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Article

Evolution of the Material Microstructures and Mechanical Properties of AA1100 Aluminum Alloy within a Complex Porthole Die during Extrusion

1
State Key Laboratory of Mechanical System and Vibration, Shanghai Jiao Tong University, Shanghai 200240, China
2
School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
3
Department of Mechanical Engineering, McMaster University, Hamilton, ON L4S 4L7, Canada
*
Author to whom correspondence should be addressed.
Materials 2019, 12(1), 16; https://doi.org/10.3390/ma12010016
Received: 29 November 2018 / Revised: 9 December 2018 / Accepted: 14 December 2018 / Published: 20 December 2018
(This article belongs to the Special Issue Behavior of Metallic and Composite Structures)
Microchannel tube (MCT) is widely employed in industry due to its excellent efficiency in heat transfer. An MCT is commonly produced through extrusion within a porthole die, where severe plastic deformation is inevitably involved. Moreover, the plastic deformation, which dramatically affects the final property of the MCT, varies significantly from location to location. In order to understand the development of the microstructure and its effect on the final property of the MCT, the viscoplastic self-consistent (VPSC) model, together with the finite element analysis and the flow line model, is employed in the current study. The flow line model is used to reproduce the local velocity gradient within the complex porthole die, while VPSC model is employed to predict the evolution of the microstructure accordingly. In addition, electron backscatter diffraction (EBSD) measurement and mechanical tests are used to characterize the evolution of the microstructure and the property of the MCT. The simulation results agree well with the corresponding experimental ones. The influence of the material’s flow line on the evolution of the orientation and morphology of the grains, and the property of the produced MCT are discussed in detail. View Full-Text
Keywords: microchannel tube (MCT); extrusion; porthole die; microstructure evolution; VPSC model; flow line model microchannel tube (MCT); extrusion; porthole die; microstructure evolution; VPSC model; flow line model
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MDPI and ACS Style

Tang, D.; Fang, W.; Fan, X.; Zou, T.; Li, Z.; Wang, H.; Li, D.; Peng, Y.; Wu, P. Evolution of the Material Microstructures and Mechanical Properties of AA1100 Aluminum Alloy within a Complex Porthole Die during Extrusion. Materials 2019, 12, 16. https://doi.org/10.3390/ma12010016

AMA Style

Tang D, Fang W, Fan X, Zou T, Li Z, Wang H, Li D, Peng Y, Wu P. Evolution of the Material Microstructures and Mechanical Properties of AA1100 Aluminum Alloy within a Complex Porthole Die during Extrusion. Materials. 2019; 12(1):16. https://doi.org/10.3390/ma12010016

Chicago/Turabian Style

Tang, Ding, Wenli Fang, Xiaohui Fan, Tianxia Zou, Zihan Li, Huamiao Wang, Dayong Li, Yinghong Peng, and Peidong Wu. 2019. "Evolution of the Material Microstructures and Mechanical Properties of AA1100 Aluminum Alloy within a Complex Porthole Die during Extrusion" Materials 12, no. 1: 16. https://doi.org/10.3390/ma12010016

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