Radiation Effects, volume 101, issue 1-4, pages 283-299

Microstructure and mechanical properties of medium energy (600-800 MeV) proton irradiated commercial aluminium alloys

W. Lohmann ¹

A Ribbens ¹

W.F Sommer ²

B. N. Singh ³

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a KFA Jülich GmbH (IFF-SNQ) , Postfach 1913, D-5170 , Jülich , West Germany |

b Los Alamos National Laboratory , MS-H838, Los Alamos , NM , 87545 , USA |

c Metallurgy Department, Risφ National Laboratory , Postbox 49, DK-4000 , Roskilde , Denmark |

Publication type: Journal Article

Publication date: 1987-01-01

Taylor & Francis

Journal: Radiation Effects

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ISSN: 00337579

DOI: 10.1080/00337578708224754

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General Engineering

Abstract

Commercial AlMg- and AlMgSi-alloys were irradiated with medium energy (600-800 MeV) protons to a nominal fluence of 3.2 × 1024 p/m2 which yields by calculation a displacement damage of 0.2 dpa and helium and hydrogen generation of 67 and 275 appm, respectively. Post-irradiation tensile testing revealed a very marked degree of irradiation-induced softening in the cold-worked AlMg-alloy as well as in the precipitation-hardened AlMgSi-alloy. The TEM examination of the irradiated specimens showed that neither the cold-work microstructure in the AlMg-alloy nor the G.P. zone type precipitates in the AlMgSi-alloy survive under the irradiation conditions used in the present experiment. Results of complimentary investigations (i.e., hardness measurements, optical microscopy and SEM-fractography) are also presented.

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Radiation Effects

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00337579 (Print)

Microstructure and mechanical properties of medium energy (600-800 MeV) proton irradiated commercial aluminium alloys

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