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[PDF] Friction Stir Welding of Aluminium Alloys - Semantic Scholar
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List of symposia The conference will comprise a few plenary lectures, followed by 4 to 5 parallel sessions with invited and regular talks. The organization of abstracts will follow the following list of symposia, with the associated scientific commitee: 1. Donnadieu, W. Lefebvre, M. Perez, C. Sigli This symposium will provide an international forum for experimentalists and theoreticians working in the field of solid-state phase transformations of aluminum alloys.
Deschamps, F. Mas, T. Morgeneyer The symposium will focus on all aspects of strength, plastic deformation, and their consequences on formability of aluminium alloys for different fields of applications aerospace, automotive, beverage cans…. Blanc , J. Lhuissier, R.
Maurice This symposium will explore all aspects of thermomechanical processing of aluminium alloys. Polymer-containing coatings provide aluminium alloy with reliable corrosion protection. To sum up, the SVET and SIET findings described in the present paper show that a composite protective coating reduces the corrosion activity of treated material in chloride-containing media.
Here, the results obtained by means of localized methods enabled us to choose the appropriate mode and multiplicity of PEO-coating polymer treatment. Methods of the protective coating formation on the aircraft aluminium alloy surface were suggested to decrease the electrochemical activity of the weld interface.
Analysis of the corrosion behaviour and protective properties of coated aluminium alloy specimens with a welded joint revealed the following conclusions:. The coating obtained by the PEO method in tartrate-fluoride electrolyte decreases the corrosion intensity of the studied sample. The combined results of Part 1 and Part 2 of this study indicate that SVET and SIET represent useful methods to characterize and to compare corrosion behaviour of the coated and uncoated samples with a welded joint in chloride-containing media.
The data obtained using localized and conventional electrochemical methods enabled us to choose the appropriate multiplicity of PEO-coating treatment with polymer. National Center for Biotechnology Information , U. Journal List Materials Basel v.
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- aluminum alloy applications.
- Aluminium Alloys, Theory and Applications!
Materials Basel. Published online Nov 3. Andrey S. Sinebryukhov , 1 Dmitry V. Mashtalyar , 1, 2 Igor E. Vyaliy , 1 Vladimir S. Egorkin , 1, 2 and Sergey V. Gnedenkov 1, 2.
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Igor E. Find articles by Igor E. Vladimir S. Sergey V. Author information Article notes Copyright and License information Disclaimer. Received Sep 26; Accepted Nov 1. This article has been cited by other articles in PMC. Abstract The high electrochemical activity of the aircraft aluminium alloy with a welded joint and the necessity of the coating formation to protect this material against corrosion as well as to increase the stability of the weld interface in the corrosive medium has been previously established.
Keywords: aluminium alloy, weld interface, plasma electrolytic oxidation, composite polymer-containing coating, SPTFE. Materials and Methods 2. Samples In the present work, just like in [ 1 ], the Al alloy Table 1 with a welded joint was used as a sample for study. Open in a separate window. Electrochemical Measurements 2.
Electrochemical Impedance Spectroscopy and Potentiodynamic Polarization Measurements Electrochemical properties of the specimens with and without protective layers were investigated using the potentiodynamic polarization PDP and electrochemical impedance spectroscopy EIS methods by means of the electrochemical system, WB Solartron Analytical, Hampshire, UK. Figure 1.
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Results and Discussion 3. Figure 2.
Figure 3. Figure 4. Figure 5. Figure 6. Figure 7. Figure 8. Corrosion Performance of the Al Alloy Samples The evolution of the sum of the total cathodic and anodic currents for three aluminium alloy samples without coating, with PEO-layer, with composite polymer-containing coating is shown in Figure 9. Figure 9. Figure Table 2 Main electrochemical performances of the aluminium alloy include welded joint area samples with different treatment.
Table 3 Calculated parameters of the element of the equivalent electrical circuit for the samples made of the aluminium alloy including the welded joint area with different treatment. Conclusions Methods of the protective coating formation on the aircraft aluminium alloy surface were suggested to decrease the electrochemical activity of the weld interface. Analysis of the corrosion behaviour and protective properties of coated aluminium alloy specimens with a welded joint revealed the following conclusions: The coating obtained by the PEO method in tartrate-fluoride electrolyte decreases the corrosion intensity of the studied sample.
Author Contributions A. Conflicts of Interest The authors declare no conflict of interest.