本文關(guān)鍵詞： 鋁箔 陽(yáng)極氧化 多層復(fù)合材料 Al_O_顆粒 強(qiáng)度 斷裂　出處：《Transactions of Nonferrous Metals Society of China》2017年09期 　論文類(lèi)型：期刊論文

【摘要】：介紹了一種以商業(yè)純鋁箔為基體的多層復(fù)合材料的加工過(guò)程、組織結(jié)構(gòu)和力學(xué)性能。采用熱軋制交替排布的純鋁和陽(yáng)極鋁箔制備多層復(fù)合材料;此外,采用同樣的工藝制備純鋁箔多層復(fù)合材料。在這兩種情況下,均得到緊實(shí)致密的多層復(fù)合材料。為了研究復(fù)合材料的微觀(guān)組織演變和力學(xué)性能,分別進(jìn)行了光學(xué)和掃描電鏡(SEM)、能譜(EDS)、X射線(xiàn)衍射(XRD)分析以及硬度、拉伸和三點(diǎn)彎曲試驗(yàn)。微觀(guān)組織表征顯示,陽(yáng)極鋁復(fù)合材料鋁基體中平行分布著棒狀A(yù)l_2O_3顆粒,而且鋁箔界面間生成少量粗大顆粒。兩種復(fù)合材料的硬度、強(qiáng)度、彈性模量和抗彎強(qiáng)度均高于純鋁材料的,而延展性明顯降低。與純鋁箔多層復(fù)合材料相比,陽(yáng)極鋁箔多層復(fù)合材料具有較高的強(qiáng)度和彈性模量以及較低的延展性。材料的斷裂失效方式與延展性的變化一致。
[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.
【作者單位】： 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
【分類(lèi)號(hào)】：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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