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Thread: Can anyone rate the primochill Typhoon III?

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  1. #11
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    Quote Originally Posted by [XC] riptide View Post
    Sorry buddy... but you don't quite understand it. If the Steel is a noble alloy it means very little corrosion of it, and ANY other metal in the loop. .... the very reason why it IS used in pumps. To corrode it has to be an active metal. Mixing an inactive metal (like your hard steel example) is like mixing plastic with water and copper. ie no effect. Your statement of the farther they are apart = more corrosion is not entirely true. They have to be both active metals.

    The electrical conductivity can and will be provided by the water in the absence of anything else. The current that passes through the water to have the effect of corrosion is so small that it will happen.


    You should try a Zalman reserator with a copper block and tell me there is no corrosion. (I had one with a copper, low restriction GPU block)... the residue settled down the bottom of the reserator itself.
    Guess we will have to agree to disagree as I have seen galvanic corrosion between two grades of stainless. I am going to go with the experts (and nature) on this one. No circuit...no galvanic corrosion. The more noble a metal is the less likely it is to be the anode (the metal that dissolves/corrodes rapidly). Stainless can STILL be the anode if the other metal is even more noble. The water does NOT make it a circuit...

    I will again point to this link:

    http://www.corrosionist.com/Galvanic_Corrosion.htm

    Under the three conditions needed for galvanic corrosion number 2 is:

    Condition 2. The metals must be in electrical contact

    The two different metals must be in electrical contact with each other. This is of course very common. The two metals can be bolted, welded or clamped together, or even just resting against each other.

    Under the how to avoid galvanic corrosion section near the bottom of the page it says:

    Prevent Electrical Contact.

    It is often practical to prevent electrical contact between the dissimilar metals (removal of Condition 2). This may be achieved by the use of nonconducting (eg rubber or plastic) spacers, spool pieces or gaskets, perhaps in conjunction with sleeves around bolts. For the same reason a gap may be left between galvanised roofing and a stainless steel down-pipe.

    Again. Not to get this going into a big argument as the only thing I would fight for is your right to disagree, but without a circuit there can be no flow...and the spice MUST flow =)
    Last edited by BoxGods; 08-24-2009 at 03:07 PM.

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