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      07-27-2020, 05:41 PM   #8
Huz-Z
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Drives: Z4 3.0si, 328 XDrive, X5 35i
Join Date: Aug 2009
Location: Canada

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Quote:
Originally Posted by wdb View Post
I'm in a salty climate and the only spring I ever had fail on me was branded Prodrive (*wave* subiefolk). It had some kind of plasticky coating on the outside, which I imagine once it inevitably cracked, held the brine against the every-flexing steel spring, something which my very slight metallurgical knowledge tells me is a perfect storm for eating through steel.
That’s what us mechanical engineers refer to as a corrosion cell - crevice corrosion. The differential oxygen content of the water combined with dissolved corrosive agents like salt create a perfect storm for inflicting damage to metal. Nasty things for sure.

https://www.nace.org/resources/gener...vice-corrosion

Last edited by Huz-Z; 07-27-2020 at 05:54 PM..
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