H. Kheirabadi, B. Beidokhti, S. Khadivi, A. Davodi
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引用次数: 0
Abstract
The microstructure, mechanical properties and residual stress of dissimilar AA3105/ AA2024 friction stir welds have been investigated. The formation of voids was observed at high rotational speeds and low transverse speeds due to the high weld heat input and abnormal stirring. The precipitate fragmentation was noticeable at higher tool rotational speed. The highest hardness was obtained at the AA2024 side of the joints due to the presence of precipitates. The results showed that the welding transverse speed has more effect on UTS than the rotational speed. Tensile residual stresses were found at the AA2024-T6 side and the welding line; while residual stresses at the AA3105 side were compressive.
期刊介绍：
ASM International''s Journal of Materials Engineering and Performance focuses on solving day-to-day engineering challenges, particularly those involving components for larger systems. The journal presents a clear understanding of relationships between materials selection, processing, applications and performance.
The Journal of Materials Engineering covers all aspects of materials selection, design, processing, characterization and evaluation, including how to improve materials properties through processes and process control of casting, forming, heat treating, surface modification and coating, and fabrication.
Testing and characterization (including mechanical and physical tests, NDE, metallography, failure analysis, corrosion resistance, chemical analysis, surface characterization, and microanalysis of surfaces, features and fractures), and industrial performance measurement are also covered
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