Title of article :
Microstructure refinement of a TiAl alloy by beat treatment
Author/Authors :
Wang، نويسنده , , Yong and Wang، نويسنده , , J.N. and Xia، نويسنده , , Qiangfei and Yang، نويسنده , , Jie، نويسنده ,
Abstract :
In order to refine the as-cast microstructure of a TiAl based alloy with a grain size of ∼1000 μm, a multiple-stage heat treatment was carried out and a fine fully lamellar microstructure (FFL) with a grain size of 10–20 μm was obtained. This treatment route includes pretreatment in the single α field, cyclical treatment and aging in the α+γ field and solution treatment in the α field again. The final refining result appears to be influenced by the aging length.
Keywords :
TiAl Based alloy , Cyclic heat treatment , Equiaxed ? , Fine fully lamellar structure , Grain refinement
Journal title :
Astroparticle Physics
