The Effect of Irradiation Dose and Temperature on Irradiation Hardening and Microstructure Study of Hot-Forged V-4Cr-4Ti Under Self-Ion Irradiation

被引：0
|
作者：
Wei, Yaxia [1 ]
Zhao, Yinshu [1 ]
Xu, Min [1 ]
Zheng, Pengfei [1 ]
Guo, Liping [2 ]
Luo, Hongtai [2 ]
Zhang, Pengbo [3 ]
Zhang, Guihang [1 ]
Zhao, Hua [1 ]
机构：
[1] Southwestern Inst Phys, Chengdu 610041, Peoples R China
[2] Wuhan Univ, Sch Phys & Technol, Hubei Nucl Solid Phys Key Lab, Key Lab Artificial Micro & Nanostruct,Minist Educ, Wuhan 430072, Peoples R China
[3] Dalian Maritime Univ, Coll Sci, Dalian 116026, Peoples R China
来源：
METALS | 2025年 / 15卷 / 02期
基金：
中国国家自然科学基金;
关键词：
vanadium alloy; irradiation hardening; dislocation loops; self-ion irradiation; VANADIUM ALLOYS; FABRICATION; TECHNOLOGY;
D O I：
10.3390/met15020104
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
After being self-ion implanted at 400 degrees C and 550 degrees C, the microstructure and irradiation hardness of kilogram-scale V-4Cr-4Ti alloys were studied using a transmission electron microscope (TEM) and nano-indentation test technology. Irradiation was performed using self-ions (V2+) at 2.5 MeV with design influences of 1.15 x 1015 ions cm-2, 4.59 x 1015 ions cm-2, and 9.17 x 1015 ions cm-2, so that the peak damages of V-4Cr-4Ti alloys are 1, 4, and 8 dpa, respectively. Compared with the 400 degrees C samples, the 550 degrees C samples exhibited a higher-density number of dislocation loops and increased hardness and reached saturation at lower irradiation doses. The irradiation temperature was mainly responsible for these differences, and the potential mechanism for its effect on the irradiation behavior was discussed.
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