- Tytuł:
- Measurement of Phase Transformation Kinetics in Austempered Ductile Iron
- Autorzy:
-
Tyrała, E.
Górny, M.
Kawalec, M. - Powiązania:
- https://bibliotekanauki.pl/articles/379659.pdf
- Data publikacji:
- 2013
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
austempered ductile iron
phase transformation
dilatometry
żeliwo sferoidalne ausferrytyczne
przemiana fazowa
dylatometria - Opis:
- The kinetics reaction occurring during the austempering treatment of ductile iron containing different concentration of Cu and Ni was studied. The samples were subjected to heat treatment in dilatometry equipment. In addition to that Vickers hardness measurements and metallographic investigations were performed. The exponential equation was used to describe the isothermal transformation processes. The dilatometric studies indicate that the addition of copper in contrast to the addition of copper and nickel does not significantly affect incubation time of austempering transformation. It has been shown that austermpering process is characterized by different transformation rate. In the initial range the addition of copper, and even in a greater extent both copper and nickel reduces its rate and moves the maximum value of the right. Results of this study also indicate that the initial growth of plates of ferrite occurs mainly diffusionlessly and the resulting maximum on the transformation rate curve should be identified with the time after which predominantly ferrite plates growth by diffusion.
- Źródło:
-
Archives of Foundry Engineering; 2013, 13, 3 spec.; 175-178
1897-3310
2299-2944 - Pojawia się w:
- Archives of Foundry Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł