Al-Cu-Fe alloy
Surface oxidation of a quasicrystalline Al–Cu–Fe alloy: No effect of surface orientation and grain boundaries on the final state
... We have used x-ray photoelectron spectroscopy and Auger electron spectroscopy to examine the characteristics of oxides on two types of quasicrystalline Al–Cu–Fe samples. One type was formed by ...
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Icosahedral Quasicrystal Layer Observed on λ Phase in Al Cu Fe Alloy
... The alloy was cast into a water-cooled copper ...shaped alloy ingot has a diameter of two centimeter and height of one ...as-prepared alloy was then fractured and the naturally exposed surfaces are ...
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Processing Of Al-Cu-Fe Single Grains
... Quasicrystalline alloy systems contain complex phase equilibria that require careful considerations when attempting to prepare these materials in single crystal ...the Al-Cu-Fe alloy ...
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Surface Oxidation of Al-Pd-Mn and Al-Cu-Fe Alloys
... of Al-Pd-Mn and Al-Cu-Fe quasicrystals is ...of Al occurs most readily, but oxidation of other metals also becomes apparent upon going from oxygen in vacuum to immersion in water; which ...
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STM study of the atomic structure of the icosahedral Al Cu Fe fivefold surface
... Finally, we point out that the atomic-resolution STM im- ages of i-Al-Cu-Fe presented in this paper are quite different than those for the i-Al-Pd-Mn 5 f surface. On the latter sur- face, ...
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Cu Segregation around Metastable Phase in Al Mg Si Alloy with Cu
... prepared. The obtained ingots were homogenized at 723 K for 4 days, and were hot- and cold-rolled to sheets of 0.2 mm thickness. Sheets were solution heat-treated at 848 K for 3.6 ks and quenched in chilled water at 277 ...
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Friction Stir Welding of a Commercial 7075 T6 Aluminum Alloy: Grain Refinement, Thermal Stability and Tensile Properties
... aluminum alloy with the following chemical composition: Zn ...0.24, Fe 0.21, Si 0.07, Mn 0.06, Ti 0.02 and balance Al (all in ...The alloy was hot-rolled in plate of 3 mm thick and subjected ...
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Room Temperature Oxidation of Al-Cu-Fe and Al- Cu-Fe-Cr Quasicrystals
... crystalline alloy surfaces of similar composition, in different oxidizing ...of Al-Cu-Fe-Cr quasicrystal and the ternary Al-Cu-Fe quasicrystalline and crystalline ...the ...
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Electrochemical Pitting And Repassivation On Icosahedral AL-CU-FE, And A Comparison With Crystalline Phases
... icosahedral Al- Cu-Fe, and on a series of related alloys and elemental ...the alloy, although the quasicrystalline phase displays an anomalous resistance to ...of Al and Fe, ...
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DSC study of precipitation in an Al–Mg–Mn alloy microalloyed with Cu
... strengthening Al-Cu-Mg alloys from ...the Cu solubility is predicted to be less than ...of Cu available for S phase formation is the presence of Fe, which can combine in some alloys ...
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Softening by Coarsening of Ni Al B2 Phase Particles in Fe Cr Ni Al Zr Alloy
... possible. If the material is subjected to an annealing at a temperature between 873 and 1073 K that is usually used for cold worked ferrous materials, the hardness can not be decreased sufficiently because only the ...
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Corrosion Study of Al-Fe (20 wt%) Alloy in Seawater Alkaline Solutions
... The electrochemical techniques for corrosion tests were potentiodynamic polarization curves, linear polarization resistance (LPR), and electrochemical impedance spectroscopy (EIS). The tests were performed according to ...
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Hardenability and Corroson Resistance of as Cast Fe-9Al-0,6C Alloy
... contrast, Fe-Al alloys exhibit poor toughness and brittle behavior at room ...in Al content to ...in Fe-9 wt-% Al leads low tensile ductility 7 ...
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Magnetic States in Ensemble of Ferromagnetic Nanoparticles in Cu Mn Al Alloy
... The principal criterium to confirm superparamag- netic behavior of nanoparticles is magnetization curve without any remnant magnetization or coercive force. Additional criteria are related to temperature behavior of ...
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Effect of Thermomagnetic Treatment on Structure and Properties of Cu–Al–Mn Alloy
... (wt.%) alloy on the struc- ture, magnetic, and mechanical ...investigated alloy in terms of the morphology of nanoparticle formation of ferromagnetic precipitated phase at 200 °C for 3 h both in magnetic ...
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Influence of Al and Ag on the Devitrification Behavior of a Cu Zr Glassy Alloy
... percentages) were prepared by arc-melting mixtures of Cu having 99.99 mass% purity, Zr having 99.8 mass% purity as well as Al and Ag having 99.9 mass% purity in an argon atmosphere. From these ingots, ...
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Investigations on the Solidification Behavior of Al Fe Si Alloy in an Alternating Magnetic Field
... The solidification behavior of the Al-Fe-Si alloy was investigated by differential scanning calorimeter (DSC) analysis. The flat disc-shaped DSC specimens (0.5 mm thick and 2 mm in diameter) were ...
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Effect of Immersion Time and Temperature on Corrosion Behaviour of Nanocrystalline Al-Fe-Cr Alloy
... performance Al alloys led to the path of exploring new technology to process the required product for ...as Fe, Cr, Nb, Ti etc can be incorporated into the pure aluminium matrix in order to improve the ...
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Phase Field Simulation of Phase Transformation in Fe Cu Mn Ni Quaternary Alloy
... When we look at the global shape of the Gibbs energy surface, there is a convex part on the Fe-Cu side, which produces a large driving force for the phase separation between the Cu-rich phase and the ...
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Surface Characterization of Amorphous Zr Al (Ni, Cu) Alloys Immersed in Cell Culture Medium
... ratio [Al]/[Zr] as shown in Fig. 5. Therefore, the prefer- ential dissolution of zirconium from the surface oxide film can be promoted by amino acids and proteins. The [Cu] and [Ni] in the surface oxide ...
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