The texture development of ECAP processed AA1050 aluminum, before and after a final anneal: effect of the initial texture

6th International Conference on Nanomaterials by Severe Plastic Deformation

材料科学;化学

Vega, M.C.V.^1 ; Piva, B.H.^1 ; Bolmaro, R.E.^2 ; Ferrante, M.^3 ; Kliauga, A.M.^3

Materials Science GraduationProgram, São Carlos Federal University, Capus Sorocaba, Sorocaba, Brazil^1

Instituto de Fisica Rosário-IFIR, National University of Rosario, Rosario, Argentina^2

Materials Engineering Department, São Carlos Federal University, São Carlos, Brazil^3

关键词: Annealing textures;    Deformed state;    ECAP;    Initial strains;    Initial textures;    Orientation distribution function;    Texture development;    Thickness reduction;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/63/1/012152/pdf
DOI  :  10.1088/1757-899X/63/1/012152

学科分类：材料科学（综合）

来源: IOP

【 摘 要 】

Equal Channel Angular Pressing (ECAP) can be used to control deformation and annealing textures. The initial texture has a significant role on texture development and intensity after deformation and anneal. In this work AA 1050 Al samples with different initial textures and initial strain of 0.3 were deformed in a I20° ECAP die. Deformation followed route A, yielding equivalents strains of 1 and 3 above the initial. After ECAP one of the samples was rolled to a thickness reduction of 70%. Texture evaluation was performed by x-ray analysis in the as deformed state and after annealing at 350°C for 1 h, by calculating orientation distribution functions. The microstructure was observed by optical and scanning electron microscopy.