Abstract
This study aims to evaluate adhesion quality of oxide scale with a laser spallation technique. Adhesive strength was attempted to measure at room temperature and up to 200 ℃. The exfoliation can be detected by correlation coefficient calculated with a series of the waveform obtained at epicenter of laser irradiation. The adhesive strength was estimated with stress distribution from wave propagation calculated in the sample for taking an effect of reflection at the sample surface and the interface into account.