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Dislocation slip induced tensile plasticity and improved work-hardening capability of high-entropy metallic glass composite
Liu, Minglei1,2; Li, Wei2,3; Lin, Shifeng1,2; Fu, Huameng2,3; Li, Hong2,3; Wang, Aimin2,3; Lin, Xiaoping1; Zhang, Haifeng2,3; Zhu, Zhengwang2,3
Corresponding AuthorZhu, Zhengwang(zwzhu@imr.ac.cn)
2022-02-01
Source PublicationINTERMETALLICS
ISSN0966-9795
Volume141Pages:8
AbstractThe high-entropy metallic glasses (HEMGs), combining the characteristics of high-entropy alloys (HEAs) and metallic glasses (MGs), have recently appeared and become the research focus, due to their good glass-forming ability and high strength. However, the application of HEMGs as structural material is restricted owing to the limited tensile plasticity and absence of dislocation-dominated deformation mechanism. To resolve this pressing issue, a stable beta-phase HEMG composite (beta-type HEMGC) Ti20Zr20Hf20Nb16Co5Be19 composed of the bcc refractory HEA (RHEA) dendrites and the HEMG matrix was fabricated. Ti20Zr20Hf20Nb16Co5Be19 not only exhibits good tensile ductility, but also has the improved work-hardening capability under room temperature tension. Essentially, the dislocation-dominated deformation mechanism plays a significant role in achieving the excellent combination of good tensile plasticity and improved work-hardening capability of the stable p-type HEMGC. The tensile ductility of Ti20Zr20Hf20Nb16Co5Be19 is attributed to the dislocation-slip mechanism induced by highstable HEA dendrites, and the dislocation pile-up phenomenon has a great influence on the improved workhardening capability of composite. The present results provide an indepth understanding of the deformation behavior of stable beta-type HEMGCs, and a reference for how to improve the strength-ductility combination of HEMG-matrix composites.
KeywordHigh-entropy metallic glass Composite Tensile properties High-entropy alloy Dislocation slip
Funding OrganizationNational Natural Science Foundation of China ; Chinese Academy of Sciences ; Liao Ning Revitalization Talents Program
DOI10.1016/j.intermet.2021.107407
Indexed BySCI
Language英语
Funding ProjectNational 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] ; [19-9-2-1-wz]
WOS Research AreaChemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectChemistry, Physical ; Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000720752800003
PublisherELSEVIER SCI LTD
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/167369
Collection中国科学院金属研究所
Corresponding AuthorZhu, Zhengwang
Affiliation1.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China
3.Chinese Acad Sci, Inst Met Res, CAS Key Lab Nucl Mat & Safety Assessment, Shenyang 110016, Peoples R China
Recommended Citation
GB/T 7714
Liu, Minglei,Li, Wei,Lin, Shifeng,et al. Dislocation slip induced tensile plasticity and improved work-hardening capability of high-entropy metallic glass composite[J]. INTERMETALLICS,2022,141:8.
APA Liu, Minglei.,Li, Wei.,Lin, Shifeng.,Fu, Huameng.,Li, Hong.,...&Zhu, Zhengwang.(2022).Dislocation slip induced tensile plasticity and improved work-hardening capability of high-entropy metallic glass composite.INTERMETALLICS,141,8.
MLA Liu, Minglei,et al."Dislocation slip induced tensile plasticity and improved work-hardening capability of high-entropy metallic glass composite".INTERMETALLICS 141(2022):8.
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