Influence of high pressure hydrogen on the tensile and fatigue properties of a high strength Cu–Al–Ni–Fe alloy |
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| Authors: | Thorsten Michler Jörg Naumann |
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| Affiliation: | 1. Adam Opel GmbH, Ruesselsheim, Germany;2. BMW AG, Munich, Germany |
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| Abstract: | Aluminum bronze CW307G was tensile and fatigue tested in 10 MPa hydrogen, 10 MPa helium and 0.1 MPa air atmosphere. Neither tensile nor S–N fatigue properties were affected when testing in H2. Fractography on the fatigue specimens revealed similar striation morphology on the specimens tested in H2 and He. Dissociative chemisorption as well as hydrogen absorption were identified as potential rate limiting processes being responsible for the impassivity to HEE of this alloy. |
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| Keywords: | Hydrogen environment embrittlement Aluminum bronze Copper alloy |
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