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 ...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%. γ 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.展开更多
The development of the recrystallization texture of the alloy AA3104 was investigated by analysis of orientation distribution functions determined by X-ray diffraction,supported by EBSD local texture analysis.A typic...The development of the recrystallization texture of the alloy AA3104 was investigated by analysis of orientation distribution functions determined by X-ray diffraction,supported by EBSD local texture analysis.A typical β-fiber with nearly 20%Bs orientation {011}211 was detected in the final hot rolled sheet.At the beginning of annealing at 350 ℃,the cube component{001}100 got a sharp increase.TEM results show that the growth of both number and size of precipitation appears to inhibit the advantage of Cube orientation {001}100 notably after annealing at 350 ℃ for 15 min.Finally,it comes out to be a random distributed orientation by full recry stallization.展开更多
基金This work was financially supported by the National Nature Science Foundation of China (No.50171014) and the National High-Tech Research and Development Program of China (No.2003AA331080)
文摘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%. γ 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.
文摘The development of the recrystallization texture of the alloy AA3104 was investigated by analysis of orientation distribution functions determined by X-ray diffraction,supported by EBSD local texture analysis.A typical β-fiber with nearly 20%Bs orientation {011}211 was detected in the final hot rolled sheet.At the beginning of annealing at 350 ℃,the cube component{001}100 got a sharp increase.TEM results show that the growth of both number and size of precipitation appears to inhibit the advantage of Cube orientation {001}100 notably after annealing at 350 ℃ for 15 min.Finally,it comes out to be a random distributed orientation by full recry stallization.
