Evolution of grain characteristics and dynamic recrystallization behavior of Cu-15Ni-8Sn alloy under different extrusion ratios

被引:6
作者
Huang, Kuan [1 ]
Zhang, Yan-min [1 ,3 ,5 ]
Zhou, Yan-jun [1 ,3 ,5 ]
Yang, Ran [2 ]
Meng, Xiang-peng [4 ]
Chen, Ji-dong [4 ]
Zhang, Xue-bin [1 ,3 ,5 ]
Jiang, Kai-xuan [1 ]
Liu, Dong-dong [1 ]
机构
[1] Henan Univ Sci & Technol, Sch Mat Sci & Engn, Luoyang 471023, Peoples R China
[2] Henan Univ Sci & Technol, Sch Med Technol & Engn, Luoyang 471023, Peoples R China
[3] Henan Key Lab Adv Nonferrous Met, Luoyang 471023, Peoples R China
[4] Bowei Alloy Mat Co Ltd, Ningbo 315000, Peoples R China
[5] Prov & Ministerial Coconstruct Collaborat Innovat, Luoyang 471023, Peoples R China
来源
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 28卷
关键词
Cu-15Ni-8Sn alloy; Hot extrusion; Microstructure evolution; Dynamic recrystallization; Mechanical properties; NI-SN ALLOY; MICROSTRUCTURAL EVOLUTION; MECHANICAL-PROPERTIES; DEFORMATION;
D O I
10.1016/j.jmrt.2023.12.174
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
For atmospheric melting cast Cu-15Ni-8Sn alloy, hot extrusion tests were conducted on ingots of Cu-15Ni-8Sn alloy with varying extrusion ratios (5, 12 and 16) following homogenization and annealing. The investigation employed mechanical property tests, scanning electron microscopy and transmission electron microscopy to analyze the mechanical characteristics, dynamic recrystallization and twinning behaviors of the alloys subjected to different extrusion ratios. The findings revealed a reduction in the average grain size of the alloy as the extrusion ratio increased. The alloy undergoes dynamic recrystallization during hot extrusion, and the degree of recrystallization of the alloy escalated with higher extrusion ratios. The alloy underwent completely recrystallized at an extrusion ratio of 16, primarily driven by discontinuous dynamic recrystallization (DDRX). In addition, the alloy generated twins during the DRX process, and the twin boundaries provided favorable sites for the nucleation of DRX grains, which promoted the DRX of the alloy. Notably, at an extrusion ratio of 16, the alloy demonstrated impressive mechanical properties, with an ultimate tensile strength of 836 MPa and an elongation of 13.5 %. These results presented a substantial enhancement, showcasing a 54 % increase in the extruded ultimate tensile strength and a 350 % increase in the elongation compared to that of the alloy in the homogenized annealed state.
引用
收藏
页码:2887 / 2897
页数:11
相关论文
共 31 条
[1]   Spinodal copper alloy C72900-new high strength antifriction alloy system [J].
Cribb, W. R. ;
Grensing, F. C. .
CANADIAN METALLURGICAL QUARTERLY, 2011, 50 (03) :232-239
[2]  
GOTTSTEIN G, 1984, ACTA METALL MATER, V32, P1117, DOI 10.1016/0001-6160(84)90015-4
[3]   Comparison of discontinuous precipitation behavior of Cu-15Ni-8Sn alloy with and without Co addition [J].
Guo, Chengjun ;
Qi, Zhaoming ;
Xu, Huaben ;
Shi, Yufan ;
Xiao, Xiangpeng ;
An, Guihuan ;
Yang, Bin .
JOURNAL OF ALLOYS AND COMPOUNDS, 2023, 930
[4]   Inhibition of discontinuous precipitation and enhanced properties of Cu-15Ni-8Sn alloy with Fe addition [J].
Guo, Chengjun ;
Wan, Jia ;
Chen, Jinshui ;
Xiao, Xiangpeng ;
Huang, Hao ;
Liu, Jinping ;
Yang, Bin .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2020, 795
[5]   A Review of Cu-Ni-Sn Alloys: Processing, Microstructure, Properties, and Developing Trends [J].
Guo, Lang ;
Zuo, Pengcheng ;
Zhang, Zequn ;
Zhang, Qianwen ;
Zhao, Mengya ;
Hou, Xinyu ;
Wu, Junsheng ;
Zhang, Bowei .
MATERIALS, 2023, 16 (01)
[6]   Effect of V addition on microstructures and mechanical properties of Cu-15Ni-8Sn alloy [J].
Guo, Zhongkai ;
Jie, Jinchuan ;
Liu, Shichao ;
Zhang, Yubo ;
Qin, Bailiang ;
Wang, Tongmin ;
Li, Tingju .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 748 :85-94
[7]   Microstructure evolution mechanisms and a physically-based constitutive model for an Al-Zn-Mg-Cu-Zr aluminum alloy during hot deformation [J].
He, Daoguang ;
Xie, Han ;
Lin, Y. C. ;
Yan, Xin-Tao ;
Xu, Zhengbing ;
Xiao, Gang .
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T, 2023, 26 :4739-4754
[8]   Effect of extrusion on microstructure and properties of a submicron crystalline Cu-5 wt.%Cr alloy [J].
He, Wenxiong ;
Wang, Erde ;
Hu, Lianxi ;
Yu, Yang ;
Sun, Hongfei .
JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2008, 208 (1-3) :205-210
[9]   Microstructure and Properties of a Cu-Ni-Sn Alloy Treated by Two-Stage Thermomechanical Processing [J].
Jiang, Yexin ;
Li, Zhou ;
Xiao, Zhu ;
Xing, Yan ;
Zhang, Yang ;
Fang, Mei .
JOM, 2019, 71 (08) :2734-2741
[10]   Environmentally assisted degradation spinodal copper alloy C72900 [J].
Johnsen, Roy ;
Lange, Torstein ;
Stenerud, Gaute ;
Olsen, Jim Stian .
CORROSION SCIENCE, 2018, 142 :45-55