Identification of precipitates in 6013 aluminum alloy (Al –Mg –Si –Cu)
-
C. Barbosa
und
J.-L. Delplancke
Abstract
Transmission electron microscopy (TEM) imaging, X-ray energy-dispersive spectroscopy (EDS), and selected-area diffraction (SAD) were used with the aim of identifying the particles present in an AA 6013 alloy (Al –Mg –Si – Cu), that was developed during the last years as an alternative for the AA 6061 alloy (lower Cu content) in the automotive industry. The particles found can be classified in three different groups: silicon particles, two kinds of α(AlFeMnSi) particles, and small structural precipitates. The main interest of the AA 6013 alloy is the combined beneficial influences of medium-sized α(AlFeMnSi) dispersoids and structural precipitates. The dispersoids improve the fracture toughness by limiting grain growth. The β" phase (precursor of the β Mg2Si phase) and Q' (precursor of the Q–Al5Cu2Mg8Si7 quaternary phase) lead to a higher yield strength than for other 6XXX alloys.
One of the authors (C. B.) is thankful to CAPES (Brazilian Foundation for Education Support) for financial support to develop this work. We would like to thank the technical staff of ULB (R. D’Haens, V. Werts, and D. Corbet) and UFRJ (L. R. Guzela, J. C. V. Silva, and J. Belmiro) for their help in sample preparation. We also acknowledge Eninco Ltd. for supplying the 6013 alloy extruded products
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© 2002 Carl Hanser Verlag, München
Artikel in diesem Heft
- Frontmatter
- Articles/Aufsätze
- Strain rate dependence of the deformation mechanisms in a fully lamellar γ-TiAl-based alloy
- Experimental and thermodynamic assessment of the Fe –Gd–Zr system
- Phase diagram of the Fe –Co –Ti system at 1073 K
- Copper concentration inside Guinier-Preston I zones formed in an Al –Cu alloy
- Identification of precipitates in 6013 aluminum alloy (Al –Mg –Si –Cu)
- Redistribution of phosphorus and carbon in steel weldments
- Microstructure and compressive properties of in situ synthesized TiC/Ti composites
- Effect of Al on the glass forming ability of Zr–Ni –Cu–Al alloys
- Fcc-hcp transformation-related internal friction in Fe –Mn alloys
- High-temperature stress and strain partitioning in duplex stainless steel
- Load sequence effects in the high cycle fatigue of two ferrite-pearlite microalloyed steels
- Characterization of intermetallic compounds formed during the interfacial reactions of liquid Sn and Sn– 58Bi solders with Ni substrates
- Notifications/Mitteilungen
- Personal/Personelles
Artikel in diesem Heft
- Frontmatter
- Articles/Aufsätze
- Strain rate dependence of the deformation mechanisms in a fully lamellar γ-TiAl-based alloy
- Experimental and thermodynamic assessment of the Fe –Gd–Zr system
- Phase diagram of the Fe –Co –Ti system at 1073 K
- Copper concentration inside Guinier-Preston I zones formed in an Al –Cu alloy
- Identification of precipitates in 6013 aluminum alloy (Al –Mg –Si –Cu)
- Redistribution of phosphorus and carbon in steel weldments
- Microstructure and compressive properties of in situ synthesized TiC/Ti composites
- Effect of Al on the glass forming ability of Zr–Ni –Cu–Al alloys
- Fcc-hcp transformation-related internal friction in Fe –Mn alloys
- High-temperature stress and strain partitioning in duplex stainless steel
- Load sequence effects in the high cycle fatigue of two ferrite-pearlite microalloyed steels
- Characterization of intermetallic compounds formed during the interfacial reactions of liquid Sn and Sn– 58Bi solders with Ni substrates
- Notifications/Mitteilungen
- Personal/Personelles
