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Effect of Thickness Reduction on Microstructure and Properties of Rolled C71500 Cupronickel Alloy Tube

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Abstract

The electron backscatter electron diffraction (EBSD) technique was applied to study the microstructure evolution and properties of the annealed cold rolling C71500 cupronickel alloy tube. The fixed reduction ratio of C71500 alloy tube was 23.71%. After rolling with different thickness reduction, the change process of grain, the evolution of texture, the characteristic distribution of grain boundary and the mechanical properties of the alloy tube were discussed systematically. The texture of cold rolling tube was obviously different from the drawing and sheet textures, and only the textures of RZ{111<110> type and R-cube{001}<110> type could be observed after the two roller cold rolling process. After a certain amount of deformation, obvious accumulated orientation differences could be seen in the textures, which could create favourable conditions for the recrystallization nucleation. In the rolling process, the nonuniformity deformation of tube was caused by the inconsistency of stress state. With the increase reduction of tube wall, the tensile strength of the alloy increased from 405.13 to 574.65 MPa, the yield strength increased from 310.35 to 338.76 MPa, and the micro-Vickers hardness increased from 137.40 to 186.01.

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Acknowledgment

This study was financially supported by Ministry of Industry and Information Technology of the People's Republic of China (TC170A2KN-8) and the National Natural Science Foundation of China (No. 51801149). The authors would like to take this opportunity to express their sincere appreciation to the funds.

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Authors and Affiliations

  1. Institute of Engineering Technology, University of Science and Technology, Beijing, Beijing, 100083, China

    Xin Gao

  2. General Research Institute of Nonferrous Metals, Beijing, 100088, China

    Xin Gao

  3. Collaborative Innovation Center of Steel Technology, University of Science and Technology, Beijing, Beijing, 100083, China

    Hui-bin Wu

  4. School of Materials Science and Engineering, Xi’an Jiaotong University, Xi’an, 710049, China

    Ming Liu

  5. State Key Lab of Rolling and Automation, Northeastern University, Shenyang, 110819, China

    Yuan-xiang Zhang

  6. School of Materials Science and Engineering, Harbin Institute of Technology, Harbin, 150001, China

    Feng Gao

  7. Wuxi Longda Metal Material Co., Ltd, 214105, Jiangsu, China

    Xiang-dong Zhou

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  1. Xin Gao
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  2. Hui-bin Wu
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  3. Ming Liu
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  4. Yuan-xiang Zhang
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  5. Feng Gao
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Correspondence to Hui-bin Wu or Ming Liu.

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Gao, X., Wu, Hb., Liu, M. et al. Effect of Thickness Reduction on Microstructure and Properties of Rolled C71500 Cupronickel Alloy Tube. J. of Materi Eng and Perform 30, 3273–3283 (2021). https://doi.org/10.1007/s11665-021-05667-7

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  • DOI: https://doi.org/10.1007/s11665-021-05667-7

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