Yazar
Sajadifar, Seyed Vahid, Yapıcı, Güney Güven
Basım Tarihi
2014-05
Basım Yeri
-
Springer Nature
Konu
Dynamic recovery and recrystallization, ECAE/ECAP, High temperature deformation modeling, Mechanical behavior, Severe plastic deformation, Titanium
Tür
Süreli Yayın
Dil
İngilizce
Dijital
Evet
Yazma
Hayır
Kütüphane
Özyeğin Üniversitesi
Demirbaş Numarası
1544-1024
Kayıt Numarası
23ac9b66-2677-495e-acba-ef072935cf1f
Lokasyon
Mechanical Engineering
Tarih
2014-05
Notlar
European Commission
Örnek Metin
In this investigation, compression tests were performed at a strain rate of 0.001-0.1 s(-1) in the range of 600-900 degrees C to study the high temperature deformation behavior and flow stress model of commercial purity (CP) titanium after severe plastic deformation (SPD). It was observed that SPD via equal channel angular extrusion can considerably enhance the flow strength of CP titanium deformed at 600 and 700 degrees C. Post-compression microstructures showed that, a fine grained structure can be retained at a deformation temperature of 600 degrees C. Based on the kinematics of dynamic recovery and recrystallization, the flow stress constitutive equations were established. The validity of the model was demonstrated with reasonable agreement by comparing the experimental data with the numerical results. The error values were less than 5% at all deformation temperatures except 600 degrees C.
DOI
10.1007/s11665-014-0947-2
Cilt
23
