Table 1 Material properties of Al-6061 and sapphire for the present simulations51.
Property | Parameter | Al-6061 | Sapphire |
|---|---|---|---|
General | Density (kg/m3) | 2700 | 3980 |
Thermal conductivity (W m−1 K−1) | 154 | 33 | |
Specific heat (J kg−1 K−1) | 1009 | 755 | |
Troom (K) | 298 | 298 | |
Tmelt (K) | 925 | – | |
Elastic | Young’s modulus (GPa) | 69 | 416 |
Poisson’s ratio | 0.331 | 0.231 | |
Plastic | A (MPa) | 270 | – |
B (MPa) | 154.3 | – | |
n | 0.239 | – | |
m | 1.42 | – | |
C1 | 0.002 | – | |
C2 | 0.029 | – | |
Reference strain rate (s−1) | 1 | – | |
\(\dot{\varepsilon }_{c}\)(s−1) | 597 | – | |
EOS | A1 (MPa) | 75.2 | – |
B1 (MPa) | 65 | – | |
a | 0.5 | – | |
b | 1.63 | – | |
λ | 5.0 | – | |
ξ | 5.0 | – | |
es (kJ g−1) | 3.0 | – | |
e0 (kJ g−1) | 5.0 | – | |
e’ (kJ g−1) | 15.0 | – |
