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Journal of Materials Engineering and Performance

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26-03-2018

Effects of Changing Hot Rolling Direction on Microstructure, Texture and Mechanical Properties of Cu-2.7Be Sheets

Authors: Daibo Zhu, Chuming Liu, Haijun Yu, Tan Han

Published in: Journal of Materials Engineering and Performance | Issue 7/2018

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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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Title: Effects of Changing Hot Rolling Direction on Microstructure, Texture and Mechanical Properties of Cu-2.7Be Sheets
Authors: Daibo Zhu
Chuming Liu
Haijun Yu
Tan Han
Publication date: 26-03-2018
Publisher: Springer US
Published in: Journal of Materials Engineering and Performance / Issue 7/2018
Print ISSN: 1059-9495
Electronic ISSN: 1544-1024
DOI: https://doi.org/10.1007/s11665-018-3292-z

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