Electron microscopy studies of the age-hardening behaviors in 6005A alloy and microstructural characterizations of precipitates

Yang, Wenchao; Huang, Lanping; Zhang, Ruirong; Wang, Mingpu; Zhou, Li; Jia, Yanlin; Lei, Ruoshan; Sheng, Xiaofei

doi:10.1016/j.jallcom.2011.11.074

Cited by 60 publications

(34 citation statements)

References 41 publications

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“…2. Two kinds of particles formed after supersaturation and annealing were featured -rod-shaped with size 50-200 nm and containing majority of Al, Mg, Si, Cu, can be distinguished as a Q phase (Al 3 Mg 9 Si 7 Cu 2 ) [5,6,[9][10][11]. Moreover in undeformed and non-annealed and undeformed and annealed in 260…”

Section: Resultsmentioning

confidence: 99%

“…• C samples needle-shaped precipitates were observed and can be considered as metastable β (β -Mg 5 Si 6 , β -Mg 9 Si 5 [6])and Q (Q -Al 38 Mg 8.6 Si 7 Cu 1 [6]) phases. They are marked in Fig.…”

Section: Resultsmentioning

confidence: 99%

“…• , respectively and both phases have HZ P6 space group [6]). The transformation of Q phase into Q could be noticed by determination of shape and size of particles.…”

Section: Resultsmentioning

confidence: 99%

“…Although there are some works about the precipitations during ageing [2,3,[4][5][6], there are no consistent works about the particles transformations during recrystallizations annealing of this alloy and deconvolution of the overlapped processes.…”

Section: Introductionmentioning

confidence: 99%

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Characterization of Precipitates in Aluminium Alloy 6013 after Cold-Rolling and Annealing

Bieda

Jarzębska

2016

Acta Phys. Pol. A

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The aim of the present work was to observe changes in precipitations during annealing after cold-rolling. Series of the samples from cold-rolled AA6013 were prepared and compared to undeformed samples. The samples were annealed at the temperatures equal to 260, 490• C for undeformed state and at 280, 360, and 530• C for cold-rolled state. For investigation thin foils were prepared. Chemical composition and crystal structure of precipitates was analysed and described using transmission electron microscopy imaging, X-ray energy-dispersive spectroscopy and selected-area diffraction techniques. The researches indicated that low annealing temperatures caused dissolution of metastable β and Q phases. With increasing temperature there also occurred growth of Q phase. At highest annealing temperatures there were noticed precipitations of β phase again. Microstructural observation also revealed an impact of those particles on recrystallization processes.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

“…• , respectively and both phases have HZ P6 space group [6]). The transformation of Q phase into Q could be noticed by determination of shape and size of particles.…”

Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Characterization of Precipitates in Aluminium Alloy 6013 after Cold-Rolling and Annealing

Bieda

Jarzębska

2016

Acta Phys. Pol. A

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“…8c, which verifies that the lying precipitate is b 00 , and the b 00 precipitate is coherent with the a-Al matrix along the b-axis. The needle-like b 00 precipitate provides peak strengthening effect [29,30], which indicates that the T6 heat-treated Al-xSi-0.45Mg alloys are in the peak strengthening state. Figure 9a, b shows the tensile stress-strain curves and tensile properties of the Al5Ti1B-refined Al-xSi-0.45Mg alloys, after T6 heat treatment.…”

Section: Microstructure After Heat Treatmentmentioning

confidence: 98%

Si poisoning and promotion on the microstructure and mechanical properties of Al–Si–Mg cast alloys

Dong

2018

J Mater Sci

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Hypoeutectic Al-xSi-0.45Mg (x = 6.5, 7.5, 8.5, 9.5) alloys were refined by Al5Ti1B containing TiB 2 and Al3Ti3B containing TiB 2 and AlB 2 , respectively. With increasing Si, Si poisoning on TiB 2 results in the obvious coarsening of primary a-Al in Al5Ti1B-refined alloys from 350 ± 40 to 400 ± 50, 475 ± 50 and 560 ± 80 lm, and the competition between Si promotion on AlB 2 and Si poisoning on TiB 2 leads to the slight coarsening of primary a-Al in Al3Ti3B-refined alloys from 215 ± 30 to 265 ± 35, 265 ± 30 and 315 ± 25 lm. After T6 heat treatment, with increasing Si, the yield strength (YS) of Al5Ti1B-refined alloys increases from 294 ± 2 to 299 ± 2, 304 ± 1 and 309 ± 2 MPa, and the elongation first increases from 3.5 ± 0.8 to 4.5 ± 1.0 and 7.8 ± 1.4%, after decreases to 5.5 ± 1.2%, while the YS of the Al3Ti3B-refined alloys increases from 300 ± 1 to 305 ± 2, 312 ± 1 and 317 ± 2 MPa, and the elongation increases from 6.1 ± 1.1 to 8.5 ± 1.2, 11.8 ± 1.5 and 12.1 ± 1.6%. The increase in the secondary phase and precipitation strengthening results in the increase in strength with increasing Si. With increasing Si, the decrease in porosity formation by decreasing solidification interval and increasing fluidity is superior to the increase in porosity formation by slightly coarsening grain size, which leads to the increase in ductility in the Al3Ti3B-refined alloys, while the competition between porosity decreasing and increasing factors leads to the inverted 'V'-shaped evolution of ductility in the Al5Ti1B-refined alloys.

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Intergranular corrosion effect on fatigue behavior of dissimilar 6005A‐5083 aluminum alloys weld joints

Zhao

Wang

et al. 2022

Materials & Corrosion

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The effects of the intergranular corrosion (IGC) defect depth on the high circle fatigue performance of tungsten inert gas (TIG)‐welded joints of 6005A–5083 dissimilar aluminum alloys were investigated. After soaking in different IGC solutions for 72 h, corrosion defects of different depths were generated in various areas of the specimen surfaces. It was found that the 5083 base metal exhibited the poorest corrosion resistance, while the welded metal displayed the best corrosion resistance. Fatigue tests carried out after precorrosion revealed that when the IGC depth was shallow, the weld defects on the weld metal were the main source of cracking for fatigue extension. However, when the IGC depth in the 5083 base metal was >248 μm, the corrosion defect acted as the origin of the fatigue crack, and the fatigue life of the sample was significantly reduced. This was attributed mainly to the local high‐stress field at the tip of the corrosion defect. Finally, a corrosion fatigue crack expansion model was established to analyze the influence of the corrosion defect depth on the fatigue lives of welded joints.

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Electron microscopy studies of the age-hardening behaviors in 6005A alloy and microstructural characterizations of precipitates

Cited by 60 publications

References 41 publications

Characterization of Precipitates in Aluminium Alloy 6013 after Cold-Rolling and Annealing

Characterization of Precipitates in Aluminium Alloy 6013 after Cold-Rolling and Annealing

Si poisoning and promotion on the microstructure and mechanical properties of Al–Si–Mg cast alloys

Intergranular corrosion effect on fatigue behavior of dissimilar 6005A‐5083 aluminum alloys weld joints

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