The tallest peak contains chromium silicate in a cubical phase. Similarly the other peaks constitute either hexagonal phase silicon carbide or cubical phase chromium silicate. There are a few irregularities with no defined peaks indicating the existence of impurity phases. A good crystalline nature is observed in the base metal. Similarly, the X-ray diffraction spectra (Fig. 5.39) provide information
on crystal phase in the weld region. The tallest peak contains