Irradiation-Hardening Model of TiZrHfNbMo0.1 Refractory High-Entropy Alloys

被引：2
作者：
Fan, Yujun [1 ]
Wang, Xuejiao [2 ]
Li, Yangyang [3 ]
Lan, Aidong [1 ]
Qiao, Junwei [1 ]
机构：
[1] Taiyuan Univ Technol, Coll Mat Sci & Engn, Taiyuan 030024, Peoples R China
[2] Taiyuan Univ Technol, Key Lab Interface Sci & Engn Adv Mat, Minist Educ, Taiyuan 030024, Peoples R China
[3] Huaxin Gas Grp Co Ltd, Taiyuan 030000, Peoples R China
来源：
ENTROPY | 2024年 / 26卷 / 04期
关键词：
high-entropy alloys; mechanical properties; ion irradiation; indentation size effect; plastic zone; MECHANICAL-PROPERTIES; LATTICE DISTORTION; SIZE; NANOINDENTATION; INDENTATION; PLASTICITY; BEHAVIOR; HARDNESS; NUCLEATION; STABILITY;
D O I：
10.3390/e26040340
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
In order to find more excellent structural materials resistant to radiation damage, high-entropy alloys (HEAs) have been developed due to their characteristics of limited point defect diffusion such as lattice distortion and slow diffusion. Specially, refractory high-entropy alloys (RHEAs) that can adapt to a high-temperature environment are badly needed. In this study, TiZrHfNbMo0.1 RHEAs are selected for irradiation and nanoindentation experiments. We combined the mechanistic model for the depth-dependent hardness of ion-irradiated metals and the introduction of the scale factor f to modify the irradiation-hardening model in order to better describe the nanoindentation indentation process in the irradiated layer. Finally, it can be found that, with the increase in irradiation dose, a more serious lattice distortion caused by a higher defect density limits the expansion of the plastic zone.
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页数：14
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