Recently, laser additive manufacturing (LAM) technologies are increasingly being applied for producing components with excellent physical and mechanical properties in the aerospace, automotive energy industries. This work is aimed at modelling fatigue usage factor of γ-TiAl alloy fabricated through LAM. The simulation were performed using COMSOL Multiphysics 5.4 software by developing a y-TiAl ...

Fiber laser-cold metal transfer arc hybrid welding was developed to welding-braze dissimilar Al and Ti alloys in butt configuration. Microstructure, interface properties, tensile behavior, and their relationships were investigated in detail. The results show the cross-weld tensile strength of the joints is up to 213 MPa, 95.5% of same Al weld. The optimal range of heat input for accepted joints...

Computer simulation of the core structure and glide of ordinary 1/2<110] dislocations and <101] superdislocations in L10 TiAl has been performed using the recently constructed Bond-Order Potentials. This description of atomic interactions includes explicitly, within the tightbinding approximation, the most important aspects of the directional bonding, namely d-d, p-p and d-p bonds. The ordinary...

The effect of applied voltage (400, 450, and 500 V) on the microstructure, bioactivity, corrosion rate plasma electrolytic oxidation (PEO) coatings γ-TiAl alloy was investigated. microstructure chemical composition achieved were studied, along with their bioactivity behaviors in simulated body fluid (SBF). results demonstrated that higher coating′s surface pore, greater number suitable sites fo...

Titanium Aluminide (TiAl) alloys are intermetallics that offer low density, high melting point, good oxidation and corrosion resistance compared to Ni-based superalloys. As a result, these used in aero-engine parts such as turbine blades, fuel injectors, radial diffusers, divergent flaps, more. During operation, components subjected thermal loading an oxidizing corrosive environment, which resu...