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Rifles, Reloading, Optics, Equipment
Reloading
Bullet cold weld to brass, real or myth?
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<blockquote data-quote="ntsqd" data-source="post: 1679379" data-attributes="member: 93138"><p><u>If</u> the mechanism is galvanic corrosion then ambient moisture is what drives the process. Two dissimilar metals in 100% <u>dry</u> contact will not galvanically corrode. Add .05% relative humidity and the process starts.</p><p>Looking at this table: <a href="http://www.designbyinitiative.com/files/8514/2711/8760/Galvanic_Table.pdf" target="_blank">http://www.designbyinitiative.com/files/8514/2711/8760/Galvanic_Table.pdf</a> the galvanic potential between yellow brass and some Cupro-nickels is only about .2 eV, but to others it is about .4eV. I would not expect much activity from the first group, but I would from the second group.</p></blockquote><p></p>
[QUOTE="ntsqd, post: 1679379, member: 93138"] [U]If[/U] the mechanism is galvanic corrosion then ambient moisture is what drives the process. Two dissimilar metals in 100% [U]dry[/U] contact will not galvanically corrode. Add .05% relative humidity and the process starts. Looking at this table: [URL]http://www.designbyinitiative.com/files/8514/2711/8760/Galvanic_Table.pdf[/URL] the galvanic potential between yellow brass and some Cupro-nickels is only about .2 eV, but to others it is about .4eV. I would not expect much activity from the first group, but I would from the second group. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Bullet cold weld to brass, real or myth?
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