Tensile behavior of AA3104 aluminum sheets at low deformation degree

• 出 处: 北京科技大学学报（英文版）
• 发表日期: 2004年期
• 关键词: r value yield strength texture AA3104 aluminum sheet tension deformation
• 基金项目: 国家自然科学基金;the National High Tech Research and Development Program of China

The texture of a rolled AA3104 aluminum sheet was measured by the X-ray transmission method. The Lankford values or r values (ratio of plastic strain) and yield strengths in directions of 0, 15, 30, 45, 60, 75, and 90° to RD (rolling direction) of the sheet were tested during tensile loading at a strain of 2%. r values were predicted by the Sachs model and the reaction stress model in consideration of the measured texture. The simulated results indicate that r values calculated by the Sachs model are more exactly approaching with the experimental values on the whole than those predicted by the reaction stress model. The deformation behavior of the AA3104 aluminum sheet reveals characteristic predicted by the Sachs model, which should be resulted from the sheet geometry different from bulk material as well as the low tensile deformation degree.