Wettability of Ti6Al4V on calcia-stabilized zirconia

The wettability between liquid Ti6Al4V alloy and calcia-stabilized zirconia was studied by the self-designed measuring apparatus in argon atmosphere. By means of the testing device, a kinetic and interfacial study on the wettability and spreading behavior of Ti6Al4V alloy melt on calcia-stabilized zirconia is presented. The micrographic observation made on cross sections perpendicular to the interface using map analyses shows that the interfacial reaction occurred at high temperature. However, the contact angles are relative stable and larger than 90 within experimental duration, and the equilibrium contact angle is 110 degrees. The influence of interfacial reaction on the wettability can be explained by the total free energy at the liquid/solid interface. (C) 2012 Elsevier B.V. All rights reserved.