Formation of fine fully-lamellar microstructure of TiAl-based alloy in rapid heating cyclic heat treatment process
来源期刊:中国有色金属学报(英文版)2001年第5期
论文作者:彭超群 黄伯云 唐建成
文章页码:649 - 654
Key words:rapid heating; cyclic heat treatment; nucleation and growth; model; mechanism
Abstract: The optical observation results of neocrystallization nucleation and growth of fine fully-lamellar (FFL) α2/γ microstructure of a TiAl-based alloyin rapid heating cyclic heat treatment process were reported. The characteristics of α+γ→αtransformation under rapid heating conditions were analysed. A model for explaining the nucleation and growth mechanism of FFL α2/γ microstructure was proposed.