Abstract
There is growing evidence for hydrogen uptake in aluminum alloys and its contribution to the crack growth of high-strength aluminum alloys, but less evidence for low-strength alloys. This paper summarizes the evidence for hydrogen uptake in a low-strength alloy, AA5083, and its contribution to the stress-corrosion cracking of this alloy. A key factor is the anodic dissolution of grain boundary β phase (Al3Mg2) and the associated hydrogen reduction that accompanies this dissolution.
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For more information, contact R.H. Jones, Pacific Northwest National Laboratory, P.O. Box 999, MSIN p8–15, Richland, WA 99352-0999; (509) 376–4276; fax (509) 376-0418; e-mail rh.jones@pnl.gov.
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Jones, R.H. The influence of hydrogen on the stress-corrosion cracking of low-strength Al-Mg alloys. JOM 55, 42–46 (2003). https://doi.org/10.1007/s11837-003-0225-5
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DOI: https://doi.org/10.1007/s11837-003-0225-5