SYMPOSIA PAPER Published: 01 January 1973
STP35444S

Neutron Irradiation Damage in a Precipitation-Hardened Aluminum Alloy

Source

A 6061 aluminum alloy target sleeve from the high flux isotope reactor, originally in a precipitation-hardened condition, was examined for neutron radiation damage after exposure to a maximum fast fluence of 9.2 × 1022 n/cm2 (E > 0.1 MeV) and a thermal fluence of 1.38 × 1023 n/cm2 at 60 C (140 F). Voids and a transmutation-produced silicon precipitate were found to cause about 1.1 percent internal swelling; a surface oxide scale contributed additional swelling. Irradiation-induced strength increases were measured at test temperatures in the range 25 to 200 C (77 to 392 F) and are accounted for in terms of the observed silicon precipitate and an associated dislocation structure. There was also a loss of ductility that was most severe at 200 C. The fracture mode appeared to remain transgranular over the range of test temperatures.

Author Information

King, RT
Australian Atomic Energy Commission Research Establishment, Lucas Heights, N. S. W., Tenn.
Jostsons, A
Australian Atomic Energy Commission Research Establishment, Lucas Heights, N. S. W., Tenn.
Farrell, K
Australian Atomic Energy Commission Research Establishment, Lucas Heights, N. S. W., Tenn.
Price: $25.00
Contact Sales
Related
Reprints and Permissions
Reprints and copyright permissions can be requested through the
Copyright Clearance Center
Details
Developed by Committee: E10
Pages: 165–180
DOI: 10.1520/STP35444S
ISBN-EB: 978-0-8031-4627-3
ISBN-13: 978-0-8031-0328-3