Effects of rapid heating cyclic heat treatment on microstructures and compression mechanical properties of TiAl-based alloy
来源期刊：中国有色金属学报(英文版)2004年第3期
论文作者：彭超群 贺跃辉 黄伯云 P.K.Liaw
文章页码：459 - 463
Key words：TiAl; compression mechanical properties; microstructural refinement; phase interface nucleation
Abstract: By means of rapid heating cyclic heat treatment, the microstructure of a TiAl-based alloy was refined. The colony size and lamellar spacing were measured to be 50μm and 0.12μm, respectively. The compression mechanical properties were determined at room temperature and the best comprehensive mechanical properties can reach σ0.2 of 745.1 MPa,σp of 1672.2 MPa and δ of 19.40%. The improvement of mechanical properties is caused by the microstructural refinement and the phase interface nucleation contributes a lot to the refinement of microstructure.
