| 引用本文: | 唐嘉帅,高云霞,付星球,黄霞,王先平,方前锋.ARB法制备轻质高阻尼MnCu/Al复合材料及其性能研究[J].材料科学与工艺,2025,33(6):72-78.DOI:10.11951/j.issn.1005-0299.20240078. |
| TANG Jiashuai,GAO Yunxia,FU Xingqiu,HUANG Xia,WANG Xianping,FANG Qianfeng.Preparation and properties of lightweight and high-damping MnCu/Al composites by accumulative roll bonding[J].Materials Science and Technology,2025,33(6):72-78.DOI:10.11951/j.issn.1005-0299.20240078. |
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| ARB法制备轻质高阻尼MnCu/Al复合材料及其性能研究 |
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唐嘉帅1,高云霞1,2,付星球1,2,黄霞1,2,王先平3,方前锋3
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(1.华北电力大学 数理学院,北京 102206;2. 华北电力大学(保定) 河北省物理学与能源技术重点实验室,河北 保定 071000;3. 中国科学院 固体物理研究所 材料物理重点实验室,合肥 230031)
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| 摘要: |
| 高阻尼合金的阻尼性能对微振动的抑制效果显著,但高阻尼合金的高比重极大影响了其在航空航天微振动领域中的应用。为了降低高阻尼合金的高比重,且保持其原有的微振动高阻尼特性,本文采用累积叠轧焊法(ARB)成功制备了轻质高阻尼MnCu/Al复合材料,其比重仅为4.54 g/cm3。采用场发射扫描电镜、能谱仪、多功能X射线衍射仪、多功能内耗仪和万能试验机研究了MnCu/Al复合材料的微观组织形貌和结构演变,及其在不同轧制道次下的阻尼性能和力学性能。研究表明:经过10个ARB循环,获得了MnCu透镜状碎片均匀分布的MnCu/Al复合材料,且无新相生成；经过10道次轧制后的MnCu/Al复合材料具有较高的阻尼性能和良好的力学性能:在-50 ℃至50 ℃温区内的内耗峰值约为0.010,是同温区纯铝的5倍(约0.002)；轧制态MnCu/Al复合材料的最大抗拉强度为137 MPa,为纯铝(约52 MPa)的2.6倍；退火态MnCu/Al复合材料的屈服强度为55 MPa,相较于纯铝(约30 MPa)显著提升。MnCu/Al复合材料的阻尼性能和力学性能的提升主要归因于MnCu增强体的高阻尼性能、其在Al基体中的“碎片状”均匀分布以及二者间的紧密结合。本文的研究成果可为轻质高阻尼材料的制备提供一种新技术。 |
| 关键词: 累积叠轧焊法(ARB) Al基复合材料 锰铜合金 低比重 阻尼性能 |
| DOI：10.11951/j.issn.1005-0299.20240078 |
| 分类号:TG335.81 |
| 基金项目:国家自然科学基金资助项目(12275318). |
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| Preparation and properties of lightweight and high-damping MnCu/Al composites by accumulative roll bonding |
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TANG Jiashuai1,GAO Yunxia1,2,FU Xingqiu1,2,HUANG Xia1,2,WANG Xianping3,FANG Qianfeng3
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(1.North China Electric Power University, College of Mathematics and Physics, Beijing 102206, China; 2.Hebei Key Laboratory of Physics and Energy Technology, North China Electric Power University, Baoding 071000, China; 3.Key Laboratory of Materials Physics, Institute of Solid State Physics, Chinese Academy of Sciences, Hefei 230031, China)
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| Abstract: |
| The damping properties of high-damping alloys are effective in suppressing microvibrations, but their high specific weight severely limits their application in the aerospace microvibration control. In order to reduce the high specific gravity of high-damping alloys, and maintain their original microvibration high-damping characteristics, high-damping Mn-Cu/Al composites with a low density of 4.54 g/cm3 were successfully prepared by accumulative roll bonding (ARB) method. The surface morphology and microstructure evolution of the composite and damping properties and mechanical properties of Mn-Cu/Al composites after different ARB cycles were studied by field emission scanning electron microscope and energy dispersive X-ray spectroscopy and Multi-function X-ray diffractometer and multi-functional internal friction apparatus and universal testing machine. The experimental results showed that the MnCu/Al composite with uniform distribution of MnCu lens-like fragments was obtained after 10 ARB cycles, and no new phase formed. The MnCu/Al composites exhibit both high damping capacity and good mechanical properties after 10 ARB cycles: the internal friction peak in the -50 ℃ to 50 ℃ temperature range is approximately 0.010, about five times that of pure aluminum in the same range (≈0.002); the as-rolled MnCu/Al composite has a maximum tensile strength of 137 MPa, 2.6 times that of pure aluminum (≈52 MPa); and the yield strength of the annealed MnCu/Al composite is 55 MPa, a significant increase relative to pure aluminum (≈30 MPa). The enhancement of damping capacity and mechanical property of MnCu/Al composites are primarily attributed to the high damping capacity of MnCu reinforcement and the uniform distribution of MnCu lens-like fragments in Al matrix, as well as the strong bonding between the two phases. The research results in this paper can provide a new technology for the preparation of lightweight and high-damping materials. |
| Key words: accumulative roll bonding Al-based composites MnCu alloys low density damping capacity |
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