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Watch out, guns. You're next. (lemmy.world)

submitted 5 months ago by spicytuna62 to c/[email protected]

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[–] [email protected] 1 points 5 months ago* (last edited 5 months ago) (1 children)

The hotter it gets, the thicker the oxide layer form

This is accurate enough for tempering of most cutting tools, but technically, the oxide layer will continue to grow if you hold a lower temperature for a longer than normal time, and might not fully develop if you reach a higher temperature for a shorter than normal period of time.

This property useful if you are trying to develop a specific color rather than achieve a specific metallurgy. You can heat to a lower temperature for a longer time to develop a deeper, more consistent color.

In my experience, it's easier to develop colors with an oven or propane torch rather than a forge or acetylene.

[–] [email protected] 1 points 5 months ago

Yeah I referenced Clickspring, when oxidizing a part for decorative purposes he would put the part in a brass tray full of brass shavings apparently to function as a thermal mass so that the color comes out evenly.