Table 1: The physical properties of Ti Al alloy used in simulation.
Parameter/physical property | Value |
---|---|
Liquidus temperature, TL/(K) | 1830 |
Liquidus slope, ml(K/wt. %) | -7.9 |
Equilibrium partition coefficient, k0 | 0.78 |
Gibbs-Tompson coefficient, (K.m) | 2.4 × 10-7 |
Solute diffusion coefficient in the liquid, Dl (m2/s) | 3 × 10-9 |
Alloy initial composition, C0 (at.%) | 45 |
Welding thermal efficiency, η | 0.75 |
Welding voltage, U(V) | 13.8 |
Welding current, I(A) | 90 |
Energy concentration factor, K (1/m2) | 5 |
Surrounding medium temperature, Tf (K) | 297 |