Intrinsic Wetting of TC4 by Ag, AgCu and AgCuTi Alloys

Intrinsic wetting behaviors of Ag, AgCu and AgCuTi on TC4 were studied by ISD and MSD method. A linear spreading was found in Ag/TC4 system with a rate of ~ 0.14 mm/s. No significant difference in wetting behavior between AgCu/TC4 and AgCuTi/TC4, which can be divided into three stages. The first stage is controlled by the dissolution process at the solid/liquid interface, and the second and third stages are characterized by near linear and linear spreading. The corresponding spreading rates are ~ 0.017 mm/s and ~ 0.004 mm/s, which may be controlled by the solid solution reactions of Cu and TC4 and Ag and TC4, respectively.