- Tytuł:
- Prediction of Microstructure of Grey Cast Irons by Electrical Resistivity Measurements
- Autorzy:
-
Petrič, M.
Mrvar, P.
Kastelic, S. - Powiązania:
- https://bibliotekanauki.pl/articles/354044.pdf
- Data publikacji:
- 2019
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
solidification
grey cast iron
electrical resistivity
graphite shape
microstructure - Opis:
- The paper describes the influence of graphite shape, size and amount to electrical properties of different cast irons. Experiments of electrical resistivity measurements were conducted during solidification of four different melts in different time intervals from melt treatment by inoculation and nodularization. Metallographic analyses were made in order to determine the shape, size, distribution and amount of graphite and correlate results with electrical resistivity measurements. It was found out that nodular graphite is giving the lowest electrical resistivity and is decreased during solidification. Electrical resistivity of lamellar cast iron is increased during solidification since lamellas interrupt metal matrix severely. There is no significant difference in resistivity of vermicular cast iron from nodular cast iron. Smaller size of graphite and lower amount of graphite and higher amount of metal matrix also decrease resistivity.
- Źródło:
-
Archives of Metallurgy and Materials; 2019, 64, 1; 365-369
1733-3490 - Pojawia się w:
- Archives of Metallurgy and Materials
- Dostawca treści:
- Biblioteka Nauki
Artykuł