Microstructure and mechanical evolution of Cu-2.7Be sheets via annealing
The microstructure and mechanical properties of cold-rolled Cu-2.7Be sheets under various annealing processes and conditions were investigated in this research. The increased beryllium content in the Cu-2.7Be alloy facilitates the formation of brittle secondary phases. Consequently, the study highli...
| Main Authors: | , , , , , |
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| Other Authors: | |
| Format: | Journal Article |
| Language: | English |
| Published: |
2021
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| Subjects: | |
| Online Access: | https://hdl.handle.net/10356/145897 |
| _version_ | 1826117610442326016 |
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| author | Liu, Yang Wang, Qinwei Yao, Bingqing Zhu, Daibo Chen, Deshan Zhang, Peng |
| author2 | School of Materials Science and Engineering |
| author_facet | School of Materials Science and Engineering Liu, Yang Wang, Qinwei Yao, Bingqing Zhu, Daibo Chen, Deshan Zhang, Peng |
| author_sort | Liu, Yang |
| collection | NTU |
| description | The microstructure and mechanical properties of cold-rolled Cu-2.7Be sheets under various annealing processes and conditions were investigated in this research. The increased beryllium content in the Cu-2.7Be alloy facilitates the formation of brittle secondary phases. Consequently, the study highlights the functionality of annealed Cu-2.7Be alloys as more favorable dynodes than the traditionally used Cu-2.0Be alloys. The mechanism of recrystallization used for the transformation of Cu-2.7Be alloys was that of continuous static recrystallization (cSRX). Moreover, the relationship between the orientation of the β phases and that of the surrounding Cu-matrix was determined to be (111)α∥(110)β and (011)α∥(001)β. The β phase has a body-centered cubic (bcc) structure with a = b = c = 0.281 nm. The β phase undergoes a morphology transformation from primitive lath-shaped β particles to quadrangle-shaped β particles during the annealing process. Such transformations could potentially have an effect on the mechanical properties of Cu-2.7Be sheets. There was a noticeable decline in the yield strength of the Cu-2.7Be after annealing, and the samples annealed at 770 °C for 15 min achieved the elongation with deep and uniform dimples caused by suitable β particle sizes, appropriate grain sizes, and the maximum volume fraction of ∑3 boundaries. |
| first_indexed | 2024-10-01T04:30:26Z |
| format | Journal Article |
| id | ntu-10356/145897 |
| institution | Nanyang Technological University |
| language | English |
| last_indexed | 2024-10-01T04:30:26Z |
| publishDate | 2021 |
| record_format | dspace |
| spelling | ntu-10356/1458972023-07-14T15:47:52Z Microstructure and mechanical evolution of Cu-2.7Be sheets via annealing Liu, Yang Wang, Qinwei Yao, Bingqing Zhu, Daibo Chen, Deshan Zhang, Peng School of Materials Science and Engineering Engineering::Materials Cu-2.7Be Alloy Annealing The microstructure and mechanical properties of cold-rolled Cu-2.7Be sheets under various annealing processes and conditions were investigated in this research. The increased beryllium content in the Cu-2.7Be alloy facilitates the formation of brittle secondary phases. Consequently, the study highlights the functionality of annealed Cu-2.7Be alloys as more favorable dynodes than the traditionally used Cu-2.0Be alloys. The mechanism of recrystallization used for the transformation of Cu-2.7Be alloys was that of continuous static recrystallization (cSRX). Moreover, the relationship between the orientation of the β phases and that of the surrounding Cu-matrix was determined to be (111)α∥(110)β and (011)α∥(001)β. The β phase has a body-centered cubic (bcc) structure with a = b = c = 0.281 nm. The β phase undergoes a morphology transformation from primitive lath-shaped β particles to quadrangle-shaped β particles during the annealing process. Such transformations could potentially have an effect on the mechanical properties of Cu-2.7Be sheets. There was a noticeable decline in the yield strength of the Cu-2.7Be after annealing, and the samples annealed at 770 °C for 15 min achieved the elongation with deep and uniform dimples caused by suitable β particle sizes, appropriate grain sizes, and the maximum volume fraction of ∑3 boundaries. Published version 2021-01-14T01:24:06Z 2021-01-14T01:24:06Z 2020 Journal Article Liu, Y., Wang, Q., Yao, B., Zhu, D., Chen, D., & Zhang, P. (2020). Microstructure and mechanical evolution of Cu-2.7Be sheets via annealing. Metals, 10(2), 241-. doi:10.3390/met10020241 2075-4701 https://hdl.handle.net/10356/145897 10.3390/met10020241 2-s2.0-85079505768 2 10 en Metals © 2020 The Authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). application/pdf |
| spellingShingle | Engineering::Materials Cu-2.7Be Alloy Annealing Liu, Yang Wang, Qinwei Yao, Bingqing Zhu, Daibo Chen, Deshan Zhang, Peng Microstructure and mechanical evolution of Cu-2.7Be sheets via annealing |
| title | Microstructure and mechanical evolution of Cu-2.7Be sheets via annealing |
| title_full | Microstructure and mechanical evolution of Cu-2.7Be sheets via annealing |
| title_fullStr | Microstructure and mechanical evolution of Cu-2.7Be sheets via annealing |
| title_full_unstemmed | Microstructure and mechanical evolution of Cu-2.7Be sheets via annealing |
| title_short | Microstructure and mechanical evolution of Cu-2.7Be sheets via annealing |
| title_sort | microstructure and mechanical evolution of cu 2 7be sheets via annealing |
| topic | Engineering::Materials Cu-2.7Be Alloy Annealing |
| url | https://hdl.handle.net/10356/145897 |
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