ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
Equal channel angular extrusion (ECAE) is a technology of refining crystal grain. In thispaper, ECAE was introduced into the preparation of semi-solid billet and the extrusion process wassimulated using finite element method. The variation of stress (mean stress, max principle stress,effective stress), the distribution of strain, the lattice change were obtained. The results show thatnot only does the shear stress exist, but also the normal stress in the extrusion process; the stressesin die inner corner of channel and outer corner of channel are not the same. In the inner corner,besides the simple shear, there are compression, and in the outer corner, tension. The strain isnon-homogeneous and appears a graded distribution
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/24/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.141-143.683.pdf
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