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:
The hexagonal crystal structure of AZ31 results in a very high mechanical anisotropy and apoor formability of this alloy. In order to address these problems the influence of twinning, slip anddynamic recrystallization (DRX) on the microstructure and texture evolution during compression ofAZ31 has been studied over a range of temperatures. Cylindrical samples were tested uniaxially incompression from room temperature to 350oC, with the compression axis parallel to either the normaldirection (ND) or the transverse direction (TD) of the hot-rolled sheet from which the samples werecut. The microstructure was characterized using electron backscattered diffraction (EBSD) analysis.Extensive twinning was only observed in the TD samples at all temperatures. The effect of thedifference in twinning and slip between the TD and ND samples on the mechanism of dynamicrecrystallization has also been investigated. For this, the grains formed during DRX were identified bytheir appearance in EBSD orientation maps and the orientations of these grains determined
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.245.pdf
