通过轧制纯铝箔和阳极铝箔制备多层铝基复合材料（英文）

发布时间：2018-02-03 05:28

本文关键词： 铝箔阳极氧化多层复合材料 Al_O_颗粒强度断裂　出处：《Transactions of Nonferrous Metals Society of China》2017年09期 　论文类型：期刊论文

【摘要】：介绍了一种以商业纯铝箔为基体的多层复合材料的加工过程、组织结构和力学性能。采用热轧制交替排布的纯铝和阳极铝箔制备多层复合材料;此外,采用同样的工艺制备纯铝箔多层复合材料。在这两种情况下,均得到紧实致密的多层复合材料。为了研究复合材料的微观组织演变和力学性能,分别进行了光学和扫描电镜(SEM)、能谱(EDS)、X射线衍射(XRD)分析以及硬度、拉伸和三点弯曲试验。微观组织表征显示,阳极铝复合材料铝基体中平行分布着棒状Al_2O_3颗粒,而且铝箔界面间生成少量粗大颗粒。两种复合材料的硬度、强度、弹性模量和抗弯强度均高于纯铝材料的,而延展性明显降低。与纯铝箔多层复合材料相比,阳极铝箔多层复合材料具有较高的强度和弹性模量以及较低的延展性。材料的断裂失效方式与延展性的变化一致。
[Abstract]:The processing process, microstructure and mechanical properties of a multilayer composite with commercial pure aluminum foil as the matrix were introduced. The composite materials were prepared by hot rolling alternating arrangement of pure aluminum and anodic aluminum foil. In addition, pure aluminum foil multilayer composites were prepared by the same process. In both cases, compacted and dense multilayer composites were obtained. In order to study the microstructure evolution and mechanical properties of the composites. The hardness, tensile and three-point bending tests were carried out respectively by optical and scanning electron microscopy (SEM), EDS (EDSX) and X-ray diffraction (XRD). The microstructures were characterized. The rod-like Al_2O_3 particles are distributed in the aluminum matrix of the anodic aluminum composite, and a small amount of coarse particles are formed between the interfaces of the aluminum foil. The hardness and strength of the two kinds of composites are obtained. The elastic modulus and flexural strength of the composite are higher than those of pure aluminum, but the ductility is obviously decreased, compared with the pure aluminum foil multilayer composite. The anodic aluminum foil multilayer composite has high strength, elastic modulus and low ductility. The fracture failure mode of the material is consistent with the change of ductility.
【作者单位】： Department
【基金】：financially supported by the Ministry of Education,Science and Technological Development of the Republic of Serbia through the Project Nos.Ⅲ45012 and ON174004
【分类号】：TB33
【正文快照】： Due to their high corrosion resistance and thermal1 Introductionstability,aluminum and its alloys are popular materialchoices for structural applications in the aerospace andMetallic multilayer composites with differentautomotive industries[15-17].Over t

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