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:
Due to the deformation mechanisms and the typical basal texture rolled magnesiumsheets show a significant asymmetry of flow stress in tension and compression. In order to avoidthis undesired behavior it is necessary to achieve non-basal texture during rolling, or at least, to reducethe intensity of the basal texture component. The reduction of the anisotropy caused by thebasal texture is very important for subsequent forming processes. This project aims at optimizingthe hot rolling process with special consideration of texture effects. The development of the modelis carried out in close cooperation with the experimental work on magnesium alloy AZ31 .The experimentalresults are required for the determination of model parameters and for the verification ofthe model. Deformation-induced texture is described by the visco-plastic self-consistent (VPSC)model of Lebensohn and Tomé. The combination of deformation and recrystallization texture modelsis applied to hot compression tests on AZ31, and it is found, that the model describes the observedtexture and hardening/softening behavior well. In some cases rotation recrystallization occursin AZ31 which appears to be a possibility to reduce the undesired basal rolling texture
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.3448.pdf
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