Table 1 Materials properties used for numerical calculations.
From: Evolution of solidification texture during additive manufacturing
Parameters | Value |
|---|---|
Laser power (W) | 750 |
Laser beam diameter (mm) | 0.5 |
Laser distribution factor | 3 |
laser scanning speed (mm s−1) | 6.25 |
Liquidus temperature (K) | 1533 |
Solidus temperature (K) | 1609 |
Density of metal (kg m−3) | 8100 |
Thermal conductivity of solid (J m−1 s−1 K−1) | 0.5603 + 0.0294T-7.0×10−6T2 |
Thermal conductivity of liquid (J m−1 s−1 K−1) | 29.6 |
Specific heat of solid (J kg−1 K−1) | 360.56 + 0.2621T-4×10−5T2 |
Specific heat of liquid (J kg−1 K−1) | 720.0 |
Temperature coefficient of surface tension (N m−1 K−1) | −0.37×10−3 |
Coefficient of thermal expansion (K−1) | 1.63×10−5 |
Viscosity of liquid (kg ms−1) | 7.0×10−3 |
