Ion-irradiation-induced hardening in alloys of V-4Cr-4Ti and V-5Cr-5Ti | |
Fan JQ(范嘉琪); Zhang CH(张崇宏); Ma TD(马通达); Yang YT(杨义涛); Yan TX(颜廷星); Ding ZN(丁兆楠); Song Y(宋银) | |
刊名 | Nuclear Techniques |
2017 | |
卷号 | 40页码:030203-1-030101-8 |
ISSN号 | 0253-3219 |
其他题名 | 两类钒基合金的辐照硬化研究 |
英文摘要 | Background: Vanadium alloy (V-Cr-Ti) is an important fusion reactor candidate material due to its low activation characteristics, desirable high-temperature strength and good resistance to radiation damage. However, studies at lower temperature have shown a substantially reduced radiation resistance, manifested in a loss of ductility and enhanced hardening. Purpose: This work aims to investigate the irradiation hardening behavior of vanadium alloys under He-ion implantation and displacement damage, and provide an experimental evidence for optimizing the radiation resistance of vanadium alloys. Methods: In this study, irradiation of V-4Cr-4Ti alloy and V-5Cr-5Ti alloy samples were carried out with He-ions and swift-heavy-ions. A thick layer with a uniform damage distribution in samples was produced by varying energy of He ions, or by using an energy degrade wheel for swift-heavy-ion irradiation. The nanoindentation technique was used to measure the irradiation hardening. Cross-sectional transmission electron microscopy (TEM) sample fabricated from the irradiated samples were investigated with TEM. Results: The results show that the hardening saturation occurs when the dose of He-ion implantation is more than 4 200 (Atomic parts per million, APPM) /0.2 (Displacement per atom, DPA). The irradiation hardening by He-ions is far larger than that by the swift-heavy-ions at the same displacement damage level. Conclusion: The phenomenon of the enhanced hardening by He-ions can be attributed to the accelerated formation of defect clusters due to the combination of He-atoms and vacancies. |
CSCD记录号 | CSCD:5947963 |
内容类型 | 期刊论文 |
源URL | [http://119.78.100.186/handle/113462/24414] |
专题 | 近代物理研究所_能源材料研究组 近代物理研究所_材料研究中心 |
作者单位 | 中国科学院近代物理研究所 |
推荐引用方式 GB/T 7714 | Fan JQ,Zhang CH,Ma TD,et al. Ion-irradiation-induced hardening in alloys of V-4Cr-4Ti and V-5Cr-5Ti[J]. Nuclear Techniques,2017,40:030203-1-030101-8. |
APA | Fan JQ.,Zhang CH.,Ma TD.,Yang YT.,Yan TX.,...&Song Y.(2017).Ion-irradiation-induced hardening in alloys of V-4Cr-4Ti and V-5Cr-5Ti.Nuclear Techniques,40,030203-1-030101-8. |
MLA | Fan JQ,et al."Ion-irradiation-induced hardening in alloys of V-4Cr-4Ti and V-5Cr-5Ti".Nuclear Techniques 40(2017):030203-1-030101-8. |
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