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Small Angle X-ray Scattering Study in Equal-channel Angular Pressed 7055 Al Alloys

机译：等通道角挤压7055铝合金的小角X射线散射研究

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A study was conducted on 7055 Al alloys processed by Equal-channel Angular Pressing (ECAP). The quantitative information about precipitate size, distribution and volume fraction in ECAPed samples was investigated by small-angle X-ray scattering (SAXS) and transmission electron microscopy (TEM). It is found that with the number of ECAP increasing, the quantitative information about volume fraction (f_v), precipitate size (R), specific inner surface of particle-matrix (Sp), and integrated intensity (Q_0) all increased, indicating that ECAP enhanced the nucleation and growth of precipitates. The microhardness of samples after two passes of ECAP is higher than that of T6 treated samples even after 96 h at 120°C. The formation of fine grains, higher volume fraction of precipitates, together with strain hardening induced by severe deformation are the main factors leading to a high microhardness in ECAPed samples.

机译：对通过等通道角挤压（ECAP）处理的7055铝合金进行了研究。通过小角度X射线散射（SAXS）和透射电子显微镜（TEM）研究了ECAPed样品中有关沉淀物大小，分布和体积分数的定量信息。发现随着ECAP数量的增加，有关体积分数（f_v），沉淀物尺寸（R），颗粒矩阵比内表面（Sp）和积分强度（Q_0）的定量信息均增加，表明ECAP增强沉淀物的形核和生长。即使在120°C下经过96小时，ECAP两次通过后，样品的显微硬度仍高于T6处理过的样品。细小晶粒的形成，较高的析出物体积分数以及严重变形引起的应变硬化是导致ECAPed样品具有较高显微硬度的主要因素。

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来源
《2006 BIMW》|2007年|P.839843|共2页
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作者
L.J. Zheng; G.Q. Li; H.X. Li; C.Q. Chen; B.Z. Dong;
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中图分类工程材料一般性问题;
关键词
7055 Al alloy; equal-channel angular pressing; small angle X-ray scattering; microstructure; microhardness;

机译：7055铝合金;等径角挤压;小角度X射线散射;显微组织;显微硬度;

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1. Transmission Electron Microscopy Study of Strain-Induced Low- and High-Angle Boundary Development in Equal-Channel Angular-Pressed Commercially Pure Aluminum [J] . M. Cabibbo, W. Blum, E. Evangelista, Metallurgical and Materials Transactions A . 2008,第1期

机译：等通道角压商业纯铝中应变诱发的低角度和高角度边界发展的透射电子显微镜研究
2. Mechanical spectroscopic study of equal-channel angular pressed Al-Ni eutectic alloy [J] . Watanabe Y., Zhang Z., Sato H., Diffusion and Defect Data. Solid State Data, Part B. Solid State Phenomena . 2012,第Null期

机译：等通道角压Al-Ni共晶合金的力学光谱研究
3. Grain refining performance for Al and Al-Si alloy casts by addition of equal-channel angular pressed Al-5 mass% Ti alloy [J] . Zuogui Zhang, Shigemistu Hosoda, Ick-Soo Kim, Materials Science and Engineering. A, Structural Materials: Properties, Microstructure and Processing . 2006,第1a2期

机译：通过添加等径角压Al-5质量％Ti合金，对Al和Al-Si合金铸件的晶粒细化性能
4. Small Angle X-ray Scattering Study in Equal-channel Angular Pressed 7055 Al Alloys [C] . L. J. Zheng, G. Q. Li, H. X. Li, Conference on Beijing International Materials Week . 2007

机译：等通道角上的小角度X射线散射研究按压7055 Al合金
5. Anomalous small-angle X-ray scattering studies of amorphous metal-germanium alloys. [D] . Rice, Marybeth. 1994

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Small Angle X-ray Scattering Study in Equal-channel Angular Pressed 7055 Al Alloys

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