Ultrastrong behaviors of a non-equiatomic Ti-Zr-Ni-Cu-Be high entropy metallic glass with ultrahigh glass forming ability

doi:10.1016/j.jnoncrysol.2021.121323

CORC > 金属研究所 > 中国科学院金属研究所

	Ultrastrong behaviors of a non-equiatomic Ti-Zr-Ni-Cu-Be high entropy metallic glass with ultrahigh glass forming ability
	Wang, Yuanyuan 1,2,3; Zhu, Zhengwang 1,2,3; Wang, Aimin 1,2,3; Zhang, Haifeng 1,2,3
刊名	JOURNAL OF NON-CRYSTALLINE SOLIDS
	2022-02-01
卷号	577 页码:6
关键词	High-entropy metallic glass Thermodynamics Kinetics Fragility Glass-forming ability
ISSN号	0022-3093
DOI	10.1016/j.jnoncrysol.2021.121323
通讯作者	Zhu, Zhengwang(zwzhu@imr.ac.cn)
英文摘要	We studied the thermodynamics and kinetics of a non-equiatomic Ti32.8Zr30.2Ni5.3Cu9Be22.7 high entropy metallic glass (HEMG, Delta S-config. similar to 1.44R) with a critical size for glass formation over 50 mm. The characteristic transition temperature, enthalpy of transition and specific heat capacity along with the relaxation time at different heating rate were determined using differential scanning calorimeter (DSC) measurements. It reveals that the present HEMG supercooled liquid shows the lowest thermodynamic driving force against the nucleation and growth of crystalline phases with comparing to other typical MG formers. Meanwhile, it exhibits the ultrastrong behavior near glass transition in terms of the Angell's fragility concept. The alloy has a fragility index of D* = 45.2, higher than all the typical MG formers reported so far. Both thermodynamic and kinetic factors are responsible for the ultrahigh glass-forming ability of the HEMG alloys.
资助项目	National Natural Science Foundation of China[52074257] ; National Natural Science Foundation of China[51790484] ; Chinese Academy of Sciences[ZDBS-LY-JSC023] ; Liao Ning Revitalization Talents Program[XLYC1802078] ; Liao Ning Revitalization Talents Program[XLYC1807062] ; Qingdao city[19-9-2-1-wz] ; Science and Technology on Transient Impact Laboratory[6142606192208]
WOS研究方向	Materials Science
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000754674900003
资助机构	National Natural Science Foundation of China ; Chinese Academy of Sciences ; Liao Ning Revitalization Talents Program ; Qingdao city ; Science and Technology on Transient Impact Laboratory
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/173354]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhu, Zhengwang
作者单位	1.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China 2.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 3.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
推荐引用方式 GB/T 7714	Wang, Yuanyuan,Zhu, Zhengwang,Wang, Aimin,et al. Ultrastrong behaviors of a non-equiatomic Ti-Zr-Ni-Cu-Be high entropy metallic glass with ultrahigh glass forming ability[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2022,577:6.
APA	Wang, Yuanyuan,Zhu, Zhengwang,Wang, Aimin,&Zhang, Haifeng.(2022).Ultrastrong behaviors of a non-equiatomic Ti-Zr-Ni-Cu-Be high entropy metallic glass with ultrahigh glass forming ability.JOURNAL OF NON-CRYSTALLINE SOLIDS,577,6.
MLA	Wang, Yuanyuan,et al."Ultrastrong behaviors of a non-equiatomic Ti-Zr-Ni-Cu-Be high entropy metallic glass with ultrahigh glass forming ability".JOURNAL OF NON-CRYSTALLINE SOLIDS 577(2022):6.