper investigates the effect of electrical discharge machining parameters on the surface roughness as an alternative method for machining of $Al//SiC_{p}$ metal matrix composites produced with the powder metallurgy. Current, electrode type, pulse-on-time, particle reinforcement weight ratio and voltage were used as the process parameters. An experimental plan $(L_{18})$ was constituted by using the Taguchi orthogonal design. Results of experiments showed that pulse-on-time (34%) and current (31.26%) is the most influencing parameters. Besides this, the percentage contribution of particle reinforcement on the surface roughness is 6.71%.
Źródło:
Acta Physica Polonica A; 2013, 123, 2; 421-423
0587-4246
1898-794X
Pojawia się w:
Acta Physica Polonica A
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Wetting Agent and Carbide Volume Fraction on the Wear Response of Aluminum Matrix Composites Reinforced by WC Nanoparticles and Aluminide Particles
Autorzy:
Lekatou, A.
Gkikas, N.
Karantzalis, A. E.
Kaptay, G.
Gacsi, Z.
Baumli, P.
Simon, A.
Powiązania:
https://bibliotekanauki.pl/articles/353829.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Al-WC
nanocomposites
aluminides
wetting agent
ball-on-disk
Opis:
Aluminum matrix composites were prepared by adding submicron sized WC particles into a melt of Al 1050 under mechanical stirring, with the scope to determine: (a) the most appropriate salt flux amongst KBF4 , K2 TiF6 , K3 AlF6 and Na3 AlF6 for optimum particle wetting and distribution and (b) the maximum carbide volume fraction (CVF) for optimum response to sliding wear. The nature of the wetting agent notably affected particle incorporation, with K2 TiF6 providing the greatest particle insertion. A uniform aluminide (in-situ) and WC (ex-situ) particle distribution was attained. Two different sliding wear mechanisms were identified for low CVFs (≤1.5%), and high CVFs (2.0%), depending on the extent of particle agglomeration.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2B; 1235-1242
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
O tłumieniu drgań w materiałach kompozytowych
On the damping capacity of composite materials
Autorzy:
Pietrzak, K.
Klasik, A.
Makowska, K.
Sobczak, J. J.
Wojciechowski, A.
Rudnik, D.
Powiązania:
https://bibliotekanauki.pl/articles/391694.pdf
Data publikacji:
2012
Wydawca:
Sieć Badawcza Łukasiewicz - Instytut Odlewnictwa
Tematy:
kompozyty aluminiowe
łumienie drgań
przetapianie
recykling
aluminum matrix composites
damping capacity
remelting
recycling
Opis:
Opracowanie dotyczy zdolności do tłumienia drgań kompozytów o osnowie stopu aluminium A359 zbrojonych 10%, 20% i 30% cząsteczek SiCp poddanych wielokrotnemu przetopowi. Celem badań było wykazanie, że recykling symulowany wielokrotnym przetopem nie zmienia istotnie charakterystyk tłumiących badanych materiałów. Na podstawie uzyskanych wyników można stwierdzić, że specyfika powierzchni międzyfazowej SiCp/ osnowa kompozytu stanowi główny czynnik wpływający na charakterystyki tłumiące kompozytów. Jednocześnie należy podkreślić, że właściwości powierzchni międzyfazowej SiCp/ osnowa kompozytu zależą od metody wytwarzania. Otrzymane wyniki potwierdzają potencjalne możliwości wprowadzenia do praktycznych rozwiązań przemysłowych recyklingu realizowanego prostą i ekonomicznie efektywną metodą wielokrotnego przetapiania. Należy jednak skupić wysiłki na minimalizacji porowatości gazowo-skurczowej podczas kolejnych procesów odlewania, aby nie dopuścić do pogorszenia charakterystyk mechanicznych.
The study adresses the problem of the damping capacity of metal matrix composites based on A359 alloy reinforced with 10%, 20% and 30% SiCp, subjected to multiple remelting. The aim of the research was to prove that the recycling process simulated by multiple remelting does not significantly change the damping characteristics of the investigated materials. Based on the results obtained it was possible to ascertain that the specific character of the SiCp/ metal matrix interface is the main feature affecting the damping capacity of these materials. At the same time, it should be stressed that the properties of the SiCp/ metal matrix interface depend greatly on the manufacturing method. Strong bond produced between the reinforcing phase and composite matrix guarantees optimum mechanical characteristics at the expense of reduced damping capacity. The results confirm the potential possibilities of introducing to industrial practice the solution offered by the recycling process, which is a simple and economically effective method carried out by multiple remelting. However, efforts should focus on minimization of gas-shrinkage porosity during the successive casting operations to avoid the deterioration of mechanical characteristics.
Źródło:
Prace Instytutu Odlewnictwa; 2012, 52, 4; 53-96
1899-2439
Pojawia się w:
Prace Instytutu Odlewnictwa
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Adding Iron Powder From Plasma Cutting on the Microstructure, Mechanical Properties of the Composite Based on Aluminum Powder Matrix Made Using Powder Metallurgy
Autorzy:
Wędrychowicz, M.
Bydałek, A. W.
Migas, P.
Skrzekut, T.
Noga, P.
Madej, P.
Kałasznikow, A.
Powiązania:
https://bibliotekanauki.pl/articles/2049543.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
Al-Fe composite
iron powder
plasma cutting
aluminum matrix composites
powder metallurgy
mechanical properties
Opis:
The paper presents the results of research on the effect of added iron powder from plasma cutting on the mechanical properties and structure of a composite rod based on aluminum powder. The iron powder came from plasma cutting of steel elements and was handed over by the enterprise “AK Anatol” from Żary. One of the ways to dispose of it is to use it as a filler in aluminum composite rods. Research shows that Fe can be distributed in aluminum evenly, and increase in mechanical properties is achieved at the expense of only a slight increase in density. The proposed system does not reduce the amount of waste produced by plasma cutting but finds a use for some of it. The sintering point of the powder required a strongly reducing atmosphere (Po2 < 10-50 atm) which seems virtually unachievable under laboratory conditions. The reinforcing mechanism is related to the fragmentation of the matrix aggregate particles and the uniform distribution of Fe particles in the aluminum matrix.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 1; 273-279
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Effect of Power Ultrasound on Microstructure Evolution During the Transient Liquid Stage of Ultrasonic-Promoted TLP Bonding SiCp/Al MMCs
Autorzy:
Zhou, Changzhuang
Ma, Lin
Zhu, Chao
Cui, Qinghe
Liang, Jindi
Song, Yujian
Powiązania:
https://bibliotekanauki.pl/articles/2174569.pdf
Data publikacji:
2022
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
transient liquid phase bonding
silicon carbide reinforced aluminum matrix composites
ultrasonics
zinc interlayer
Opis:
Ultrasound-promoted transient liquid phase bonding (U-TLP) is a high quality, high efficiency, and low-cost method for fast bonding of difficult-wetting materials in the atmospheric environment. In this paper, U-TLP was used to bond SiC particles reinforced aluminium-based metal matrix composite which particle volume fraction was 70%. The pure zinc foil was used as the intermediate layer. The effects of ultrasonic on microstructure evolution and mechanical properties of joints during the transient liquefaction stage were investigated. The mechanism of ultrasonic effects in the transient liquefaction stage of U-TLP was also inducted. The results showed that high volume fraction SiCp/Al MMCs were bonded well at low temperature in the air environment. Ultrasonic vibration can remove the oxide film on the surface of aluminum matrix composites, enhance the wettability of SiC particles with weld metal, promote atomic diffusion and homogenization of SiC particles, and improve the welding quality and efficiency. Reasonable increase of ultrasonic vibration time could effectively improve the joint strength.
Źródło:
Archives of Metallurgy and Materials; 2022, 67, 4; 1283--1291
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Aluminum Metal Matrix Composites with SiC, Al2O3 and Graphene – Review
Autorzy:
Aybarc, U.
Dispinar, D.
Seydibeyoglu, M. O.
Powiązania:
https://bibliotekanauki.pl/articles/380332.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
SiC
Al2O3
graphene
aluminum metal matrix composite
metal matrix composite
grafen
kompozyt osnowy metalowej
kompozyt metalowy
Opis:
Light weight, low density with high mechanical properties and corrosion resistance, aluminum is the most important material and is commonly used for high performance applications such as aerospace, military and especially automotive industries. The researchers who participate in these industries are working hard to further decrease the weight of end products according to legal boundaries of greenhouse gases. A lot of research was undertaken to produce thin sectioned aluminum parts with improved mechanical properties. Several alloying element addition were investigated. Yet, nowadays aluminum has not met these expectations. Thus, composite materials, particularly metal matrix composites, have taken aluminum’s place due to the enhancement of mechanical properties of aluminum alloys by reinforcements. This paper deals with the overview of the reinforcements such as SiC, Al2O3 and graphene. Graphene has recently attracted many researcher due to its superior elastic modulus, high fatigue strength and low density. It is foreseen and predicted that graphene will replace and outperform carbon nanotubes (CNT) in near future.
Źródło:
Archives of Foundry Engineering; 2018, 18, 2; 5-10
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Wyświetlanie 1-10 z 20

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