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In this paper, we report a β 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 α phase. The shorter composition transition zone and simpler process procedure can improve the deficiency of α seeding technique. The proper temperature gradient and normal growth rate...
A huge triple phase region of the nonfaceted–nonfaceted peritectic reaction within a large temperature region (around 8K) was obtained in directionally solidified Cu–Ge alloys, which provides a convincing experimental evidence for studying the morphology of peritectic reaction trijunction region. The huge non-isothermal triple phase region suggests that the peritectic reaction occurs in a composition...
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