A high-resolution transmission electron microscopy study of long-period grain-boundary structure in α-Ti

摘要

Using high-resolution transmission electron microscopy, a long-period grain o boundary (GB) in-Ti is reported upon. The misorientation angle is 29.0 . The simulated image generated by the method of molecular statics and a multislice algorithm is compared withe the experimental image in order to investigate the atomic structure of the GB. The modelled structure having the best fit to the o experimental structure is an asymmetrical 27.5 2, 2, 0, 15 / 1120 GB. It is analysed in terms of structural units.