Abstract
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 \(\left\langle {101} \right\rangle\) 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 γ precipitates. The CR sample exhibited lower anisotropy, because of the increase of S and γ precipitates with spherical and tiny shape.
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18 May 2018
Please note that an affiliation for all authors of this article was incorrectly given as “School of Materials Science and Technology, Central South University, Changsha, China”
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Acknowledgments
This work was financially supported by the International S & T Cooperation Program of China (ISTCP). We specially appreciate the help of Professor Daoyun Ding and Bei Tang.
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Zhu, D., Liu, C., Yu, H. et al. Effects of Changing Hot Rolling Direction on Microstructure, Texture and Mechanical Properties of Cu-2.7Be Sheets. J. of Materi Eng and Perform 27, 3532–3543 (2018). https://doi.org/10.1007/s11665-018-3292-z
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DOI: https://doi.org/10.1007/s11665-018-3292-z