Figure 5 Load curve.
Thermal boundary conditions, given by Eqs. (3) and (4), occur at all the
surfaces except the adiabatic plane at the longitudinal symmetry plane
of the final joint; in the same manner, for numerical simplicity, the
surfaces of the chamfer hollow have been considered adiabatic before
supplying the filler material.
Thermal properties dependent on temperature46,47 are
reported in Figure 6A. In order to take into account the transformation
phase in the thermal analysis, a latent heat per mass unit, a solidus
temperature and a liquidus temperature equals to 277000 J/kg, 1495 °C,
1540 °C respectively, have been used, whereas the temperature dependent
heat loss coefficient H , applied on the surfaces, is shown in
Figure 6B.