THE STRUCTURE OF TRANSLATION TWINS IN TIAL INVESTIGATED B HIGH-RESOLUTION ELECTRON-MICROSCOPY

Citation
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
Citations number
9
Categorie Soggetti
Physics, Applied
ISSN journal
01418610
Volume
70
Issue
5
Year of publication
1994
Pages
917 - 924
Database
ISI
SICI code
0141-8610(1994)70:5<917:TSOTTI>2.0.ZU;2-S
Abstract
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.