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Interaction of Copper-Containing Rotating Band Metal with Gun Bores at the Environment Present in a Gun Tube
WATERVLIET ARSENAL NY
Pagination or Media Count:
The nickel-based, cobalt-containing high temperature alloys now being considered for barrels for rapid-firing aircraft weapons could be seriously affected by interaction with copper-containing rotating band metal. Copper could interact with the bore metal at the high operating temperatures planned for the new alloy barrels with the formation of low-melting, easily-eroded surface layers. 4340 Steel, Pyromet X-15, C. G. 27, Rene 41, and Uidmet 700 were studied with sessile-drop experiments and firing experiments which simulated conditions in the bore of a rapid-firing gun. It was found that, although C. G. 27, Rene 41, and Uidmet 700 all interacted strongly with copper in sessile-drop experiments, only Rene 41 showed any interaction with copper alloy in the firing experiments.
APPROVED FOR PUBLIC RELEASE