In situ deformation behavior study during uniaxial tension of aluminium alloys using a high resolution EBSD

Abstract

Microstructural evolutions and crystal rotation behaviors taking place in polycrystalline 1050 Al alloy were studied in uniaxial tensile deformation at room temperature. Specimens were elongated by an in-situ deformation stage equipped in a high resolution electron backscattered diffraction (HR-EBSD). Variations of the grain boundary characteristics such as misorientation and density of grain boundary due to uniaxial tensile deformation were analyzed statistically using HR-EBSD. A large number of grains in polycrystalline Al alloy were rotated during deformation and divided into subgrains due to multiple slip, and crystal rotation angles were less than 20degrees.