An upper-bound analysis for equal-channel angular extrusion

Altan, BS; Purcek, GENÇAĞA; Miskioğlu, Ibrahim

doi:10.1016/j.jmatprotec.2004.11.010

An upper-bound analysis for equal-channel angular extrusion

Altan B., Purcek G., Miskioğlu I.

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, cilt.168, sa.1, ss.137-146, 2005 (SCI-Expanded, Scopus)

Yayın Türü: Makale / Tam Makale
Cilt numarası: 168 Sayı: 1
Basım Tarihi: 2005
Doi Numarası: 10.1016/j.jmatprotec.2004.11.010
Dergi Adı: JOURNAL OF MATERIALS PROCESSING TECHNOLOGY
Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
Sayfa Sayıları: ss.137-146
Karadeniz Teknik Üniversitesi Adresli: Evet

Özet

Deformation of the material during a 90 degrees equal-channel angular extrusion (ECAE) process is analyzed using upper-bound theorem. The model suggested includes the effect of friction between the sample and the die walls, radius of inner corner of the die and the dead metal zone on the deformation patterns during ECAE. The parameters of the model is explored in relation to the deformation of the material during the process. Further directions for progress in deformation analysis in severe plastic deformation processes are outlined. (c) 2004 Elsevier B.V. All rights reserved.