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The 43rd William Blum Lecture, Hydrogen Embrittlement of High Strength Steel: The Russian Approach

Usually, mechanical tests are required in studies of hydrogen embrittlement of steel. A new method has been developed that separately measures the hydrogen absorbed in the steel and in the coating. With this method, three sources of hydrogen absorption by the steel have been found: (1) at bare areas of the steel; (2) at the coating surface and (3) during plating. In this work, hydrogen absorption has been examined on several coatings, including cadmium, cadmium-titanium, zinc, zinctitanium and chromium. The hydrogen distribution was studied in these systems in terms of how it gets there and how it can be relieved at elevated temperatures. Proposed mechanisms and their practical implications are also presented.

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