Time-resolved studies of Ti34−xCu47Zr11Ni8Six metallic glass devitrification using high temperature X-ray powder diffraction

Abstract Time-resolved devitrification studies of Ti 34− x Cu 47 Zr 11 Ni 8 Si x metallic glasses were performed using a recently developed high temperature furnace in a Debye–Scherrer geometry. Samples included powders produced by high pressure gas atomization and surface coatings deposited by air plasma spraying. Synchrotron radiation at the Advanced Photon Source at Argonne National Laboratory was used to follow the devitrification of samples during heating at 40 K min −1 between 623 and 1073 K. The crystallization behavior observed with structural diffraction data compare well with results from thermal analysis using differential scanning calorimetery. At 1073 K, these amorphous alloys evolve to a four phase microstructure which includes phases that appear to be closely related to Cu 51 Zr 14 , CuTi and Cu 2 TiZr.