INTERFACE－RELATED　DEFORMATION　MECHANISMS　AND　DISLOCATION　MOBILITIES　IN　TWO－PHASE　TITANIUM　ALUMINIDE　ALLOYS

作     者：CHRISTOPH Ulrich, SPARKA Ulf APPEL Fritz, and WAGNER Richard(Institute for Materials Research, GKSS Research Center, Max-Planck-Str. ,D-21502 Geesthacht, Germany) 

作者机构：GKSS Research Center Geesthacht Germany 

出 版 物：《Acta Metallurgica Sinica(English Letters)》 (金属学报（英文版）)

年 卷 期：1995年第8卷第Z1期

页      面：349-358页

核心收录：

学科分类：0810[工学-信息与通信工程] 08[工学] 0805[工学-材料科学与工程（可授工学、理学学位）] 080502[工学-材料学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

主　　题：DEFORM PHAS 

摘      要：Deformation micromechanisms of two-phase titanium aluminide alloys have been investigated by deformation tests and electron microscope observations. Interaction mechanisms of perfect and twinning dislocations with the lamellar interfaces were characterized with respect to the factors governing the multiplication and the slip paths of the dislocations. Thermally activated processes controlling the dislocation mobility were described in terms of activation volumes and activation *** analysis is aimed at the identification of the dislocation processes operating under deformation conditions which are relevant for practical applications.