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首页> 外文期刊>Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics >Effect of surface nanocrystallization on the microstructural and corrosion characteristics of AZ91D magnesium alloy
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Effect of surface nanocrystallization on the microstructural and corrosion characteristics of AZ91D magnesium alloy

机译：表面纳米晶化对AZ91D镁合金组织和腐蚀性能的影响

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摘要

Surface distinct deformed layers with thicknesses up to 150 um, with grain size in the top most surface is in the nanometer scale, were produced on AZ91D magnesium alloy using surface mechanical attrition treatment (SMAT). Effects of different ball size on the properties of the SMATed samples were investigated. The microstructural, grain size, hardness and roughness features of the treated surfaces were characterized using optical microscopy (OM), scanning electron microscopy (SEM), X-ray diffraction (XRD), micro-indenter and digital roughness meter, respectively. Corrosion behavior of the samples was evaluated using potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques.
机译：使用表面机械磨耗处理（SMAT）在AZ91D镁合金上生产了厚度高达150 um的表面不同的变形层，最顶部表面的晶粒尺寸为纳米级。研究了不同球尺寸对SMATed样品性能的影响。分别使用光学显微镜（OM），扫描电子显微镜（SEM），X射线衍射（XRD），微型压头和数字粗糙度仪对经过处理的表面的微观结构，晶粒尺寸，硬度和粗糙度特征进行了表征。使用电位动力学极化和电化学阻抗谱（EIS）技术评估样品的腐蚀行为。

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