Effect of the Cu Alloying on the Precipitation Behavior of Al-Mg-Si Alloys

In the present study, the effect of varying amounts of copper (Cu) addition on the kinetics of the precipitation behavior of heat treatable 6000 series Al-Mg-Si alloys have been investigated by means of scanning electron microscopy (SEM), differential scanning calorimetry (DSC), X-ray diffraction (XRD) and Vickers microhardness measurements. Presence of Cu can greatly enhance the mechanical properties, particularly strength and hardness by refining the precipitate distribution and increasing the stability of GP zones. Alloys containing varying amounts of Cu (Cu content more than 2.5 wt%) were cast into copper mold using an induction casting system under Argon atmosphere, and their final chemical compositions were determined by optical emission spectroscopy. As-cast alloys were homogenized at 500°C for 30 min which included heating from room temperature at a rate of 20°C/min followed by quenching. Characterization studies were focused on the temperatures where phase changes occur as determined by the peaks appearing in DSC curves to better understand the precipitation behavior of nano-scale metastable precipitates at different temperatures


Effect of Sn Alloying on the Diffusion Bonding Behavior of Al-Mg-Si Alloys
Atabay, SILA ECE; Esen, Ziya; Dericioğlu, Arcan Fehmi (2017-07-01)
Effect of Sn as an alloying element on the diffusion-bonding behavior of Al-Mg-Si alloy has been studied by means of differential scanning calorimetry (DSC), X-ray diffraction (XRD), scanning electron microscopy (SEM) and mechanical testing of the diffusion-bonded joint. XRD results revealed the formation of Mg2Sn and (Sn) phases during solidification following induction casting. DSC results showed local liquid (Sn) formation during the bonding process for Sn-containing alloys, where its amount was found to...
Effect of Sm on thermal and mechanical properties of Cu-Zr-Al bulk metallic glasses
Sikan, Fatih; Atabay, S. E.; Motallebzadeh, A.; Özerinç, Sezer; Kalay, I.; Kalay, Yunus Eren (Elsevier BV, 2019-01-16)
The effect of rare-earth (Sm) microalloying on the thermal stability and phase selection along with the effect of nanocrystallization on the mechanical properties of amorphous melt-spun ribbons of Zr50Cu40Al10, Zr49Cu39.2Al9.8Sm2 and Zr48Cu38.4Al9.6Sm4 alloys were investigated using differential scanning calorimetry (DSC), X-ray diffraction (XRD), transmission electron microscopy (TEM), Vickers and nanoindentation hardness tests and micropillar compression analysis. XRD and TEM analyses showed that all samp...
Effects of Addition Order of the Components on Polyamide-6/Organoclay/Elastomer Ternary Nanocomposites
Isik-Gulsac, Isil; YILMAZER, ÜLKÜ; Bayram, Göknur (2013-03-01)
The effects of addition order of the components for ethyleneglycidyl methacrylate (E-GMA) copolymers and two types of organoclays (Cloisite (R) 15A and Cloisite (R) 30B) on morphology and mechanical properties of polyamide-6/elastomer/organoclay ternary nanocomposites were investigated by x-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM) analyses, melt flow index (MFI) measurements, differential scanning calorimetry (DSC), and tensile and impact tests. Four ...
Effect of thermal neutron irradiation on the elastic constants of tourmaline
Özkan, H. (Informa UK Limited, 1987-2)
The effect of thermal neutron irradiation due to the B10(n, α)Li7 reaction on the elastic wave velocities and the elastic moduli of tourmaline crystals has been studied. Oriented tourmaline samples have been irradiated with thermal neutrons to 7.6 × 1018n/cm2 and the elastic wave velocities determined by ultrasonic measurements. The elastic wave velocities are not affected by thermal neutron irradiation below 8 × 10l7n/cm2, effects starting to appear at approximately 1 × l018n/cm2 with more important decrea...
OZKAN, H; ALBISS, BA; HAMDAN, N; MENARD, A (Springer Science and Business Media LLC, 1994-12-01)
The effect of gamma-irradiation and silver doping on the properties of YBCO superconductors has been studied by electrical resistance measurements and x-ray diffraction techniques. The zero-resistance superconducting transition temperature of (YBCO)(1-x)Ag-x systematically increase by about 2 K with an increase of Ag content up to x = 0.04. Further increase in Ag content decreases the transition temperature. The normal-state resistance decreases up to a factor of 3.4 with an increase of Ag content. No signi...
Citation Formats
S. Özer and A. F. Dericioğlu, “Effect of the Cu Alloying on the Precipitation Behavior of Al-Mg-Si Alloys,” presented at the IMMC’19 International Metallurgy Materials Congress, (25 - 27 Ekim 2018), 2018, Accessed: 00, 2021. [Online]. Available: https://hdl.handle.net/11511/87832.