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This paper reviews the current standardized test methods for controlling the possibility of hydrogen embrittlement in high-strength steels as a result of different manufacturing and processing variables such as the use of maintenance chemicals or plating processes. The standards are addressed from the point of view of: (1) basic concepts for acceptance; (2) type of loading; (3) significance of time-to-failure and magnitude of stress; (4) future trends, which include the use of fracture mechanics concepts and methods for small-specimen, accelerated testing. Finally, newly proposed standards and new areas requiring hydrogen embrittlement controls are identified.
sustained load, step load, slow strain rate, tension, bending, fracture mechanics, accelerated testing, electrochemical methods, platings, maintenance chemicals, barnacle electrode
President and principal consultant, L. Raymond & Associates, Newport Beach, CA