title: Transmission electron microscopy investigations of AZ91 alloy deformed by equal-channel angular pressing.
abstract: 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.
authors.affiliation: Czestochowa University of Technology, Institute of Materials Engineering, 42-200 Czestochowa, Poland. kacha@mim.pcz.czest.pl
authors.forename: K N
authors.initials: KN
authors.lastname: Braszczyńska-Malik
authors.forename: L
authors.initials: L
authors.lastname: Lityńska
authors.forename: W
authors.initials: W
authors.lastname: Baliga