Characterization of the interaction layer in diffusion couples U-7 wt.%Mo/Al 6061 alloy at 550 deg. C and 340 deg. C

Journal Article · Sat Aug 15 00:00:00 EDT 2009 · Materials Characterization

DOI:https://doi.org/10.1016/J.MATCHAR.2009.02.010· OSTI ID:22066116

Arico, S F; Balart, S N ^[1]; Gribaudo, L M ^[1]

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1. Departamento Materiales, GAEN-GIDAT-CNEA, Av. Gral. Paz 1499, B1650KNA, San Martin (Argentina)

Solid state reaction between U-7 wt.%Mo and Al 6061 alloys at 550 deg. C and 340 deg. C was characterized in chemical diffusion couples made by Friction Stir Welding. Results were obtained from optical and scanning electron microscopy, electron probe microanalysis and X-ray diffraction. At 550 deg. C the interaction layer in {gamma}U(Mo)/Al 6061 is formed by U(Al,Si){sub 3} phase but when {gamma}U(Mo) cellular decomposition occurs, UAl{sub 3} and Al{sub 43}Mo{sub 4}U{sub 6} also appear in the interaction layer. At 340 deg. C the use of X-ray diffraction with synchrotron radiation made it possible to analyze the interaction layer. It was found that it is only formed by U{sub 3}Si{sub 5} phase with its cell volume enlarged respect to the original one.

• OSTI ID: 22066116
• Journal Information: Materials Characterization, Vol. 60, Issue 8; Other Information: Copyright (c) 2009 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1044-5803
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ALUMINIUM ALLOYS
DIFFUSION
ELECTRON MICROPROBE ANALYSIS
FRICTION
LAYERS
MOLYBDENUM ALLOYS
NUCLEAR FUELS
SCANNING ELECTRON MICROSCOPY
SOLIDS
SYNCHROTRON RADIATION
TEMPERATURE DEPENDENCE
URANIUM BASE ALLOYS
WELDING
X-RAY DIFFRACTION