It's 100% true for copper. Not sure about brass but more plausible than you'd think
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Replying to @mattyglesias
This study includes brass. The chemistry of this stuff (a rare thing I am qualified to discuss!) is likely such that any copper-containing alloy would show an effect. http://www.clearwater-tec.com/libary/pdf/Paper_Noyce_JHI_066.pdf …
2:48 AM - 16 Apr 2020
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