THE α_2/γ INTERFACIAL STRUCTURE CHANGES IN A DUAL-PHASE γ-TiAl ALLOY AFTER HOT DEFORMATION AND SUBSEQUENT SHORT-TIME ANNEALING

金属学报(英文版), 1997, 10(6): 501-509.

THE α_2/γ INTERFACIAL STRUCTURE CHANGES IN A DUAL-PHASE γ-TiAl ALLOY AFTER HOT DEFORMATION AND SUBSEQUENT SHORT-TIME ANNEALING

L.C. Zhang , G.L. Chen , J. G. Wang and H.Q. Ye(State Key Laboratory for Advanced Metals and Materials , University of Science and Technology Beijing , Beijing 100083 , China.)(Laboratory of Atomic Imaging of Solids , Institute of Metal Research , Chinese Academy of Sciences , Shenyang 110015 , China)

Keywords： α_2/γinterface , null , null , null

The nonequilibrium α2/γ interfacial structures have been studied using the conventional and high-resolution transmission electron microscope. The nonequilibrium γ/γ and α2/γ interfaces are important microstructure features of hot-forged Ti-45Al-8Nb2.5Mn-0.05B alloys. The characteristics of these nonequilibrium interfacial boundaries include the frequent interfacial ledges and the deviation from the conventional orientation relationship {111}γ.

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