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A stressed steel O-ring is used by the Douglas Aircraft Company to determine the hydrogen embrittling tendency of various processes. The use of the Douglas stress ring is described for testing processes, such as plating, cleaning, deoxidizing, and paint stripping. The method of selecting the hydrogen sensitivity of the steel used to make the ring is included.
hydrogen embrittlement, high strength steels, cadmium coatings, stresses, plating, baking
Section manager, McDonnnell Douglas Corp., Long Beach, Calif.