|About this Abstract
||2018 TMS Annual Meeting & Exhibition
||Aluminum Alloys, Processing and Characterization
||Investigation of Effect of Aging Treatment on Deformation Behavior of Al-Mg-Si Alloy Using Quasi-2D Polycrystalline Sample
||Jiang Zheng, Lin Zhu, Haoge Shou, Jinsong Rao
|On-Site Speaker (Planned)
Plastic deformation behavior of coarse-grained Al-Mg-Si alloy with various aging treatments was investigated experimentally at the individual grain level using flat uniaxial tensile specimens consisting of a single layer of millimeter-sized grains. The initial local crystallographic orientations of the grains and their evolutions with different strains were measured by electron backscattered diffraction (EBSD) analysis. Additionally, the slip trace evolutions in the samples were also analyzed. It is found that Al-Mg-Si alloy with different aging treatment exhibited different deformation behavior. Plastic deformation fields in a solution treated specimen are homogeneous, which has the best ductility. In addition, deformation occurs heterogeneous in the specimen aged at 175℃ for 12h, and becomes more inhomogeneous in the sample aged at 200℃ for 1h, which shows the lowest ductility. The interaction modes between the precipitates and dislocation in the heat treated specimens are discussed according to transmission electron microscopy (TEM) observation.
||Planned: Light Metals