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Wyszukujesz frazę "Metal Matrix Composite" wg kryterium: Temat


Tytuł:
Quality of the recovered metal matrix as a measure of the efficiency of the MMC recycling process
Autorzy:
Gawdzińska, K.
Nagolska, D.
Kochmańska, A.
Powiązania:
https://bibliotekanauki.pl/articles/359859.pdf
Data publikacji:
2013
Wydawca:
Akademia Morska w Szczecinie. Wydawnictwo AMSz
Tematy:
casting
metal matrix composite (MMC)
material recycling
Opis:
Quality of composite castings with infiltration reinforcement is dependent on many various factors. Technological parameters of the saturation process, manufacturing methods and quality of components are considered as the basic ones. During the recycling process of composite materials, the basic component that is being reclaimed is the metal matrix. The main aim of this paper is an evaluation of chemical composition and microstructure of the recovered metal matrix material. In the first stage, influence of preparation of liquid matrix metal is analyzed, with particular attention paid to its purity, degree of degassing and overheating, as well as an influence of the reinforcing material type on the final structure of composites obtained in the process of vacuum saturation. Specific of the structure and flaws occurring in such materials are of the particular concern here, as they are decisive for the methods of quality evaluation of these materials. Manufactured composite’s castings are subjected to the recycling process by a melting of the metal matrix on the second stage. The metal obtained in this way is analyzed regarding impurities occurring in its volume and, simultaneously, a comparison of evaluation methods of traditional metal alloys and metal composite castings is performed.
Źródło:
Zeszyty Naukowe Akademii Morskiej w Szczecinie; 2013, 36 (108) z. 2; 37-44
1733-8670
2392-0378
Pojawia się w:
Zeszyty Naukowe Akademii Morskiej w Szczecinie
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
Tytuł:
Processing of Porous NiTi Preforms for NiTi/Mg Composites
Autorzy:
Kucharczyk, A.
Naplocha, K.
Tomanik, M.
Powiązania:
https://bibliotekanauki.pl/articles/352563.pdf
Data publikacji:
2019
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal matrix composite
magnesium
nitinol
SHS
squeeze casting
Opis:
NiTi alloys are successfully used in engineering and medical applications because of their properties, such as shape memory effect, superelasticity or mechanical strength. A composite with Mg matrix, due to its vibration damping properties, can be characterized by low weight and good vibration damping properties. In this study, a combination of two techniques was used for successful fabrication of Mg composite reinforced by NiTi alloy preform. The porous preforms synthesized by Self-propagating Hightemperature Synthesis (SHS) from elemental powders were subsequently infiltrated with Mg by squeeze casting. The effects were examined with scanning electron microscope with EDS detector, X-ray diffraction and microindentation. The inspection has shown well-connected matrix and reinforcement; no reaction at the interface and open porosities fully infiltrated by liquid Mg. Moreover, analysis of samples’ fracture has exhibited that crack propagates inside the Mg matrix and there is no detachment of reinforcement.
Źródło:
Archives of Metallurgy and Materials; 2019, 64, 2; 747-752
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Production of Melt-Spun Al-20Si-5Fe Alloy and Boron Carbide (B4C) Composite Material
Autorzy:
Kilicaslan, M. F.
Uzun, A.
Karakose, E.
Powiązania:
https://bibliotekanauki.pl/articles/353146.pdf
Data publikacji:
2018
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal matrix composite
rapid solidification
Al-Si alloys
Opis:
In this study, metal matrix composite materials containing melt-spun Al-20Si-5Fe alloys and boron carbide was produced by high energy ball milling and then hot pressing at 200 MPa pressure and 450°C. Mechanical and microstructural characterizations were performed by using an optical microscopy, X-Ray diffractometer, and dynamic microhardness tester. It was observed that boron carbide particles were homogenously distributed in the microstructure and values of microhardness and elastic modules were averagely 830 MPa and 42 GPa, respectively.
Źródło:
Archives of Metallurgy and Materials; 2018, 63, 2; 597-600
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Investigation of SiC Particle Size Variation on the Tribological Properties of Cu-6Sn-SiC Composite
Autorzy:
Shankar, K. V.
Chandroth, A. M.
Ghosh, K. J. A.
Sudhin, C. B.
Pai, A. S.
Biju, A.
Sriram, K. R.
Powiązania:
https://bibliotekanauki.pl/articles/1840832.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
CuSn
SiC
metal matrix composite
wear
tribological properties
Opis:
Copper have always been an important material and incorporation of elements into copper for property enhancement. Bronze is a relevant cuprous alloy which is important for many industrial and automotive applications like bearings and machineries. The present research is directed towards the fabrication and tribological analysis of regular bronze (Cu-6Sn) and metal matrix composites reinforced with varying particle sized SiC ceramic reinforcement (30, 35 and 40 μm). The developed specimens were subjected to wear analysis according to ASTM standards, to identify the tribological properties utilizing a pin on disk tribometer. It was noted that the wear rates of developed MMC’s phenomenally decremented with an increase in size of SiC particle reinforcement. Also, the test parameters were influential in altering the wear rates to notable margins. The standard scanning electron microscopy techniques aided in identifying the influence of adhesive wear on the specimen surface.
Źródło:
Archives of Foundry Engineering; 2020, 20, 4; 133-138
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Copper-Carbon Nanoforms Composites - Processing, Microstructure and Thermal Properties
Autorzy:
Pietrzak, K.
Gładki, A.
Frydman, K.
Wójcik-Grzybek, D.
Strojny-Nędza, A.
Wejrzanowski, T.
Powiązania:
https://bibliotekanauki.pl/articles/350995.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal matrix composite
sintering
copper
graphene
thermal diffusivity
Opis:
The main current of publication is focused around the issues and problems associated with the formation of composite materials with Cu matrix and reinforcing phases in the various carbon nanoforms. The core of the research has been focused on thermal conductivity of these composites types. This parameter globally reflects the state of the structure, quality of raw materials and the technology used during the formation of composite materials. Vanishingly low affinity of copper for carbon, multilayered forms of graphene, the existence of critical values of graphene volume in the composite are not conducive to the classic procedures of composites designing. As a result, the expected, significant increase in thermal conductivity of composites is not greater than for pure copper matrix. Present paper especially includes: (i) data of obtaining procedure of copper/graphene mixtures, (ii) data of sintering process, (iii) the results of structure investigations and of thermal properties. Structural analysis revealed the homogenous distribution of graphene in copper matrix, the thermal analysis indicate the existence of carbon phase critical concentration, where improvement of thermal diffusivity to pure copper can occur.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2B; 1307-1310
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Effect of Boron and Tungsten Carbides on the Properties of TiC-Reinforced Tool Steel Matrix Composite Produced by Powder Metallurgy
Autorzy:
Slokar Benić, Ljerka
Šubić, Jadranko
Erman, Žiga
Powiązania:
https://bibliotekanauki.pl/articles/355244.pdf
Data publikacji:
2020
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal matrix composite
steel/TiC composite
powder metallurgy
properties
microstructure
Opis:
The influence of boron carbide and tungsten carbide on the apparent porosity, density, coercive force, hardness and micro-structure of metal matrix composite of the Ferro-TiC type, is presented in this paper. The samples of investigated steel/titanium carbide composite were produced by powder metallurgy process, i.e. by powders mixing and compacting followed by sintering in the vacuum furnace. According to the results, steel/titanium carbide composite materials with addition up to 11.9 vol.% of boron carbide are interesting to detailed investigation as well as materials having more than 17.2 vol.% of tungsten carbide because these compositions show significant changes in hardness and coercive force values.
Źródło:
Archives of Metallurgy and Materials; 2020, 65, 2; 539-547
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Structural Properties and Mechanical Behavior of the 2 Step-Reinforced Al-Si/SiCp Metal Matrix Composite by Titanium-Fiber
Autorzy:
Oak, J.-J.
Lee, Y. C.
Park, Y. H.
Powiązania:
https://bibliotekanauki.pl/articles/356010.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal matrix composite
sintering
Ti fiber
mechanical properties
diffusion
Opis:
In this study, the newly designed Al-9Si/SiC particles (SiCp) + Ti-fiber (2step-reinforced Al-9Si alloy matrix) metal matrix composites (MMCs) were fabricated by hot-pressing sintering at 560°C. 2step-reinforced Al-based MMCs were characterized by thermal shrinkage, phase transition, microstructure and tensile strength. The addition of Ti-fiber reduced thermal shrinkage was caused by temperature difference in sintering process as well as enhanced assistance for tensile strength and plastic deformation at room temperature. Experimental results reveal that the 2step-reinforcment sintering by ceramic and metal has a significant effect to increase interface bonding in boundary of each component material and the improved mechanical properties were due to the influence of interfacial product by diffusion. Tensile strength and elongation at room temperature by 2step-reinforcement were improved in 19.5% and 26.2% more than those of Al-9Si/SiCp, respectively. Especially, it reveals that diffusion direction may be varied by sintering methods at low temperature in this study.
Źródło:
Archives of Metallurgy and Materials; 2017, 62, 2B; 1089-1097
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Characterisation of Microstructure of We43 Magnesium Matrix Composites Reinforced with Carbon Fibres
Autorzy:
Gryc, A.
Rzychoń, T.
Powiązania:
https://bibliotekanauki.pl/articles/352456.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal matrix composite
magnesium
WE43
carbon fibre
heat treatment
Opis:
In the paper the microstructures of WE43 matrix composites reinforced with carbon fibres have been characterised. The influence of reinforcement type and T6 heat treatment (a solution treatment at 525°C for 8 h, a hot water quench and a subsequent ageing treatment at 250°C for 16 h) on microstructure have been evaluated. The light microscope and scanning electron microscope investigations have been carried out. No significant differences in samples reinforced with non-coated textiles have been reported. The substantial changes in sample reinforced with nickel-coated textile have been observed. The segregation of alloying elements to the matrix-reinforcement layer has been identified. The T6 heat treatment caused the appearance of disperse precipitates of β phase, but the process cannot be considered as satisfactory (irregular distribution, low volume fraction, relatively large size).
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 2B; 1075-1081
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
The Microstructure of WE43 MMC Reinforced with SiC Particles
Autorzy:
Dybowski, B.
Rzychoń, T.
Chmiela, B.
Gryc, A.
Powiązania:
https://bibliotekanauki.pl/articles/356597.pdf
Data publikacji:
2016
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal matrix composite
WE43 matrix
SiC Reinforcement
microstructure
interface
mechanical properties
Opis:
It is well known that the properties of a metal matrix composites depend upon the properties of the reinforcement phase, of the matrix and of the interface. A strong interface bonding without any degradation of the reinforcing phase is one of the prime objectives in the development of the metal matrix composites. Therefore, the objective of this work is to characterize the interface structure of WE43/SiC particles composite. Magnesium alloys containing yttrium and neodymium are known to have high specific strength, good creep and corrosion resistance up to 250°C. The addition of SiC ceramic particles strengthens the metal matrix composite resulting in better wear and creep resistance while maintaining good machinability. In the present study, WE43 magnesium matrix composite reinforced with SiC particulates was fabricated by stir casting. The SiC particles with 15 μm, 45 μm and 250 μm diameter were added to the WE43 alloy. The microstructure of the composite was investigated by optical microscopy, scanning electron microscopy, scanning transmission electron microscopy and XRD analysis. YSi and Y2Si reaction products are observed at the interfaces between SiC particles and WE43 matrix in the composite stirred at 780°C. Microstructure characterization of WE43 MMC with the 45 μm, stirred at 720°C showed relative uniform reinforcement distribution. Moreover, the Zr-rich particles at particle/matrix interface were visible instead of Y-Si phases. In the case of composite with 15 μm particles the numerous agglomerates and reaction products between SiC particles and alloying elements were observed. The presence of SiC particles assisted in improving hardness and decreasing the tensile strength and plastic properties.
Źródło:
Archives of Metallurgy and Materials; 2016, 61, 1; 393-398
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental investigation and modelling of hot forming B₄C/AA6061 low volume fraction reinforcement composites
Autorzy:
Zheng, K.
Lin, J.
Wu, G.
Hall, R. W.
Dean, T. A.
Powiązania:
https://bibliotekanauki.pl/articles/280433.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Mechaniki Teoretycznej i Stosowanej
Tematy:
Metal Matrix Composite (MMC)
hot compression
AA6061
B₄C
dislocation
Opis:
This paper presents an experimental investigation of the hot deformation behaviour of 15% B₄C particle reinforced AA6061 matrix composites and the establishment of a novel corresponding unified and physically-based visco-plastic material model. The feasibility of hot forming of a metal matrix composite (MMC) with a low volume fraction reinforcement has been assessed by performing hot compression tests at different temperatures and strain rates. Examination of the obtained stress-strain relationships revealed the correlation between temperature and strain hardening extent. Forming at elevated temperatures enables obvious strain rate hardening and reasonably high ductility of the MMC. The developed unified material model includes evolution of dislocations resulting from plastic deformation, recovery and punching effect due to differential thermal expansion between matrix and reinforcement particles during non-steady state heating and plastic straining. Good agreement has been obtained between experimental and computed results. The proposed material model contributes greatly to a more thorough understanding of flow stress behaviour and microstructural evolution during the hot forming of MMCs.
Źródło:
Journal of Theoretical and Applied Mechanics; 2018, 56, 2; 457-469
1429-2955
Pojawia się w:
Journal of Theoretical and Applied Mechanics
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Model zużycia tribologicznego odlewanych kompozytów stop aluminium-cząstki ceramiczne pracujących w warunkach tarcia technicznie suchego
Composites materials reinforced ceramic particles wear model during dry sliding condition
Autorzy:
Wieczorek, J.
Powiązania:
https://bibliotekanauki.pl/articles/190045.pdf
Data publikacji:
2010
Wydawca:
Stowarzyszenie Inżynierów i Techników Mechaników Polskich
Tematy:
kompozyty metalowe
współczynnik tarcia
zużycie
metal matrix composite
friction coefficient
wear
Opis:
Kompozyty na osnowie stopów aluminium wzmacniane cząstkami ceramicznymi SiC znajdują zastosowanie w budowie węzłów tarcia wykorzystywanych w przemyśle maszynowym, lotniczym oraz samochodowym. Rozmieszczenie cząstek zbrojących w osnowie, ich udział objętościowy, kształt oraz wielkość determinują strukturę, a zatem i właściwości materiału. W artykule przedstawiono możliwości kształtowania rozmieszczenia cząstek w odlewie poprzez zastosowanie odlewania ciśnieniowego. Badaniami objęto kompozyty na osnowie stopu AK12 zbrojonego cząstkami SiC o wielkości 10 žm, 25 žm, 50 žm oraz ich mieszaniną. Właściwości tribologiczne, w skojarzeniu żeliwo-kompozyt, badano w warunkach tarcia technicznie suchego, wykorzystując tester T-01. Na podstawie przeprowadzonych badań mikroskopowych i profilografometrycznych powierzchni kompozytów AK12-SiC po współpracy opisano zależność pomiędzy wielkością cząstek zbrojących a geometrią warstwy wierzchniej kompozytu. Przeprowadzone badania pozwoliły na opracowanie modelu zużycia tribologicznego kompozytu w zależności od wielkości cząstek zbrojących.
Aluminium based metal matrix composites are well known for their good wear and erosion resistance, high specific strength, stiffness and hardness. They have found applications within the aerospace, military but especially in the automotive industries. The distribution of particles, their size and shape, and volume fraction together with production method determine the structure and properties of the composite. Trials of pressure die casting of AK12-15%SiC were carried out using a cold-chamber pressure machine of pressure force 100 t, in PRESS company, Poland. The article presents the results of the research on composites MMC's reinforced SiC particles after mating in technically dry sliding conditions. Matrix alloy composites AK12 reinforced with SiC particles (10, 25, 50 |im) were tested after collaboration with cast iron. The friction coefficient value and wear resistance in investigated MMCs depend on particle size used as a reinforcement. The friction coefficient and wear value decrease with the reduction of particles diameter.
Źródło:
Tribologia; 2010, 6; 177-185
0208-7774
Pojawia się w:
Tribologia
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Laser Cutting of MMC Castings – Preliminary Selection of Process Parameters
Autorzy:
Nagolska, D.
Krajcarz, J.
Powiązania:
https://bibliotekanauki.pl/articles/380575.pdf
Data publikacji:
2013
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal matrix composite
composite casting
laser cutting
kompozyt metalowy
odlew kompozytowy
cięcie laserowe
Opis:
Composite materials gain more and more applications thanks to their specific properties and possibilities of shaping of products made out of them. One of the product forming technologies is cutting. Although most metal matrix composites are ready for use after volume shaping e.g. by casting, it is worth to define also possibilities of processing these materials also by this technology. This paper presents possibilities of cutting metal matrix composites and compares existing methods and their application range. The laser cutting of metal matrix composites reinforced with hard ceramic fiber was of particular interest in this work. Preliminary process parameters were determined and quality of obtained cut edges was compared with basic material of the aluminum matrix. This comparison proved that presence of reinforcement negatively affects the quality of the cut surface. However, the laser cutting process is efficient and it allows elastic shaping of metal matrix composites reinforced with hard ceramics.
Źródło:
Archives of Foundry Engineering; 2013, 13, 1 spec.; 125-130
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Comparison of various tool wear prediction methods during end milling of metal matrix composite
Autorzy:
Wiciak, M.
Twardowski, P.
Wojciechowski, S.
Powiązania:
https://bibliotekanauki.pl/articles/94174.pdf
Data publikacji:
2018
Wydawca:
Politechnika Poznańska. Wydawnictwo Politechniki Poznańskiej
Tematy:
tool wear
diagnosis
milling
metal matrix composite
zużycie narzędzi
diagnoza
kompozyt metalowy
Opis:
In this paper, the problem of tool wear prediction during milling of hard-to-cut metal matrix composite Duralcan™ was presented. The conducted research involved the measurements of acceleration of vibrations during milling with constant cutting conditions, and evaluation of the flank wear. Subsequently, the analysis of vibrations in time and frequency domain, as well as the correlation of the obtained measures with the tool wear values were conducted. The validation of tool wear diagnosis in relation to selected diagnostic measures was carried out with the use of one variable and two variables regression models, as well as with the application of artificial neural networks (ANN). The comparative analysis of the obtained results enabled the selection of the most effective tool wear prediction method.
Źródło:
Archives of Mechanical Technology and Materials; 2018, 38; 1-7
2450-9469
Pojawia się w:
Archives of Mechanical Technology and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Application of capillary hysteresis phenomenon for evaluation of recycling possibility of selected MMC
Autorzy:
Nagolska, D.
Gawdzińska, K.
Powiązania:
https://bibliotekanauki.pl/articles/382242.pdf
Data publikacji:
2011
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
metal matrix composite
saturated reinforcement
reinforcement preform
kompozyt metalowy
zbrojenie nasycone
kształtka
Opis:
Properties of composites made through saturation of ceramic reinforcement preforms with liquid metal are the cause of growing use of these materials. Taking increasing requirements regarding environment protection into consideration, already during design of such materials one should think of a way of their recycling at the end of life. The recycling of these materials is conducted by separation of components. Determining optimal superficial conditions of a recycling system: liquid metal matrix – reinforcement preform – medium enables automatic course of the recycling process, but does not guarantee high yield of metal. With identical superficial conditions of the recycling system and different structure of reinforcement preforms significant differences in metal yield can be obtained. Identification of a type of a capillary present in reinforcement preforms may allow to determine, already during stage of material design, which types of composites will undergo the recycling process better and for which types one has to accept decreased yield of matrix metal. This identification can be done on the basis of an analysis of results obtained during examination conducted with mercury porosimetry, comparing acquired hysteresis graphs with model graphs proposed by de Boer for adsorbent analysis. Considering the analysis of image of structure of examined reinforcement preforms makes the identification process easier and faster.
Źródło:
Archives of Foundry Engineering; 2011, 11, 3 spec.; 145-150
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł

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