Evolution of texture in a magnesium alloy processed by ECAP through dies with different angles
Figueiredo, Roberto B.
Beyerlein, Irene J.
Zhilyaev, Alexander P.
Langdon, Terence G.
MetadataShow full item record
A fine-grained magnesium ZK60 alloy was used to study texture evolution during processing by equal channel angular pressing. Experiments were conducted by pressing the alloy through dies having angles of 90◦, 110◦ and 135◦ and the textures were predicted using a visco-plastic self-consistent model. It is shown that the development of texture depends upon the channel angle within the die. Calculations indicate that, after basal a slip, there is significant prismatic a slip and pyramidal a slip activity during ECAP in all cases. This is a unique result attributed to the fine grain size and severe plastic deformation. The simulations also reveal evidence of geometrical softening in the first stage of deformation when using dies having channel angles of 90◦ and 110◦.
Showing items related by title, author, creator and subject.
Spectral dependence of texture features integrated with hyperspectral data for area target classification improvement Bangs, Corey F.; Kruse, Fred A.; Olsen, Chris R. (SPIE, 2013);Hyperspectral data were assessed to determine the effect of integrating spectral data and extracted texture feature data on classification accuracy. Four separate spectral ranges (hundreds of spectral bands total) were ...
Improving Identification of Area Targets by Integrated Analysis of Hyperspectral Data and Extracted Texture Features Bangs, Corey F. (Monterey, California. Naval Postgraduate School, 2012-09);Hyperspectral data were assessed to determine the effect of integrating spectral data and extracted texture features on classification accuracy. Four separate spectral ranges (hundreds of spectral bands total) were used ...
Garcia, Frank W., Jr. (Monterey, California: Naval Postgraduate School, 1990-06);This study employs Synthetic Aperture Radar (SAR) imagery from the Marginal Ice Zone Experiment (MIZEX) 1987 to identify an optimal set of statistical descriptors that accurately classify three types of ice (first-year, ...