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Wyświetlanie 1-2 z 2
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:
Microstructural and Mechanical Characterization of Solidified Austenitic Stainless Steels
Autorzy:
Celik, A. G.
Polat, S.
Atapek, S. H.
Haidemenopoulos, G. N.
Powiązania:
https://bibliotekanauki.pl/articles/380707.pdf
Data publikacji:
2017
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
theory of crystallization
Thermo-Calc
metallography
microstructure
tribology
stal nierdzewna
stal austenityczna
zestalenie
badanie mikrostrukturalne
badanie trybologiczne
oprogramowanie
Opis:
Among the family of stainless steels, cast austenitic stainless steels (CASSs) are preferably used due to their high mechanical properties and corrosion resistance. These steels owe their properties to their microstructural features consisting of an austenitic matrix and skeletal or lathy type δ-ferrite depending on the cooling rate. In this study, the solidification behavior of CASSs (304L and 316L grades) was studied using ThermoCalc software in order to determine the solidification sequence and final microstructure during cooling. Theoretical findings were supported by the microstructural examinations. For the mechanical characterization, not only hardness measurements but also tribological studies were carried out under dry sliding conditions and worn surfaces were examined by microscopy and 3D profilometric analysis. Results were discussed according to the type and amount of microstructural features.
Źródło:
Archives of Foundry Engineering; 2017, 17, 3; 163-167
1897-3310
2299-2944
Pojawia się w:
Archives of Foundry Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-2 z 2

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