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Author Lee, Byoung Ho ♦ Kim, Sun Mi ♦ Mehtedi, Mohamed El ♦ Evangelista, Enrico ♦ Lee, Chong Soo
Source SpringerLink
Content type Text
Publisher The Korean Institute of Metals and Materials
File Format PDF
Copyright Year ©2010
Language English
Subject Domain (in DDC) Technology ♦ Engineering & allied operations
Subject Keyword metals ♦ hot working ♦ compression test ♦ twinning ♦ grain refinement ♦ Continuum Mechanics and Mechanics of Materials ♦ Characterization and Evaluation of Materials ♦ Engineering Thermodynamics, Heat and Mass Transfer ♦ Magnetism, Magnetic Materials ♦ Operating Procedures, Materials Treatment ♦ Metallic Materials
Abstract The influence of stress state on the high temperature workability of rolled AZ31 Mg alloy was investigated on the basis of a processing map. To construct the processing map, high temperature compression tests were carried out on samples oriented parallel to the rolling direction at various temperatures (25 °C∼450 °C) and strain rates (10$^{−3}$ s$^{−1}$∼5s$^{−1}$), and then the results were compared with those of a torsion test. The overall efficiency profiles of both the compression and torsion processing maps were similar to each other, but the index of dissipation efficiency in the torsion was somewhat lower than that in the compression. The microstructure of the compressed specimens revealed much finer grained structure than that of the torsion specimens. Such microstructural differences were attributed to the different tendencies of twin formation and texture evolution depending on the stress state.
ISSN 15989623
Age Range 18 to 22 years ♦ above 22 year
Educational Use Research
Education Level UG and PG
Learning Resource Type Article
Publisher Date 2010-04-26
Publisher Place Springer
e-ISSN 20054149
Journal Metals and Materials
Volume Number 16
Issue Number 2
Page Count 7
Starting Page 197
Ending Page 203

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Source: SpringerLink