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Transmission electron microscopy investigations of AZ91 alloy deformed by equal‐channel angular pressing
Author(s) -
BRASZCZYŃSKAMALIK K. N.,
LITYŃSKA L.,
BALIGA W.
Publication year - 2006
Publication title -
journal of microscopy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.569
H-Index - 111
eISSN - 1365-2818
pISSN - 0022-2720
DOI - 10.1111/j.1365-2818.2006.01640.x
Subject(s) - crystal twinning , transmission electron microscopy , microstructure , dislocation , materials science , pressing , alloy , electron microscope , condensed matter physics , deformation (meteorology) , electron diffraction , matrix (chemical analysis) , crystallography , diffraction , optics , composite material , physics , chemistry , nanotechnology
Summary The microstructure of transverse and longitudinal sections of a commercial AZ91 alloy processed by equal‐channel angular pressing was examined by transmission electron microscopy. A high dislocation density and large number of deformation twins were observed in the investigated material. The {102} matrix ‖ {012} twin twinning system was determined by selection area diffraction patterns obtained from the twin and matrix. Transmission electron microscopy analyses also revealed that the twins interacted with each other and pile‐ups of dislocations occurred near the twin boundary.