Uncovering heterogeneity of local lattice distortion in TiZrHfNbTa refractory high entropy alloy by SR-XRD and EXAFS
文献类型：期刊论文
| 作者 | Tan YY(谭园园); Li T(李统); Chen, Yu; Chen, ZhongJun; Su MY(苏明耀); Zhang, Jing; Gong, Yu; Wu, Tao; Wang HY(汪海英) ; Dai LH(戴兰宏)
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| 刊名 | SCRIPTA MATERIALIA
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| 出版日期 | 2023-01-15 |
| 卷号 | 223页码:115079 |
| 关键词 | Local lattice distortion TiZrHfNbTa refractory high entropy alloy (RHEA) Heterogeneity EXAFS SR-XRD |
| ISSN号 | 1359-6462 |
| DOI | 10.1016/j.scriptamat.2022.115079 |
| 英文摘要 | Local lattice distortion is usually hypothesized to be severe in TiZrHfNbTa refractory high entropy alloy (RHEA). However, few works have made to quantitatively evaluate element specified distortion and its effect on mechanical behavior of this alloy. In this work, we herein provide a quantitative assessment of element specified local lattice distortion in both the as-prepared and tested TiZrHfNbTa RHEA using a combination of X-ray diffraction and extended X-ray absorption fine structure spectrum (EXAFS). The results show a more significant local lattice distortion (5.2 +/- 0.3%) around Zr-center than that (4.0 +/- 0.4%) around Nb-center in the as-prepared TiZrHfNbTa RHEA, and the distortion magnitude become more prominent after tensile test. Splitting features are observed in the Fourier transformed EXAFS spectra due to heterogeneous atom motions during deformation. The underlying mechanisms of this element-specified local distortion and its influence on solid solution hardening and ductility degradation are discussed as well. |
| 分类号 | 一类 |
| WOS研究方向 | Science & Technology - Other Topics ; Materials Science ; Metallurgy & Metallurgical Engineering |
| 语种 | 英语 |
| WOS记录号 | WOS:000932907100002 |
| 资助机构 | NSFC [12002341, 11790292, 11672316, 12172367] ; NSFC Basic Science Center Program for Multiscale Problems in Nonlinear Mechanics [11988102] ; Strategic Priority Research Program [XDB22040302, XDB22040303] ; Key Research Program of Frontier Sciences [QYZDJSSW-JSC011] ; Science Challenge Project [TZ2016001] ; Zhejiang Provincial Natural Science Foundation [LGG21E010005] |
| 其他责任者 | Dai, LH (corresponding author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China. ; Dai, LH (corresponding author), Univ Chinese Acad Sci, Sch Engn Sci, Beijing 100049, Peoples R China. ; Dai, LH (corresponding author), Beijing Inst Technol, State Key Lab Explos Sci & Technol, Beijing 100081, Peoples R China. |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/95121]  |
| 专题 | 力学研究所_非线性力学国家重点实验室 |
| 推荐引用方式 GB/T 7714 | Tan YY,Li T,Chen, Yu,et al. Uncovering heterogeneity of local lattice distortion in TiZrHfNbTa refractory high entropy alloy by SR-XRD and EXAFS[J]. SCRIPTA MATERIALIA,2023,223:115079. |
| APA | 谭园园.,李统.,Chen, Yu.,Chen, ZhongJun.,苏明耀.,...&戴兰宏.(2023).Uncovering heterogeneity of local lattice distortion in TiZrHfNbTa refractory high entropy alloy by SR-XRD and EXAFS.SCRIPTA MATERIALIA,223,115079. |
| MLA | 谭园园,et al."Uncovering heterogeneity of local lattice distortion in TiZrHfNbTa refractory high entropy alloy by SR-XRD and EXAFS".SCRIPTA MATERIALIA 223(2023):115079. |
入库方式： OAI收割
来源：力学研究所
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