WETTING ANGLE POLYTERMES FOR LEAD-SODIUM MELTS ON REFRACTORY METALS

Abstract

The temperature dependence of the contact angle for Pb - Na melts of different concentrations on Co - Cr, Ni-Cr and stainless steel 25X18H9C2 substrate was studied by the method of a lying drop. Measurements were carried out by a lying drop method in the temperature range from 359 to 800 °C in an atmosphere of pure helium grade A. It is shown that the value of the wetting angle decreases with increasing temperature, wetting thresholds are observed.

Keywords

• wetting angle polytherms
• wetting threshold
• co - cr
• ni - cr
• 25x18h9c2 substrates