Jg. Zheng et al., THE STRUCTURE OF TRANSLATION TWINS IN TIAL INVESTIGATED B HIGH-RESOLUTION ELECTRON-MICROSCOPY, Philosophical magazine. A. Physics of condensed matter. Defects and mechanical properties, 70(5), 1994, pp. 917-924
Translation twins (T twins) of gamma-TiAl (L1(0)-type structure) in an
as-cast two-phase TiAl-Ti3Al intermetallic alloy with Cr addition are
characterized by high-resolution electron microscopy and supported by
image simulation. The T twin and the matrix are connected through a g
lide reflection plane at the {111} twin interface, and the glide vecto
r is 1/2[1BAR01] parallel to the interface. The formation mechanism of
the T twins and their possible influence on the deformation mechanism
of the material are discussed.