Cavitation for 2 phase service

I would think cavitation could occur in any mix of fluids if the pressure is reduced to the point one or more fluids present will go to gas form, as you go below its vapor pressure. This is what happens with water as it cavitates around a propeller, whether you are stopping or trying to drive it faster than conditions allow.

I would think it could happen in any place where there is fluid flow and something to cause turbulence with enough disruption caused by sufficient flow around or along a disturbing surface.

Cavitation can be a problem with any liquid, when the local pressure becomes lower than the vapor pressure at the operating temp.

It is a more common problem with water, but especially with liquids like hot oil running at high temps, cavitation can be a very significant problem.

Mixed fluids can also see cavitation, the conditions just have to be right.