화학공학소재연구정보센터
Materials Science Forum, Vol.408-4, 845-850, 2002
Formation of recrystallization textures after hot working of AA2014 and AA6063
This paper involves the investigation of the material response of two commercial aluminum alloys, 2014 and 6063, to thermo-mechanical processing parameters and the subsequent effects on the recrystallization behavior. Samples of the 2014 and 6063 alloys were hot rolled at 350, 400, 480, and 500degreesC to reductions of 50% and 75%. The samples were subsequently solutionized at 500degreesC (2014) and 525degreesC (6063) for 1 hour. Light Optical Microscopy (LOM) was performed which showed increased recrystallization kinetics in the 6063 alloy relative to the 2014 alloy. The solutionized samples of the 2014 alloy showed a banded microstructure indicating recrystallization was inhibited in the normal direction. The microtexture of the samples was characterized using Electron Backscatter Diffraction (EBSD). Orientation Distribution Functions (ODF) and pole figures showed that the 6063 alloy displayed a copper rolling texture {112}<111> and an increasing cube recrystallization texture {001}<100> as the deformation temperature was increased. At low deformation temperatures, the 2014 alloy had a mixed Goss {110}<001> and Brass {011}<211> texture, while at higher temperatures and reductions the Brass component was very strong. The 2014 recrystallized texture was predominantly a cube texture rotated 45 degrees about the normal direction.