| Title | Characterization of Compositionally Complex Hydrides in a Metastable Refractory High-Entropy Alloy |
| Author | |
| Corresponding Author | Liebscher，Christian H.; Lu，Wenjun |
| Publication Years | 2022
|
| DOI | |
| Source Title | |
| ISSN | 1006-7191
|
| EISSN | 2194-1289
|
| Abstract | Here, we study the hydride formation in a metastable Ti–33Zr–22Hf–11Ta (at.%) refractory high entropy alloy (RHEA). Deviating to non-equiatomic compositions of RHEAs promotes the formation of transformation-induced plasticity where the body-centered cubic phase transforms to hexagonal close-packed (HCP) phase. It is found that the phase transformation capability assists the hydride formation due to the low solubility of hydrogen within the HCP phase. In this study, hydrogen is charged via electrochemical polishing and the corresponding phase transformation is activated in the metastable RHEAs. The newly formed HCP phase interacts with hydrogen to form a face-centered cubic hydride verified by electron energy loss spectroscopy. This work provides a primary exploration of the formation of compositionally complex metal hydrides in the metastable RHEAs, which are potential candidates for future hydrogen storage material design. |
| Keywords | |
| URL | [Source Record] |
| Indexed By | |
| Language | English
|
| SUSTech Authorship | First
; Corresponding
|
| Funding Project | open research fund of Songshan Lake Materials Laboratory[2021SLABFK05]
; Shenzhen Science and Technology Program[JCYJ20210324104404012]
|
| WOS Research Area | Metallurgy & Metallurgical Engineering
|
| WOS Subject | Metallurgy & Metallurgical Engineering
|
| WOS Accession No | WOS:000882361700001
|
| Publisher | |
| EI Accession Number | 20224613106931
|
| EI Keywords | Dissociation
; Electron energy levels
; Electron energy loss spectroscopy
; Electron scattering
; Energy dissipation
; Entropy
; High resolution transmission electron microscopy
; High-entropy alloys
; Hydrides
; Hydrogen storage
; Polishing
; Scanning electron microscopy
|
| ESI Classification Code | Gas Fuels:522
; Energy Losses (industrial and residential):525.4
; Metallurgy and Metallography:531
; Chromium and Alloys:543.1
; Iron Alloys:545.2
; Machining Operations:604.2
; Thermodynamics:641.1
; Optical Devices and Systems:741.3
; Physical Chemistry:801.4
; Chemical Reactions:802.2
; Inorganic Compounds:804.2
|
| Scopus EID | 2-s2.0-85141730750
|
| Data Source | Scopus
|
| Citation statistics |
Cited Times [WOS]:0
|
| Document Type | Journal Article |
| Identifier | http://kc.sustech.edu.cn/handle/2SGJ60CL/411871 |
| Department | Department of Mechanical and Energy Engineering |
| Affiliation | 1.Department of Mechanical and Energy Engineering,Southern University of Science and Technology,Shenzhen,518055,China 2.Max-Planck-Institut Für Eisenforschung,Düsseldorf,Max-Planck-Straße 1,40237,Germany |
| First Author Affilication | Department of Mechanical and Energy Engineering |
| Corresponding Author Affilication | Department of Mechanical and Energy Engineering |
| First Author's First Affilication | Department of Mechanical and Energy Engineering |
| Recommended Citation GB/T 7714 |
Liu，Jikui,Hou，Junhua,An，Fengchao,et al. Characterization of Compositionally Complex Hydrides in a Metastable Refractory High-Entropy Alloy[J]. Acta Metallurgica Sinica-English Letters,2022.
|
| APA |
Liu，Jikui,Hou，Junhua,An，Fengchao,Qian，Bingnan,Liebscher，Christian H.,&Lu，Wenjun.(2022).Characterization of Compositionally Complex Hydrides in a Metastable Refractory High-Entropy Alloy.Acta Metallurgica Sinica-English Letters.
|
| MLA |
Liu，Jikui,et al."Characterization of Compositionally Complex Hydrides in a Metastable Refractory High-Entropy Alloy".Acta Metallurgica Sinica-English Letters (2022).
|
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