Superplastic diffusion bonding of Ni based alloy/γ-TiAl based alloy;

To investigate the size effect of effective elastic properties for a nearly lamellar γ-TiAl based alloy,a micromechanical method was developed based on the micropolar theory.

With aluminum isopropoxide(Al(OC3H7)3) as precursor,an Al2O3 film was deposited on a γ-TiAl based alloy by sol-gel method.

Cavitation erosion of γ-TiAl alloy;

To investigate the microstructural stability,stress-strain response and fatigue fracture of a new generation γ-TiAl alloy with high Nb content under cyclic deformation,Low aycle fatigue tests under total strain controlling were carried out in the temperature range of 550℃～750℃ Deformed microstructures and fatigue fracture surfaces were observed.

Calculation of Valence Electron Structures in Alloying γ-TiAl and Its Mechanical Properties;