Correlation of microstructure and tensile properties in in-situ high-entropy bulk metallic glass composites

doi:10.1016/j.jnoncrysol.2023.122456

IMR OpenIR

	Correlation of microstructure and tensile properties in in-situ high-entropy bulk metallic glass composites
	Liu, M. L.1,3; Li, W.3,4; Zeng, S.3; Song, Q. L.3,5; Li, Y. F.3; Fu, H. M.3,4; Li, H.2,3,4; Wang, A. M.3,4; Lin, X. P.1; Zhang, H. F.2,3,4; Zhu, Z. W.2,3,4
通讯作者	Zhu, Z. W.(zwzhu@imr.ac.cn)
	2023-09-15
发表期刊	JOURNAL OF NON-CRYSTALLINE SOLIDS
ISSN	0022-3093
卷号	616 页码:8
摘要	To investigate the 'structure-property' correlation in the high-entropy bulk metallic glass composites (HEBMGCs), a series of in-situ dendrites-reinforced Zr28Ti19Hf19Nb9.5Co5.5Be19 HE-BMGCs containing different microstructures are fabricated by varying the cooling rate (R). The underlying correlation between microstructure characteristics of dendrites and tensile properties of HE-BMGCs are elucidated by the postmortem microstructure observation and fracture analysis. The critical investigation shows the volume fraction (Vd), size (a) and arm diameter (d) of dendrite increase with decreasing R, whereas the interdendritic spacing (& ANGS;) decreases correspondingly. The larger d is more beneficial to enhance the back-stress-induced hardening effect of HE-BMGCs, while the strengths of all the HE-BMGCs are negative linear correlation with their Vd (56-70%). Besides, the finer a matches the size of 'plastic zone' associated with larger & ANGS;, which results in higher tensile ductility (-6.4%). Therefore, the combination of finer a and appropriate Vd at higher R is favorable for HE-BMGCs to obtain better ductility and higher strength. Our findings provide an important implication for the microstructural optimization of HE-BMGCs with desirable mechanical properties.
关键词	High-entropy bulk metallic glass Microstructure Dislocations Shear bands Back stress strengthening
资助者	National Natural Science Foundation of China ; Chinese Academy of Sciences ; Qingdao city
DOI	10.1016/j.jnoncrysol.2023.122456
收录类别	SCI
语种	英语
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] ; Qingdao city[19-9-2-1-wz]
WOS研究方向	Materials Science
WOS类目	Materials Science, Ceramics ; Materials Science, Multidisciplinary
WOS记录号	WOS:001027236400001
出版者	ELSEVIER
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/178472
专题	中国科学院金属研究所
通讯作者	Zhu, Z. W.
作者单位	1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China 2.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China 3.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 4.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China 5.Univ Sci & Technol Liaoning, Sch Mat & Met, Anshan 114051, Peoples R China
推荐引用方式 GB/T 7714	Liu, M. L.,Li, W.,Zeng, S.,et al. Correlation of microstructure and tensile properties in in-situ high-entropy bulk metallic glass composites[J]. JOURNAL OF NON-CRYSTALLINE SOLIDS,2023,616:8.
APA	Liu, M. L..,Li, W..,Zeng, S..,Song, Q. L..,Li, Y. F..,...&Zhu, Z. W..(2023).Correlation of microstructure and tensile properties in in-situ high-entropy bulk metallic glass composites.JOURNAL OF NON-CRYSTALLINE SOLIDS,616,8.
MLA	Liu, M. L.,et al."Correlation of microstructure and tensile properties in in-situ high-entropy bulk metallic glass composites".JOURNAL OF NON-CRYSTALLINE SOLIDS 616(2023):8.