Directional cellular growth of Al-2 wt% Li bulk samples
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING, cilt.94, sa.1, ss.155-165, 2009 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 94 Sayı: 1
- Basım Tarihi: 2009
- Doi Numarası: 10.1007/s00339-008-4714-9
- Dergi Adı: APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
- Sayfa Sayıları: ss.155-165
- Erciyes Üniversitesi Adresli: Evet
Özet
Al-2 wt% Li alloy was prepared using metals of 99.99% high purity in the vacuum atmosphere. The bulk samples were directionally solidified upward with a constant growth rate, V, (similar to 8.30 mu m/s) and different temperature gradients, G, (3.11-6.06 K/mm) and also with a constant G (6.06 K/mm) and different V (8.3-164.70 mu m/s) in the directional solidification apparatus. The cellular spacings, lambda, were measured from both transverse and longitudinal section of the specimens and expressed as functions of solidification processing parameters, G and V, by using a linear regression analysis. The effects of the G and V on lambda, were investigated. The experimental results were compared with the current theoretical and numerical models, and similar previous experimental results.