| 2 | Deformation-induced α_2/γ Interfaces in a Hot-deformed Ti-45Al-10Nb Alloy显示文摘The structure change of α2/γ interface in a Ti-45Al-10Nb alloy induced by hot deformation was investigated by conventional and high-resolution transmission eIectron microscopy. Two types of hot deformation induced special α2/γ intedeces, coherent intedeces with high density of ledges and semi-coherent α2/γ intedeces were found to be due to the absorption of mobile dislocations into the α2/γ inteface. For the misoriented semi-coherent α2/γ interfaces, the densities of dislocation ledges increase with the misoriented angle between (111)γ and (0001)α2 planes, and 1/3[111] Frank partial dislocations were involved in the dislocation ledges. Formation mechanism of these deformation-induced α2/γ interfaces was discussed to be related to the role of α2/γ interface5 adjusting the deformation as a dislocation sink absorbing the slipping dislocations in the γ | Jinguo WANG Lichun ZHANG and Guoliang CHEN (State Key Lab. for Advanced Metals and Materials, University of Science and Technology Beijing, Beijing 100083, China )Henqiang YE(Lab. of Atomic Imaging of Solids, Institute of Metal Research, Chinese Academy | 1998 | Journal of Materials Science & Technology1998，14，2： | 0 |
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