ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Uniaxial compression tests on hot-rolled AZ31 Mg alloy were carried out at a temperatureof 300°C. In order to investigate work hardening and texture evolution during plastic deformation,cylindrical specimens were compressed to the rolling direction. Experimental investigation revealsthat flow curves are strongly dependent on microstructure evolution such as deformation twinningand softening phenomenon. The occurrence of deformation twinning and softening phenomenon wasrevealed by the observation of microtexture using electron backscatter diffraction (EBSD). Avisco-plastic self-consistent (VPSC) polycrystal model was used to simulate the work hardening,softening and texture evolution during the uniaxial compression. In order to calculate orientation ofdeformation twins, predominant twin reorientation (PTR) scheme was implemented into thepolycrystal model. A softening scheme was also implemented in the polycrystal model to predictsoftening phenomenon and texture evolution after a peak stress
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/17/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.558-559.1063.pdf
Permalink