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bobkoure · 03-23-2005, 08:46 PM

Could you possibly mean something other than cavitation?
IMHO cavitation is when there's enough shear on a liquid to cause it to change state - bubbles on a propeller that's "pushing too hard" for instance.
It's certainly not a good thing, and the shock waves from cavitation-caused bubbles collapsing can cause metal erosion (I've seen pictures but not an actual object damaged by cavitation) but I just can't figure out how this relates to electrolytic corrosion.
BTW, I had thought the electrolytic reaction was primarily with metal ions in the water, but IANAC (I am not a chemist).

03-23-2005, 08:46 PM	#13
bobkoure Cooling Savant Join Date: Feb 2003 Location: USA - Boston area Posts: 798	Could you possibly mean something other than cavitation? IMHO cavitation is when there's enough shear on a liquid to cause it to change state - bubbles on a propeller that's "pushing too hard" for instance. It's certainly not a good thing, and the shock waves from cavitation-caused bubbles collapsing can cause metal erosion (I've seen pictures but not an actual object damaged by cavitation) but I just can't figure out how this relates to electrolytic corrosion. BTW, I had thought the electrolytic reaction was primarily with metal ions in the water, but IANAC (I am not a chemist). Last edited by bobkoure; 03-24-2005 at 09:30 AM. Reason: re-word (added "collapse")