Microstructure and hot deformation behavior of Cu-Ti-Zr(-Mg) alloys

被引：1
作者：
Han, Zhiyu [1 ]
Zhou, Meng [1 ,2 ,3 ]
Jing, Ke [1 ]
Chu, Chunhe [1 ]
Zhang, Yi [1 ,2 ,3 ]
Tian, Baohong [1 ]
Li, Zheng'ao [1 ]
Qin, Ziyi [1 ]
Zou, Jin [4 ]
Li, Xu [5 ]
Guo, Huiwen [6 ]
机构：
[1] Henan Univ Sci & Technol, Sch Mat Sci & Engn, Luoyang 471023, Peoples R China
[2] Prov & Ministerial Coconstruct Collaborat Innovat, Luoyang 471023, Henan, Peoples R China
[3] Henan Prov Key Lab Nonferrous Mat Sci & Proc Techn, Luoyang 471023, Peoples R China
[4] Jiangxi Acad Sci, Jiangxi Key Lab Adv Copper & Tungsten Mat, Nanchang 330096, Peoples R China
[5] Natl Inst Metrol, Ctr Adv Measurement Sci, Beijing 100029, Peoples R China
[6] Chinalco Luoyang Copper Proc Co Ltd, Luoyang 471000, Peoples R China
来源：
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T | 2024年 / 33卷
基金：
中国国家自然科学基金;
关键词：
Hot deformation; Cu-Ti alloy; Constitutive equations; EBSD; ELECTRICAL-CONDUCTIVITY; MECHANICAL-PROPERTIES; PRECIPITATION;
D O I：
10.1016/j.jmrt.2024.10.180
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In this study, the thermal deformation behavior of Cu-Ti-Zr(-Mg) alloys were investigated by Gleeble-1500D. The two alloys were deformed at 700-900 degrees C with 0.003-10 s(-1) strain rate. The intrinsic equations of the two alloys were constructed and calculated thermal activation energies, which indicates that it is improved from 325.67 kJ/mol to 344.03 kJ/mol after Mg addition. The result showed that the hot working area of Cu-Ti-Zr alloy is greatly extended after Mg addition, and rheological instability area is reduced. The morphology of the alloys was observed to analyze thermal behavior. It revealed that Mg elements inhibited the occurrence of dynamic recrystallization and shifted the texture types in the alloys by characterization of EBSD. TEM results showed that the phases during hot deformation in Cu-Ti-Zr-Mg are Cu4Ti and Cu(10)Zr7, which are in a semicoherent relationship with the Cu matrix.
引用
收藏
页码：5490 / 5503
页数：14
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