Mechanism of local hardening in metallic glass during He ion irradiation | |
Wang Y(王洋); Zhang K(张坤); Feng YH(冯义辉); Li YS(李彦升); Tang WQ(唐玮琪); Zhang YT(张亚婷); Wei BC(魏炳忱); Hu Z(胡铮) | |
发表期刊 | Materialia |
2020-05-08 | |
卷号 | 11页码:100691 |
ISSN | 2589-1529 |
摘要 | When exposed to He radiation, metallic glasses (MGs) often undergo a unique transformation and mechanical evolution, unlike their crystalline counterparts. However, the relationship between He bubble evolution and the mechanical response is largely unknown. Here, a localized hardness change along ion irradiation direction was discovered under the condition that He ion irradiation does not induced nanocrystallizaiton. The location of the localized hardening peak shifted to the right, and this was accompanied by nucleation and growth of the He bubbles as the fluence increased. Besides, coalescence and overlap of the He bubbles were observed in the central of the bubble layer at the highest fluence. The localized hardness change was quantified by a model based on the He bubbles size and density. The results of this study provide insights into the effect of He bubbles on mechanical evolution and pave the way for designing MGs suitable for the nuclear industry. |
关键词 | Metallic glassIon irradiationLocal hardeningHe bubbleNanoindentation |
DOI | 10.1016/j.mtla.2020.100691 |
URL | 查看原文 |
收录类别 | 其他 |
语种 | 英语 |
论文分区 | 其他 |
力学所作者排名 | 1 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://dspace.imech.ac.cn/handle/311007/81912 |
专题 | 微重力重点实验室 |
通讯作者 | Zhang K(张坤); Wei BC(魏炳忱) |
作者单位 | 1.CAS Key Laboratory of Microgravity (National Microgravity Laboratory), Institute of Mechanics, Chinese Academy of Sciences 2.Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences 3.State Key Laboratory of Nonlinear Mechanics, Institute of Mechanics, Chinese Academy of Sciences 4.School of Engineering Science, University of Chinese Academy of Sciences 5.Science and Technology on Vehicle Transmission Laboratory, China North Vehicle Research Institute |
推荐引用方式 GB/T 7714 | Wang Y,Zhang K,Feng YH,et al. Mechanism of local hardening in metallic glass during He ion irradiation[J]. Materialia,2020,11:100691. |
APA | Wang Y.,Zhang K.,Feng YH.,Li YS.,Tang WQ.,...&Hu Z.(2020).Mechanism of local hardening in metallic glass during He ion irradiation.Materialia,11,100691. |
MLA | Wang Y,et al."Mechanism of local hardening in metallic glass during He ion irradiation".Materialia 11(2020):100691. |
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