Aluminum alloys offer significant advantages for hydrogen service such as low weight, improved uniformity of properties relative to forged austenitic stainless steels, and immunity to embrittlement in the presence of dry hydrogen. For these reasons aluminum alloys are now being considered for high-pressure hydrogen isotope pressure vessel applications where forged stainless steels have been the standard materials of construction for decades. In particular, alloy AA2219 is being evaluated due to its excellent weldability, microstructural stability, and good mechanical and fracture toughness properties. Prototype AA2219 pressure vessels have been fabricated and tested, including electron beam weld development, weld hardness and tensile testing prior to and after post-weld heat treatment, and burst testing. The design, manufacture, and testing of AA2219 pressure vessels will be discussed, including an ongoing long-term shelf storage program where pressure vessels are loaded with gaseous hydrogen at pressure of 103 MPa (85% of the burst pressure for these vessels).
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ASME 2014 Pressure Vessels and Piping Conference
July 20–24, 2014
Anaheim, California, USA
Conference Sponsors:
- Pressure Vessels and Piping Division
ISBN:
978-0-7918-4604-9
PROCEEDINGS PAPER
Fabrication and Testing of Electron Beam Welded Alloy AA2219 Aluminum Pressure Vessels for High-Pressure Hydrogen Service
Dorian K. Balch,
Dorian K. Balch
Sandia National Laboratories, Livermore, CA
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Steve H. Goods,
Steve H. Goods
Sandia National Laboratories, Livermore, CA
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Chris San Marchi
Chris San Marchi
Sandia National Laboratories, Livermore, CA
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Dorian K. Balch
Sandia National Laboratories, Livermore, CA
Steve H. Goods
Sandia National Laboratories, Livermore, CA
Chris San Marchi
Sandia National Laboratories, Livermore, CA
Paper No:
PVP2014-28858, V06BT06A025; 9 pages
Published Online:
November 18, 2014
Citation
Balch, DK, Goods, SH, & San Marchi, C. "Fabrication and Testing of Electron Beam Welded Alloy AA2219 Aluminum Pressure Vessels for High-Pressure Hydrogen Service." Proceedings of the ASME 2014 Pressure Vessels and Piping Conference. Volume 6B: Materials and Fabrication. Anaheim, California, USA. July 20–24, 2014. V06BT06A025. ASME. https://doi.org/10.1115/PVP2014-28858
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