TiAl基合金的组织演变

Microstructure Evolution of TiAl-based Alloy

针对 TiAl 基合金的显微组织控制,综述了 TiAl 基合金中几种常见的组织演变,着重论述了变形 TiAl基合金在热处理过程中的晶拉长大及动力学分析,TiAl 基合盒在冷却时层状组织的形成和全层状 TiAl 基合盒在高温时的非连续粗化这3种组织演变的研究现状和面临的问题。

An understanding of microstructure evolution in TiAl-based alloy is very important to control of its microstructures.Several common kinds of microstructure evolution in TiAl-based alloy are reviewed.The achieve- ments and difficulties relating to the research of grain growth and its kinetics in deformed TiAl-based alloy during heat treatment,formation mechanism of lamellar microstructures in TiAl-based alloy and discontinuous coarsening in fully lamellar TiAl-based alloy are discussed in detail.