南方科技大学知识苑(SUSTech KC): Characterization of Compositionally Complex Hydrides in a Metastable Refractory High-Entropy Alloy

题名	Characterization of Compositionally Complex Hydrides in a Metastable Refractory High-Entropy Alloy
作者	Liu，Jikui1 ; Hou，Junhua1 ; An，Fengchao1 ; Qian，Bingnan1 ; Liebscher，Christian H.2; Lu，Wenjun1
通讯作者	Liebscher，Christian H.; Lu，Wenjun
发表日期	2022
DOI	10.1007/s40195-022-01469-5
发表期刊	Acta Metallurgica Sinica-English Letters 影响因子和分区
ISSN	1006-7191
EISSN	2194-1289
卷号	36 期号:7页码:1173-1178
摘要	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.
关键词	Compositionally complex hydrides Electrochemical polishing Phase transformation Refractory high entropy alloy Scanning transmission electron microscopy (STEM)/electron energy loss spectroscopy (EELS)
相关链接	[Scopus记录]
收录类别	SCI ; EI
语种	英语
学校署名	第一 ; 通讯
资助项目	open research fund of Songshan Lake Materials Laboratory[2021SLABFK05] ; Shenzhen Science and Technology Program[JCYJ20210324104404012]
WOS研究方向	Metallurgy & Metallurgical Engineering
WOS类目	Metallurgy & Metallurgical Engineering
WOS记录号	WOS:000882361700001
出版者	CHINESE ACAD SCIENCES, INST METAL RESEARCH
EI入藏号	20224613106931
EI主题词	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
EI分类号	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记录号	2-s2.0-85141730750
来源库	Scopus
引用统计	被引频次[WOS]：1
成果类型	期刊论文
条目标识符	http://sustech.caswiz.com/handle/2SGJ60CL/411871
专题	工学院_机械与能源工程系
作者单位	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
第一作者单位	机械与能源工程系
通讯作者单位	机械与能源工程系
第一作者的第一单位	机械与能源工程系
推荐引用方式 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,2022,36(7):1173-1178.
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,36(7),1173-1178.
MLA	Liu，Jikui,et al."Characterization of Compositionally Complex Hydrides in a Metastable Refractory High-Entropy Alloy".Acta Metallurgica Sinica-English Letters 36.7(2022):1173-1178.