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That's just what a search turned up. From memory Porsche used a nickel-silver alloy to match the heat expansion of the cylinder to the piston (or vice versa), but DuckDuckGo doesn't support the contention.
What I found interesting was that chemical deposition is more uniform than electro-plating. I suspect that's because electroplating is sensitive to the placement of the anode.
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.Without freedom of speech we wouldn't know who all the idiots are. -- anonymous poster
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.Because much of what is in the published literature is nonsense,
and much of what isn’t nonsense is not in the scientific literature.
-- Sabine Hossenfelder
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