摘要
利用常规和高分辨电镜（ＨＲＥＭ），研究了热形变Ｔｉ４５Ａｌ８Ｎｂ２．５Ｍｎ０．０５Ｂ（摩尔分数）合金中偏离严格取向关系的α２／γ片层与非严格孪晶关系的γ／γＴ片层以及这些非平衡片层界面的精细结构，并提出了这些非平衡片层形成的可能位错反应机制。
The α 2/γ lamellar deviating the strict orientation relationship and γ/γ T lamellar without the strict twin relationship in a hot deformed Ti 45Al 8Nb 2.5Mn 0.05B(mole percent) alloy were investigated by the conventionalelectron microscopy and high resolution electron microscopy (HREM), as well as the fine structures on these nonequilibrium interlamellar interfaces. The possible dislocation reactions of the nonequilibrium interface formation were also supposed.
出处
《中国有色金属学报》
EI
CAS
CSCD
北大核心
1997年第3期94-98,共5页
The Chinese Journal of Nonferrous Metals
基金
国家自然科学基金
关键词
TIAL合金
热变形
HREM
TiAl based alloy α 2/γ lemellar γ/γ T lamellar HREM
