Effect of solidification processing parameters on the cellular spacings in the Al-0.1 wt% Ti and Al-0.5 wt% Ti alloys

Gunduz M., kaya h., ÇADIRLI E., MARAŞLI N., Keslioglu K., Saatci B.

JOURNAL OF ALLOYS AND COMPOUNDS, cilt.439, ss.114-127, 2007 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Derleme
  • Cilt numarası: 439
  • Basım Tarihi: 2007
  • Doi Numarası: 10.1016/j.jallcom.2006.08.246
  • Dergi Adı: JOURNAL OF ALLOYS AND COMPOUNDS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.114-127
  • Anahtar Kelimeler: Al-Ti alloys, microstructure, directional solidification, cellular spacing, crystal growth, DENDRITE ARM SPACINGS, CU PERITECTIC ALLOYS, UNIDIRECTIONAL SOLIDIFICATION, DIRECTIONAL-SOLIDIFICATION, MICROSTRUCTURE SELECTION, PB-SN, GROWTH, PREDICTION, PHASE, MODEL
  • Erciyes Üniversitesi Adresli: Evet

Özet

The aim of this work is to investigate the relationship between solidification processing parameters (temperature gradient, G, growth rate, V, and cooling rate T), and cellular spacing, lambda, in the Al-0.1 wt% Ti and Al-0.5 wt% Ti alloys grown at high growth rates. In order to achieve this aim, the specimens were solidified under argon atmosphere and steady-state conditions upward with different temperature gradients, G at a constant growth rate, V and with different V at a constant G for the Al-Ti alloys in the Bridgman type directional solidification apparatus. The cellular spacing,. was measured and expressed as functions of solidification processing parameters, G, V and T by using a linear regression analysis. The results were compared with similar previous experimental work and current theoretical models suggested for cellular growth. (c) 2006 Elsevier B.V. All rights reserved.