Abstract
Metal is composed of microstructure elements, for example, precipitates. The form and distribution of microstructure elements are related to mechanical properties. However, data measured is two-dimensional data generally obtained from a cross section of a specimen, while in fact, precipitates distribute over three-dimensional space of the specimen.
In this research, three-dimensional images of graphites in spheroidal graphite cast iron were constructed on a personal computer, and the surface area and volume of graphites were obtained. In order to determine the conditions of three-dimensional image construction, virtual spheroidal graphite cast iron was used.
Three-dimensional shape factor distribution was also compared with two-dimensional, and the three-dimensional shape factor showed a wide range and a low peak value.
