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:
An Al-3%Mg-0.25%Sc-0.12%Zr alloy was deformed by triaxial forging at 20-400°C up tostrains of about 3. A study of its textural evolution reveals the tendency towards three symmetricalvariants of a 〈110〉〈1 10 〉〈001〉 component. This experimental observation is supported by a 3Dspatially resolved crystal plasticity analysis. Samples strained at room temperature undergo grainfragmentation in the form of fine substructures and relatively weak textures. Conversely, at 300°Cand above, more homogeneous intergranular deformation and rotations give rise to stronger textures.This eventually encourages grain coalescence and thus the development of interpenetrating“orientation chains”, creating a new type of microstructure. The influence of this texture developmenton the specific work hardening behaviour is discussed
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/16/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.546-549.793.pdf
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