Informacja

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

English (EN)·Polski (PL)·Yкраїнський (UK)
Przejdź do strony domowej biblioteki Centralna Biblioteka Wojskowa Link otwiera się w nowym oknie Logo biblioteki Prolib Integro - strona głównaCentralna Biblioteka Wojskowa

Wyszukujesz frazę "mechanical wear" wg kryterium: Temat

  Lista filtrów
Wyrównaj
    Wyświetlanie 1-11 z 11
    Tytuł:
    Experimental Investigation of Microstructure, Mechanical and Wear Characteristics of Cu-Ni/ZrC Composites Synthesized through Friction Stir Processing
    Autorzy:
    Velmurugan, T.
    Subramanian, R.
    Priyadharshini, G. Suganya
    Raghu, R.
    Powiązania:
    https://bibliotekanauki.pl/articles/351128.pdf
    Data publikacji:
    2020
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Cu-Ni/ZrC composite
    Friction Stir Processing
    mechanical properties
    wear
    Opis:
    Friction Stir Process (FSP) was employed to develop Cupro-Nickel/Zirconium Carbide (Cu-Ni/ZrC) surface composites. Five different groove widths ranging from 0 to 1.4 mm were made in CuNi alloy plate to incorporate different ZrC volume fraction (0, 6, 12, 18 and 24 %) to study its influence on the structure and properties of Cu-Ni/ZrC composite. Processing was performed at a Tool Rotational Speed (TRS) of 1300 rpm, Tool Traverse Speed (TTS) of 40 mm/min with a constant axial load of 6 KN. The study is performed to analyse the influence of ZrC particles and the volume fraction of ZrC particles on the microstructural evolution, microhardness, mechanical properties, and tribological characteristics of the Cu-Ni/ZrC composite. The fracture and worn-out surfaces are analysed using Field Emission Scanning Electron Microscope (FESEM) to identify the fracture and wear mechanisms. The results demonstrated a simultaneous increase in microhardness and tensile strength of the developed composite because of grain refinement, uniform dispersion, and excellent bonding of ZrC with the matrix. Besides, the wear resistance increases with increase in volume fraction of ZrC particles in the composite. The surface morphology analysis revealed that the wear mechanism transits from severe wear regime to mild wear regime with increase in volume fraction of ZrC particles.
    Źródło:
    Archives of Metallurgy and Materials; 2020, 65, 2; 565-574
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Analysis of the OCHN3MFA steel in terms of cutting forces and cutting material flank wear mechanisms in hard turning processes
    Autorzy:
    Majerík, Jozef
    Barényi, Igor
    Pokorný, Zdenek
    Sedlák, Josef
    Neumann, Vlastimil
    David, Dobrocký
    Jaroš, Aleš
    Krbata, Michal
    Jambor, Jaroslav
    Kusenda, Roman
    Sagan, Miroslav
    Procházka, Jiri
    Powiązania:
    https://bibliotekanauki.pl/articles/2086873.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mechanical properties
    microstructural analysis
    cutting forces
    flank wear
    crater wear
    właściwości mechaniczne
    analiza mikrostrukturalna
    siły tnące
    Opis:
    This article deals with the effect of selected machining parameter values in hard turning of tested OCHN3MFA steel in terms of SEM microstructural analysis of workpiece material, cutting forces, long-term tests, and SEM observations of flank wear VB and crater wear KT of used changeable coated cemented carbide cutting inserts in the processes of performed experiments. OCHN3MFA steel was selected as an experimental (workpiece) material. The selected experimental steel was analyzed prior to hard turning tests to check the initial microstructure of bulk material and subsurface microstructure after hard turning and chemical composition. Study of workpiece material’s microstructure and worn cemented carbide cutting inserts was performed with Tescan Vega TS 5135 scanning electron microscope (SEM) with the X-Ray microanalyzer Noran Six/300. The chemical composition of workpiece material was analyzed with Tasman Q4 surface analyzer. All hard turning experiments of the used specimens were performed under the selected machining parameters in the SU 50A machine tool with the 8th selected individual geometry of coated cementite carbide cutting inserts clamped in the appropriate DCLNR 2525M12-M type of cutting tool holder. During the hard turning technological process of the individual tested samples made of OCHN3MFA steel, cutting forces were measured with a Kistler 9257B piezoelectric dynamometer, with their subsequent evaluation using Dynoware software. After the long-term testing, other experiments and results were also realized, evaluating the influence of selected machining parameters with different cutting insert geometry on the achieved surface quality.
    Źródło:
    Bulletin of the Polish Academy of Sciences. Technical Sciences; 2021, 69, 6; e139203, 1--8
    0239-7528
    Pojawia się w:
    Bulletin of the Polish Academy of Sciences. Technical Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Effect of Powder Grain Size and Titania Content on Mechanical and Tribological Properties of Plasma Sprayed AL2O3-TiO2 Ceramic Coatings
    Autorzy:
    Góral, A.
    Żórawski, W.
    Powiązania:
    https://bibliotekanauki.pl/articles/355219.pdf
    Data publikacji:
    2019
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Al2O3-TiO2 coating
    nanostructures
    mechanical properties
    wear resistance
    Opis:
    In this work, three ceramic composite coatings Al2O3-3TiO2 C, Al2O3-13TiO2 C, and Al2O3-13TiO2 N were plasma sprayed on steel substrates. They were deposited with two conventional powders differing the volume fraction of TiO2 and nanostructured powder. The mechanical and tribological properties of the coatings were investigated and compared. The increase in TiO2 content from 3 wt.% to 13 wt.% in the conventional feedstock improved the mechanical properties and abrasion resistance of coatings. However, the size of the used powder grains had a much stronger influence on the properties of deposited coatings than the content of the titania phase. The Al2O3-13TiO2 coating obtained from nanostructured powder revealed significantly better properties than that plasma sprayed using conventional powder, i.e. 22% higher microhardness, 19% lower friction coefficient, and over twice as good abrasive wear resistance. In turn, the Al2O3-13TiO2 conventional coating showed an increase in microhardness and abrasive wear resistance, 36% and 43%, respectively, and 6% higher coefficient of friction compared to the Al2O3-3TiO2 conventional coating.
    Źródło:
    Archives of Metallurgy and Materials; 2019, 64, 1; 45-53
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structural, Mechanical and Tribological Properties of Spark Plasma Sintered Ti6Al4V Alloy
    Autorzy:
    Mróz, A.
    Grabiec, D.
    Wielowiejska-Giertuga, A.
    Wiśniewski, T.
    Gierzyńska-Dolna, M.
    Matyła, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/353018.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    Ti6Al4V alloy
    spark plasma sintering
    mechanical properties
    friction and wear properties
    Opis:
    The influence of spark plasma sintering parameters on the structural, mechanical and tribological characteristics of the Ti6Al4V alloy, which is used as implant material in biomedical engineering, was investigated. The experimental data confirm that full density and attractive mechanical properties can be obtained using the spark plasma sintering method. Tribological tests, performed in dry conditions, allowed the authors to indicate the most suitable sintering parameters. The material characterized by the highest wear resistance was selected for further tribological testing in articulation with UHMWPE in simulated body fluids. Although the weight of the polymeric material articulating against the sintered Ti6Al4V was slightly higher compared to the UHMWPE articulating against the reference material (Ti6Al4V rod), the friction coefficient was lower.
    Źródło:
    Archives of Metallurgy and Materials; 2016, 61, 2A; 665-670
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    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
    Tytuł:
    Effect of Titanium Inoculation on Tribological Properties of High Chromium Cast Iron
    Autorzy:
    Siekaniec, D.
    Kopyciński, D.
    Szczęsny, A.
    Guzik, E.
    Tyrała, E.
    Nowak, A.
    Powiązania:
    https://bibliotekanauki.pl/articles/381416.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    mechanical properties
    high chromium cast iron
    wear resistance
    titanium inoculation
    właściwości mechaniczne
    żeliwo wysokochromowe
    odporność na zużycie
    inokulacja tytanu
    Opis:
    The present investigation focuses on the study of the influence of titanium inoculation on tribological properties of High Chromium Cast Iron. Studies of tribological properties of High Chromium Cast Iron, in particularly the wear resistance are important because of the special application of this material. High Chromium Cast Iron is widely used for parts that require high wear resistance for example the slurry pumps, brick dies, several pieces of mine drilling equipment, rock machining equipment, and similar ones. Presented research described the effects of various amounts of Fe-Ti as an inoculant for wear resistance. The results of wear resistance were collated with microstructural analysis. The melts were conducted in industrial conditions. The inoculation was carried out on the stream of liquid metal. The following amount of inoculants have been used; 0.17% Fe-Ti, 0.33% Fe-Ti and 0.66% Fe-Ti. The tests were performed on the machine type MAN. The assessment of wear resistance was made on the basis of the weight loss. The experimental results indicate that inoculation improve the wear resistance. In every sample after inoculation the wear resistance was at least 20% higher than the reference sample. The best result, thus the smallest wear loss was achieved for inoculation by 0.66% Fe-Ti. There is the correlation between the changing in microstructure and wear resistance. With greater amount of titanium the microstructure is finer. More fine carbides do not crumbling so quickly from the matrix, improving the wear resistance.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 4; 143-146
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Influence of the hard-faced layer welded on tangential-rotary pick operational part on to its wear rate
    Wpływ warstwy napawanej części roboczej noża styczno-obrotowego na szybkość jego zużycia
    Autorzy:
    Krauze, K.
    Skowronek, T.
    Mucha, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/219040.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    noże styczno-obrotowe
    mechaniczne urabianie skał
    zużycie ścierne
    napawanie
    tangential-rotary picks
    mechanical rock mining
    abrasive wear
    pad welding
    Opis:
    Problems related with abrasive wear of tangential-rotary picks during cutting process and its limitations, have been discussed in the present study. Essential for the parameters of cutting process geometrical, kinematic and material parameters of tangential-rotary picks and types of their wear, have been discussed. Testing procedure in aspect of the wear of tangential-rotary picks and their durability estimation, has been described. Manners of the abrasion of pick body and pick edge of the tangential-rotary picks, have been determined. Particular attention was paid to procedure of hard facing of the pick operational part and its influence onto mining process. Results of examination of tangential-rotary picks with hard facing layer on operational part near insert made of abrasion sintered carbide are also cited.
    W artykule przedstawiono problemy związane z zużyciem ściernym noży styczno-obrotowych podczas procesu frezowania oraz sposoby jego ograniczenia. Omówiono istotne ze względu na proces skrawania parametry geometryczne, kinematyczne i materiałowe noży styczno-obrotowych oraz rodzaje ich zużycia. Przedstawiona została metoda prowadzenia badań noży w aspekcie szybkości ich zużycia oraz oceny ich trwałości. Przedstawiono sposoby zwiększania odporności na ścieranie korpusów jak i ostrzy noży styczno-obrotowych. Głównie skupiono się na metodzie związanej z napawaniem części roboczej noża oraz jej wpływem na proces urabiania. Przedstawione zostały również wyniki badań noży styczno-obrotowych z wykonaną na części roboczej napoiną w pobliżu wkładki z węglika spiekanego materiałem odpornym na ścieranie.
    Źródło:
    Archives of Mining Sciences; 2016, 61, 4; 779-792
    0860-7001
    Pojawia się w:
    Archives of Mining Sciences
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Tribological Characterization of Al-bronzes Used as Mold Materials
    Autorzy:
    Atapek, Ş. H.
    Aktaş Çelik, G.
    Polat, Ş.
    Pisarek, B.
    Powiązania:
    https://bibliotekanauki.pl/articles/383212.pdf
    Data publikacji:
    2017
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    wear resistant
    aluminium bronze
    mechanical properties
    tribological properties
    tribocorrosion resistance
    zużycie ścierne
    brąz aluminiowy
    właściwości mechaniczne
    właściwości trybologiczne
    odporność tribokorozyjna
    Opis:
    Among the copper based alloys, Cu-Al-X bronzes are commonly used as mold materials due to their superior physical and chemical properties. Mold materials suffer from both wear and corrosion, thus, it is necessary to know which one of the competitive phenomenon is dominant during the service conditions. In this study, tribo-corrosion behavior of CuAl10Ni5Fe4 and CuAl14Fe4Mn2Co alloys were studied and electrochemical measurements were carried out using three electrode system in 3.5 % NaCl solution in order to evaluate their corrosion resistance. In tribo-corrosion tests, alloys were tested against zirconia ball in 3.5 % NaCl solution, under 10N load with 0.04 m/s sliding speed during 300 and 600 m. The results indicate that (i) CuAl10Ni5Fe4 alloy is more resistant to NaCl solution compared to CuAl14Fe4Mn2Co alloy that has major galvanic cells within its matrix, (ii) although CuAl10Ni5Fe4 alloy has lower coefficient of friction value, it suffers from wear under dry sliding conditions, (iii) as the sliding distance increases, corrosion products on CuAl14Fe4Mn2Co surface increase at a higher rate compared to CuAl10Ni5Fe4 leading to a decrease in volume loss due to the lubricant effect of copper oxides.
    Źródło:
    Archives of Foundry Engineering; 2017, 17, 4; 7-12
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Structures of the EL-Hard Padding Welds as a Function of the Abrasive Wear Resistance
    Autorzy:
    Napiórkowski, J.
    Konat, Ł.
    Pękalski, G.
    Kołakowski, K.
    Powiązania:
    https://bibliotekanauki.pl/articles/381810.pdf
    Data publikacji:
    2013
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    wear resistant alloy
    padding weld layer
    operational characteristics
    mechanical properties
    structural properties
    stop odporny na ścieranie
    charakterystyka eksploatacyjna
    właściwości mechaniczne
    właściwości strukturalne
    Opis:
    In this work we report the phase structures of the EL-Hard padding weld layers and their effect on their abrasive wear resistance. The application of light and electron scanning microscopy examinations revealed subtle differences in the structures of the padding welds which affect their strength and usable properties. Abrasive wear resistance tests utilizing a “spinning bowl” method performed in real soil masses and hardness tests showed a close relationship between the abrasive wear resistance values and chemical composition of the tested padding welds. The obtained results are explained by the presence of the carbide - forming elements such as B, Cr, Mo, Nb, V and W in the chemical composition and types of the carbide phases present in the structures of the EL-Hard padding welds.
    Źródło:
    Archives of Foundry Engineering; 2013, 13, 1 spec.; 73-82
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Abrasion Wear Behavior of High-chromium Cast Iron
    Autorzy:
    Pokusová, M.
    Brúsilová, A.
    Šooš, L'.
    Berta, I.
    Powiązania:
    https://bibliotekanauki.pl/articles/382053.pdf
    Data publikacji:
    2016
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    wear resistant alloys
    mechanical properties
    high chromium cast iron
    abrasion resistance
    stopy odporne na zużycie
    właściwości mechaniczne
    żeliwo wysokochromowe
    odporność na ścieranie
    Opis:
    High-chromium cast irons are used as abrasion resistant materials. Their wear resistance depends on quantity of carbides and the matrix supporting these carbides. The paper presents the results of cast irons of chemical composition (in wt. %) 19–22 Cr and 2–4.5 C alloyed by 1.7 Mo + 5 Ni + 2 Mn to improve their toughness, which were tested in working conditions of ferroalloys crushing. Tests showed that these as-cast chromium cast irons with mostly austenitic matrix achieved the hardness of 38-45 HRC, but their relative abrasion resistance Ψ ranged from 1.3 to 4.6, was higher comparing to the tool made from the X210Cr12 steel heat treated on hardness 61 HRC. The transformation of austenite into martensite occurs not only at the worn strained areas (on a surface of scratch) but also in their neighbourhood. Due to the work hardening of relatively large volumes of transformed austenite the cast iron possesses high abrasion resistance also on the surfaces where low pressures are acting. The tough abrasion-resistant cast iron well proved for production of dynamic and wear stressed castings e.g., crusher hammers, cutting tools for ceramic etc.
    Źródło:
    Archives of Foundry Engineering; 2016, 16, 2; 69-74
    1897-3310
    2299-2944
    Pojawia się w:
    Archives of Foundry Engineering
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
    Tytuł:
    Investigation of Tribological and Mechanical Properties of Biodegradable AZ91 Alloy Produced by Cold Chamber High Pressure Casting Method
    Autorzy:
    Urtekin, Levent
    Arslan, Recep
    Bozkurt, Fatih
    Er, Ümit
    Powiązania:
    https://bibliotekanauki.pl/articles/2049430.pdf
    Data publikacji:
    2021
    Wydawca:
    Polska Akademia Nauk. Czytelnia Czasopism PAN
    Tematy:
    die casting
    AZ91 magnesium alloy
    cold chamber high pressure casting method
    mechanical properties of AZ91 magnesium alloy
    wear of AZ91 alloy
    tribological properties of AZ91 alloy
    Opis:
    In this study, AZ91 Magnesium alloy is produced by cold chamber high pressure die casting (HPDC) method. Different combinations of the cold chamber HPDC process parameters were selected as; in-mold pressure values of 1000 bar and 1200 bar, the gate speed of 30 m/s and 45 m/s, the casting temperatures of 640°C and 680°C. In addition, the test samples were produced by conventional casting method. Tensile test, hardness test, dry sliding wear test and microstructure analysis of samples were performed. The mechanical properties of the samples produced by the cold chamber HPDC and the conventional casting method were compared. Using these parameters; the casting temperature 680°C, in-mold pressure 1000 bar and the gate speed 30 m/s, the highest tensile strength and the hardness value were obtained. Since the cooling rate in the conventional casting method is slower than that of the cold chamber HPDC method, high mechanical properties are obtained by the formation of a fine-grained structure in the cold chamber HPDC method. In dry sliding wear tests, it was observed that there was a decrease in friction coefficient and less material loss with the increase of hardness values of the sample produced by the cold chamber HPDC method.
    Źródło:
    Archives of Metallurgy and Materials; 2021, 66, 1; 205-216
    1733-3490
    Pojawia się w:
    Archives of Metallurgy and Materials
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-11 z 11

      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