材料科学
合金
极限抗拉强度
微观结构
黄铜
冶金
扫描电子显微镜
变形(气象学)
复合材料
6063铝合金
光学显微镜
脆性
拉伸试验
可塑性
纹理(宇宙学)
维氏硬度试验
铜
人工智能
图像(数学)
计算机科学
作者
Chunqi Yu,Yicheng Feng,Lei Wang,Jinlai Fu,Fuwei Kang,Sicong Zhao,Erjun Guo,Bing Ma
标识
DOI:10.1016/j.mtcomm.2022.103368
摘要
Strength and plasticity are essential properties in Al-Cu-Mg alloy for the aerospace, automotive, and weapon industries. Both cold rolling and pre-deformation are critical practices to obtain high strength as well as high plasticity. In this study, the microstructure and properties of the Al-Cu-Mg alloy with various deformation treatments were studied by using optical microscope, scanning electron microscope, electron back scatter diffraction technique, transmission electron microscope, Vickers hardness tester, and tensile tester. The results show that the brittle T phases can cause stress concentration which is not conducive to the plasticity of the alloy. The tiny GPB zones distributed homogeneously can increase the ultimate tensile strength. There are fiber {001} < 110 > , Copper {112} < 111 > , Brass {011} < 211 > , S {123} < 634 > , Goss {011} < 100 > , Cube {001} < 100 > , and R {124} < 211 > texture components in the cold-rolled deformed 2324 aluminum alloy. Compared to cold-rolled deformed alloy, the fiber texture component disappears in the pre-stretched deformed alloy. The intensity of Brass and S texture components are helpful to obtaining higher strength of the alloy. The maximum ultimate tensile strength and yield strength are achieved in the alloy with the pre-stretching deformation of 1.4%, enhancing 42.7 MPa and 147.8 MPa compared to the cold-rolled deformed alloy, respectively. However, the elongation is decreased to 13.3% in the alloy with the pre-stretching deformation of 1.4%.
科研通智能强力驱动
Strongly Powered by AbleSci AI