[TheForge] Spring steel (and other) breaking in mild acid

[peter fels]

Welcome back Kevin;
I cross-posted this on Theforge

This mystery is still mysterious to me.

On Aug 26, 2011, at 5:34 AM, xlch58 at swbell.net wrote:

> On 8/25/2011 9:44 PM, peter fels wrote:
>> That was my first thought, but it was very mild acid and did the same thing to bering races.
>> I've cut and exposed hundreds, if not thousands of coil spring and garage door spring loops to heavy salt corrosion,
>> and seen very , very few failures. A fair # of those were actively flexing in wind powered kinetic pieces.
>> Salt water corrosion selectively seeks out small fatigue cracks.
>> Clyde's results were very odd. He is an excellent observer.
>> 
>> 
> Look up hydrogen embrittlement.
> 
> Charles
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