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- W1636291353 abstract "Abstract Cold heading (CH) is a fast and simple metal forming process to fabricate small-sized products for industry applications. Deformed microstructure under dynamic heading greatly influences properties of the products. The main objective of this work is to investigate the effect of the deformed microstructure on mechanical properties in the headed part. Consequently, the cold heading under magnetic pulse force was performed with 2A10 aluminum alloy bars. Microstructure and mechanical properties of the headed part were achieved to explore the relationship between microstructure distribution and mechanical properties. Microstructure observation showed that adiabatic shear bands (ASBs) were a remarkable characteristic of headed part, and caused the inhomogeneous distribution of deformation. The brittle Al2Cu phase particles precipitated in the ASBs. The hardness of ASB was significantly higher than that of other zones that attributed to the dual effects of work hardening and precipitation strengthening. Moreover, inhomogeneous microstructure distribution contributed varied mechanical properties in headed part, where the quasi-static compression yield strength (476 MPa) in its edge position was higher than that (395 MPa) in its central zone. And the specific microstructure from different regions of headed part contributed to varied tensile strain, fracture location and fracture mode." @default.
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- W1636291353 date "2016-01-01" @default.
- W1636291353 modified "2023-10-16" @default.
- W1636291353 title "Microstructure and mechanical properties of 2A10 aluminum alloy bar subjected to dynamic heading" @default.
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- W1636291353 doi "https://doi.org/10.1016/j.jmatprotec.2015.09.001" @default.
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