Thermal and mechanical analyses of an EN AW 6082 alloy with static and dynamic precipitations
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Ş. Hakan Atapek
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Yiğit A. Erdoğan
Yiğit A. Erdoğan graduated from Kocaeli University, Department of Metallurgical and Materials Engineering, Turkey. He received his MSc degree from Kocaeli University, Department of Metallurgical and Materials Engineering. He worked as R&D Manager at Onat Profile Co. and he is currently working as Global Quality Engineer at Teklas Bulgaria EAD.
Abstract
In this study, the microstructural characterization of a solution annealed and quenched EN AW 6082 alloy was performed that was subjected to cold deformation (10 and 30%) and equal channel angular pressing. The findings showed that a band structure was formed, the crystallite size decreased significantly as well as that the dislocation density and stored energy increased due to severe plastic deformation. Static and dynamic precipitations in the processed alloys were characterized by thermal analyses and it was observed that precipitation sequence in heating shifted to lower temperatures due to increased kinetics caused by deformation. Increased precipitation kinetics due to severe plastic deformation could be seen in the variation of hardness during aging at 190 °C and the peak hardness of deformed alloys shifted to shorter aging times. The peak hardness of conventional heat-treated alloy was attained as 122 HV0.5 for 300 min, whereas the same hardness was achieved for an aging time of 45 min in the 30% cold-deformed alloy. By severe plastic deformation, the highest peak hardness was obtained as 130 HV0.5 after aging for 15 min. Microstructural characterization on overaged alloys indicated that the alloy having the highest stored energy had the highest tendency for recrystallization.
Funding source: Scientific Research Projects Coordination Unit of Kocaeli University
Award Identifier / Grant number: 2016/027 HD
About the author
Yiğit A. Erdoğan graduated from Kocaeli University, Department of Metallurgical and Materials Engineering, Turkey. He received his MSc degree from Kocaeli University, Department of Metallurgical and Materials Engineering. He worked as R&D Manager at Onat Profile Co. and he is currently working as Global Quality Engineer at Teklas Bulgaria EAD.
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Author contributions: All the authors have accepted responsibility for the entire content of this submitted manuscript and approved submission.
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Research funding: The financial support given by Scientific Research Projects Coordination Unit of Kocaeli University under the project no. 2016/027 HD.
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Conflict of interest statement: The authors declare no conflicts of interest regarding this article.
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Articles in the same Issue
- Frontmatter
- Surface states by grinding thin strips of electrochemically deposited nanocrystalline nickel-iron
- Design optimization of armored wheeled vehicle suspension lower control arm
- Influence of residual oxygen during laser beam welding under vacuum
- Determining the structural life of an electric vehicle battery from road loads
- Cavitation resistance of Stellite 21 coatings tungsten inert gas (TIG) deposited onto duplex stainless steel X2CrNiMoN22-5-3
- Dynamic fracture behavior of 11MnNiMo steel under medium-low loading rate
- High-velocity impact performance of Ramor 500 armor steel
- Thermal and mechanical analyses of an EN AW 6082 alloy with static and dynamic precipitations
- Improving the fatigue life of produced dental implants by the thread-rolling process
- Effect of thermomechanical processing on the mechanical properties of CuZn10 alloy
- Effects of filler material selection on the microstructural, mechanical and corrosion properties of TIG welded AISI/SAE 304L stainless steel sheets and rings
- A new hybrid artificial hummingbird-simulated annealing algorithm to solve constrained mechanical engineering problems
- A hybrid engineering algorithm of the seeker algorithm and particle swarm optimization
- Application of a modular topology optimization framework to an aerospace bracket design
