Journal
INTERMETALLICS
Volume 73, Issue -, Pages 1-4Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.intermet.2016.02.004
Keywords
Titanium aluminides; Directional solidification; Crystal growth; Lamellar orientation
Categories
Funding
- National Natural Science Foundation of China [51425402, 51371066, 51331005]
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In this paper, we report a beta seeding technique for the lamellar orientation controlling in TiAl alloy, which is a novelty and effective method for aligning the lamellar orientation of Ti-47Al-0.5W-0.5Si with primary alpha phase. The shorter composition transition zone and simpler process procedure can improve the deficiency of alpha seeding technique. The proper temperature gradient and normal growth rate are necessary for aligning the lamellar orientation in TiAl alloy with primary alpha phase using beta seeding technique. (C) 2016 Elsevier Ltd. All rights reserved.
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