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- W2078146460 abstract "In this study, 5083 aluminum alloy plates with a thickness of 3mm are friction stir welded and the microstructure and mechanical properties of the joints were characterized. In particular, tensile behavior of the joints is examined at 77K. It is found that defect-free joints can be obtained under a tool rotational rate of 800rpm and a welding speed of 60mm/min. The friction stirring welds exhibit finer microstructure and higher hardness than that of the base material due to the grain refinement. The ultimate tensile strength (UTS) and elongation of the joints measured at 298K are 316MPa and 21.3%, which are nearly equal to those of the base material. With the tensile test temperature decreasing to 77K, UTS and elongation of both the base material and joints increase. Comparing with tensile testing at 298K, dimples on the fracture surface of the samples tested at 77K are more uniform in distribution. The improvement of the mechanical properties of specimens at low temperature is related to the inactivation of planar slip and the strengthening of strain hardening." @default.
- W2078146460 created "2016-06-24" @default.
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- W2078146460 date "2014-04-01" @default.
- W2078146460 modified "2023-09-23" @default.
- W2078146460 title "Microstructure and Cryogenic Mechanical Properties of AA5083 Joints Prepared by Friction Stir Welding" @default.
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- W2078146460 doi "https://doi.org/10.4028/www.scientific.net/msf.788.243" @default.
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