Annual Progress Report on Fuel Element Development for Fiscal Year 1961

Performance of Aluminum in Research Reactors

“…The most common aluminum cladding alloys are 1100 and the stronger 6061. Other alloys have been investigated in neutron irradiations, 11 namely 5052; X800N, where N is 1, 2, or 3 and whose compositions are Al-$1Ni-$1Fe; and two sintered aluminum powder alloys, M257 and M470, which were fabricated by ball milling flake powder of 1100Al in air until it contained a dispersion of 6% and 10% Al 2 O 3 , respectively, then consolidating by pressing, sintering, and hot rolling. The Mxxx alloys were deemed to be no better than 1100 and 6061 types.…”