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Wyszukujesz frazę "mechanical wear resistance" wg kryterium: Temat

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    Wyświetlanie 1-5 z 5
    Tytuł:
    Modifikacija struktury i mekhanicheskikh svojjstv stali ponizhennojj pokalivaemosti pri impul'snom zakalochnom okhlazhdenii zhidkost'ju
    Modification of the structure and mechanical properties of steel lower hardenability at pulse hardening liquid cooling
    Autorzy:
    Betenja, G.
    Aniskovich, G.
    Powiązania:
    https://bibliotekanauki.pl/articles/77869.pdf
    Data publikacji:
    2013
    Wydawca:
    Komisja Motoryzacji i Energetyki Rolnictwa
    Tematy:
    steel
    toughness
    mechanical property
    wear resistance
    hardenability
    nanocrystalline structure
    Źródło:
    Motrol. Motoryzacja i Energetyka Rolnictwa; 2013, 15, 7
    1730-8658
    Pojawia się w:
    Motrol. Motoryzacja i Energetyka Rolnictwa
    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:
    The Effect of Sintering Time on Wear Resistance of Silicon Nitride
    Autorzy:
    Gábrišová, Zuzana
    Brusilová, Alena
    Švec, Pavol
    Powiązania:
    https://bibliotekanauki.pl/articles/102803.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    silicon nitride
    microstructure
    mechanical properties
    wear resistance
    azotek krzemu
    mikrostruktura
    właściwości mechaniczne
    odporność na ścieranie
    Opis:
    The effect of sintering time on the chosen mechanical and tribological properties of silicon nitride (Si3N4) with 5 wt.% of yttrium aluminium garnet (Y3Al5O12) ceramics was investigated. The Si3N4 ceramics sintered for shorter time contained a larger portion of untransformed a-Si3N4 phase which has higher hardness compared to the tougher β-Si3N4 phase. The fracture toughness of Si3N4 ceramics increased with the prolongation of its sintering time. The microcutting wear mechanisms predominated during the grinding of the Si3N4 ceramics with the Al2O3 abrasives. The hardness of ceramic material had a great effect on its wear resistance. The wear of ceramics at friction with 18Cr-8Ni type of austenitic stainless steels was several times higher compared to friction with 14Cr type of ferritic stainless steel. Under these conditions, the microcracking wear mechanisms predominated.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 2; 145-154
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    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:
    Effect of Mechanical Properties on Wear Resistance of Si3 N4 – SiC Ceramic Composite
    Autorzy:
    Gábrišová, Zuzana
    Švec, Pavol
    Brusilová, Alena
    Powiązania:
    https://bibliotekanauki.pl/articles/102248.pdf
    Data publikacji:
    2020
    Wydawca:
    Stowarzyszenie Inżynierów i Techników Mechaników Polskich
    Tematy:
    silicon nitride
    strengthening phases
    microstructure
    mechanical properties
    wear resistance
    azotek krzemu
    faza wzmacniająca
    mikrostruktura
    właściwości mechaniczne
    odporność na zużycie
    Opis:
    The effect of mechanical properties on wear resistance of Si3 N4 – SiC composite materials with different portions of SiC strengthening phase was investigated. Properties of monolithic silicon nitride were compared to ceramic composites consisting of Si3 N4 matrix with 10 and 20 vol.% SiC. The SiC strengthening phase had a positive effect on the hardness of Si3 N4 – SiC ceramic composite materials. Wear resistance of tested ceramic materials was mainly influenced by their fracture toughness. The highest wear resistance value was achieved for material with the highest fracture toughness. Worn surfaces of all experimental ceramic materials were damaged by both microcutting and microcracking mechanism. Microcracking was the predominant wear mechanism mainly at ceramic composites. The wear resistance of SiC-Si3 N4 ceramic composites can be described by the model W ~ HV/KIC.
    Źródło:
    Advances in Science and Technology. Research Journal; 2020, 14, 4; 156-167
    2299-8624
    Pojawia się w:
    Advances in Science and Technology. Research Journal
    Dostawca treści:
    Biblioteka Nauki
    Artykuł
      Wyświetlanie 1-5 z 5

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