Graphite C-axis Mapping in Spheroidal Graphite Cast Iron Using Nanoscale Electron Diffraction

Abstract

  In the development of spheroidal graphite cast iron, there is a need to analyze the crystal structure distribution in spheroidal graphite particles, as well as observe the shape and morphological distribution. In this study, the c-axis distribution in spheroidal graphite particles was investigated at the nanoscale by an electron diffraction mapping using a transmission electron microscope. In the cross section of the spheroidal graphite particles, uniform c-axis distribution towards the center was observed. Our method paves the way to elucidate the mechanism of spheroidal graphite particle formation.