Article ID Journal Published Year Pages File Type
9795668 Materials Science and Engineering: A 2005 4 Pages PDF
Abstract
The paper presents the results of electron microscopy investigations of the defect structure evolution and the phase transformation of ultra fine-grained (UFG) Cu and CuAlO alloy. The UFG Cu was prepared using the equal-channel angular (ECA) pressing method. The CuAlO alloy was synthesized by mechanical milling and subsequent high temperature pressing. The initial grain size of the materials was 200 nm. The grain and dislocation structures were investigated qualitatively and quantitavely. In the Cu alloy, deformation twinning was revealed to occur in coarse grains together with slip deformation. The evolution of grain and dislocation micro structure in the presence or absence of solid solution and of dispersion hardening is analyzed, and differences are assessed.
Related Topics
Physical Sciences and Engineering Materials Science Materials Science (General)
Authors
, , , , ,