Study on Inclusions in Ductile Cast Iron

Abstract:

Article Preview

The type, shape and distribution of inclusions in ductile cast iron were studied using a scanning electron microscopy (SEM) and the energy spectrum analysis, combining the thermodynamic calculation of inclusions formation. The results show that the oxides are most likely formed from the thermodynamics in ductile cast iron when the temperature is 1373~1873 K , followed by the sulfides, the carbides again. There exist the uniphase inclusions MgO, SiO2 and MgS, the heterogeneous inclusions of containing rare-earth MnO-MgO-SiO2-La2O3 and MgS-LaS-SiO2-Al2O3-MgO , and the heterogeneous inclusions of non-rare earth SiO2-MnO-MgO-Al2O3 in ductile cast iron. The shapes of the inclusions are mainly polygon, and the size variation is from 3 to 10 um. The inclusions are mainly distributed on the graphite ball surfaces, the ferrite grain boundaries and in the pearlites.

Info:

Periodical:

Advanced Materials Research (Volumes 299-300)

Edited by:

Jianzhong Wang and Jingang Qi

Pages:

273-276

DOI:

10.4028/www.scientific.net/AMR.299-300.273

Citation:

W. T. Guo et al., "Study on Inclusions in Ductile Cast Iron", Advanced Materials Research, Vols. 299-300, pp. 273-276, 2011

Online since:

July 2011

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.