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首页> 外文期刊>Surface and Interface Analysis: SIA: An International Journal Devoted to the Development and Application of Techniques for the Analysis of Surfaces, Interfaces and Thin Films >Anodizing of AA6063 aluminium alloy profiles: Generation of dark appearance
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Anodizing of AA6063 aluminium alloy profiles: Generation of dark appearance

机译：AA6063铝合金型材的阳极氧化：产生深色外观

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摘要

The generation of dark appearance on an anodized AA6063-T6 aluminium alloy profile has been investigated. Plan and cross-sectional views of the anodic films of normal and dark samples revealed a distinct layer, of 1-2 μm thickness, decorated with characteristic features in the outer film regions of the dark sample, contrasting with typical porous anodic film of the normal sample. Additionally, it was revealed that the alloy substrate of the dark sample was over-aged and the characteristic features in the outer film regions of the dark sample are related to preferential anodizing of coarsened β′ (Mg2Si) precipitates. Further, it is suggested that the over-aged microstructure is not the sufficient condition for the occurrence of dark appearance, and the anodizing conditions in the early stages also play an important role in the generation of dark appearance.
机译：已经研究了阳极氧化AA6063-T6铝合金型材上深色外观的产生。普通和深色样品的阳极膜的平面图和横截面图显示了一层厚度为1-2μm的独特层，在深色样品的外膜区域中装饰有特征性特征，与普通的多孔阳极膜相反样品。另外，揭示了深色样品的合金基底过度老化，并且深色样品的外膜区域中的特征与粗化的β'（Mg 2 Si）析出物的优先阳极氧化有关。此外，建议过时的显微组织不是产生深色外观的充分条件，并且早期的阳极氧化条件在深色外观的产生中也起重要作用。

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