Abstract: A composite thermostat metal (bimetal) is disclosed in which a layer of strain hardenable aluminum is bonded to a layer of metal of relatively low coefficient of thermal expansion.
Abstract: The surface of manganese alloys is protected from corrosion by directly exchanging the manganese on the surface of the alloy with a more noble metal, such as nickel, by intrinsic voltaic couple deposition. The invention finds particular utility in protecting manganese alloys from corrosion when used as a thermostat metal.