文献类型：期刊文献

英文题名：Evolution of the microstructure and mechanical properties of Cu strips manufactured by a novel single-step drawing and progressive rolling process

作者：Xu, Gaolei[1];Wang, Chengfeng[1];Shen, Longlong[1];Chen, Zubin[2];Guo, Qing[2];Chai, Yanfu[1];Xia, Dabiao[3];Wu, Fuzhong[1];Liu, Huawen[1];Wang, Qinghang[4]

机构：[1]Shaoxing Univ, Sch Mech & Elect Engn, Shaoxing 312000, Peoples R China;[2]Raytron Innovat Energy Zhejiang C LTD, Shaoxing 312000, Peoples R China;[3]Jihua Lab, Foshan 528000, Peoples R China;[4]Yangzhou Univ, Sch Mech Engn, Yangzhou 225127, Peoples R China

年份：2025

卷号：38

起止页码：3803

外文期刊名：JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T

收录：SCI-EXPANDED(收录号：WOS:001566207600001)、、WOS

基金：This research was funded by the National Natural Science Foundation of China (No. 52204407, No. 22208220, No. 52304408) , the Key Industrial Technology Research and Basic public welfare program projects in Shaoxing city (2023B41003, 2023A11004 and 2023A11005) , the Project Selection through Open Bidding in Zhuji city (2024J01) .

语种：英文

外文关键词：Cu strip; Cold rolled; Drawing; finite element simulation; Mechanical properties

外文摘要：This study develops a novel "single-step drawing and multi-stage rolling" composite process for manufacturing high-performance ultrathin copper (Cu) strips, systematically exploring microstructure evolution and mechanical property regulation mechanisms. Finite element modeling (FEM) conducted via ABAQUS revealed pronounced spatiotemporal heterogeneity in stress-strain field distributions, characterized by a marked escalation in longitudinal (x-axis) tensile stress during the secondary and tertiary rolling phases, whereas transverse (y-axis) compressive stresses exhibited progressive stabilization. Quantitative microstructural characterization evidenced a monotonic reduction in grain size from 22.88 mu m (as-received Cu wire) to 9.31 mu m (post-deformation), attributable to dynamic recrystallization mechanisms. Notably, post-annealing microstructural evolution analysis identified abnormal grain growth as the dominant factor governing the strength degradation in incremental differential speed rolling and recrystallization annealed (IDRRRA) specimens Comparative mechanical testing showed that the IDRRRA-sample exhibited lower tensile yield strength (TYS: 85.39 MPa) and ultimate tensile strength (UTS: 403.65 MPa) but superior elongation (58.1 %) compared to I-sample. Visco-plastic self-consistent (VPSC) simulations revealed that although both alloys exhibited {111}<110> slip-dominated deformation during tension, the {111}<112> twinning in the IDRRRA specimen was delayed during the later stages of tensile deformation compared to I-sample.