| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Vallant, Rudolf
Graz University of Technology
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (29/29 displayed)
- 2024The effect of thermomechanical welding on the microstructure and mechanical properties of S700MC steel weldscitations
- 2024Welding of S1100 Ultra high-Strength Steel Plates with Matching Metal-Cored Filler Wirecitations
- 2023Critical verification of the effective diffusion conceptcitations
- 2022Undermatched Welding of Ultra-High-Strength Steel S1100 with Metal-Cored Wirecitations
- 2022Mechanical and microstructural properties of S1100 UHSS welds obtained by EBW and MAG weldingcitations
- 2022Resistance of Quench and Partitioned Steels Against Hydrogen Embrittlementcitations
- 2020Evaluation of Quenching and Partitioning C20MnSi Steel microstructure
- 2020Hydrogen embrittlement (HE) of advanced high-strength steels (AHSS)
- 2020Electrochemical and structural property of TiSiNb TFSOC on affordable interconnects in proton exchange membrane fuel cell applicationscitations
- 2019Effects of Er and Zr Additions on the As-Cast Microstructure and on the Solution-Heat-Treatment Response of Innovative Al-Si-Mg-Based Alloyscitations
- 2019Friction stir welding of API X70 steel incorporating Ti-dioxidecitations
- 2019Improvement of hydrogen induced stress corrosion cracking resistance of ultra-high strength steel screws and fasteners
- 2018EFFECT OF FRICTION STIR PROCESSING ON CORROSION BEHAVIOR OF CAST AZ91C MAGNESIUM ALLOYcitations
- 2018The effects of friction stir processing on the wear beahvior of cast AZ91C magnesium alloycitations
- 2018Effect of Ti Addition on the Microstructure and Mechanical Properties of Weld Metals in HSLA Steelscitations
- 2018Characterization of localized corrosion of heat treated Er- and Zr-containing A356 alloys in 3.5 wt% NaCl aqueous solutioncitations
- 2017Pitting corrosion behaviour of stainless steel AISI 304 with different tinting colours
- 2016Experimental investigations on single-sided CMT welding of hybrid aluminum-steel blanks
- 2016Experimental investigation and numerical simulation of resistance spot welding for residual stress evaluation of DP1000 steelcitations
- 2016Effect of Friction Stir Welding on Microstructure and Properties of Micro-TiO_2 doped HSLA Steel
- 2015Surface Modification of pure magnesium and magnesium alloy AZ91 by Friction Stir Processingcitations
- 2012Electron beam welding of a TMCP steel with 700 MPa yield strengthcitations
- 2012Artfremdes Fügen von Magnesium im Karosseriebau
- 2012Influence of the Soft Zone on the Strength of Welded Modern HSLA Steelscitations
- 2009Modification of coupling parameters for a more accurate cumerically coupled simulation of the resistance spot welding process
- 2008The influence of Zinc coatings on the electrode wear during resistance spot welding of sheet steel
- 2008Influence of plastic anisotropy on the mechanical behavior of clinched joint of different coated thin steel sheets
- 2008EXPERIMENTAL AND NUMERICAL INVESTIGATIONS OF CLINCHING PROCESSES FOR CPP COATED THIN STEEL SHEETS
- 2006Influence of Niobium on mechanical properties and hot crack susceptibility of Nickel-base cored-wire weld metal type 70/20 and 70/15
Places of action
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article
Surface Modification of pure magnesium and magnesium alloy AZ91 by Friction Stir Processing
Abstract
In recent years an interest in magnesium and magnesium alloys not only for the automotive industry but also for medical applications was increasing due to the low density and good specific strength. Magnesium alloys show good castability but lower ductility and strength than wrought materials. For this reason, refinement of grains and homogenous distribution of intermetallic phases are needed to improve formability and mechanical properties. On the other hand, the degradation of the material by corrosion is influenced by the grain size and phase distribution. This work investigates the microstructure evolution of pure Mg and magnesium alloy AZ91 by friction stir processing (FSP) technique. FSP experiments are carried out by constant force, optimizing the rotation and feed rate to obtain a homogenous microstructure, free of defects stir zone, good surface finishing and stable conditions during the process. The results show that the grain size is affected by the spindle speed. Increasing the number of passes reduces also the size of the grains and the intermetallic phases in the AZ91 alloy. The overlapping of passes between overlapping ratio 0.5 to 1 determines an uniform depth of the stir zone over a larger surface area.Hardness measurements are performed to evaluate the influence of FSP parameters on the mechanical properties. The degradation rate of the studied FSP Mg alloys is determined by hydrogen evolution in corrosion immersion tests, which depend strongly on the phase distribution and grain size.