摘要
对钛铝比为１．１７４、１．１０５和１．０４１的（ＴｉＡｌ）－２．５Ｖ－１Ｃｒ（ａｔ％）合金层片组织在１３２３Ｋ热暴露中的组织变化进行了观察和分析。发现钛铝比对ＴｉＡｌ合金层片组织的稳定性和失稳分解机理有重要影响，钦铝比适当大于１：１（如１．１０５）的合金可以得到稳定性更好的层片组织。
The stability of TiAl alloy lamellar structure in thermo-exposure has attracted extensive attention recently. This paper conducted the observations and analyses on the transformation of the lameller structures in 1323K thermo-exposure. It's revealed that the Ti/Al ratio has significant effects on the stability and decomposition mechanisms of the lamellar structures.The lamellar structure with Ti/Al ratio properly higher than 1:1 can have much better stability.
出处
《航空材料学报》
CAS
CSCD
1996年第1期1-6,共6页
Journal of Aeronautical Materials
关键词
钛合金
层片组织
钛铝比
稳定性
TiAl alloy lamellar structure,Ti/Al ratio,stability
