Good to know. Also, can you speak a bit more to the laser effect as a fixed heat flux/temperature? I know radiation is very non-linear via steffan boltzman 4th power... Can I just stick an equivalent W/m^2 on the weld joint of interest? This will no longer include effective emissivity, which is of physical importance here, however.
Additionally, any idea on where I can get the standard state of enthalpy for a 63Sn-37Pb eutectic solder?