Nonocrystalling structure and phase transformation of the intermetallic compound TiAl processed by severe plastic deformation

摘要

Bulk samples of nanocrystalline TiAl wereproduced by severe plastic deformation. Differentamounts of cold work lead to different nanocystallinestructure s and phase contents. Based on transmissionmicroscopy and X-ray data an assumption has been madeto explain the origin of the observed structural changes