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首页> 外文期刊>Journal of Materials Engineering and Performance >Effects of Changing Hot Rolling Direction on Microstructure, Texture and Mechanical Properties of Cu-2.7Be Sheets
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Effects of Changing Hot Rolling Direction on Microstructure, Texture and Mechanical Properties of Cu-2.7Be Sheets

机译：热轧方向对Cu-2.7BE床单微观结构，质地和力学性能的影响

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摘要

A hot rolling scheme (cross-rolling and unidirectional rolling) was adopted to process Cu-2.7Be sheets used as multiplier dynodes in photomultiplier. The effects of changing rolling direction on microstructure, texture and mechanical properties were studied by a combination of XRD, EBSD and TEM. It was found that higher copper-type texture and lower brass texture intensity were obtained in the ultimately cross-rolling (CR) sheet compared with the unidirectional rolling (UR) sheet.The EBSD results indicated that the grain orientation from mainly for UR sample turns to random for CR sample. Great enhancements in YS and UTS after unidirectional rolling were attributed to the massive and polygonal gamma precipitates. The CR sample exhibited lower anisotropy, because of the increase of S and gamma precipitates with spherical and tiny shape.
机译：采用热轧方案（交叉轧制和单向轧制）来处理用作光电倍增器中用作乘数Dynodes的Cu-2.7be薄片。 通过XRD，EBSD和TEM的组合研究了改变滚动方向对微观结构，质地和机械性能的影响。 结果发现，与单向轧制（UR）板相比，在最终交叉轧制（CR）片中获得了较高的铜型纹理和较低的黄铜纹理强度。EBSD结果表明晶粒取向主要用于US样品转弯 随机对Cr样本。 在单向滚动之后YS和UTS的良好增强归因于巨大和多边形γ沉淀物。 CR样品表现出较低的各向异性，因为S和γ沉淀出具有球形和微小的形状的S和γ沉淀。

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