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A damage-tolerant Ti-rich multiphase metallic-glass composite with hierarchically heterogeneous architecture

文献类型：期刊论文

作者Lin, Shifeng1,3,4; Zhu, Zhengwang1,3,4; Liu, Zengqian4; Ge, Shaofan4; Liu, Dingming4; Li, Hong1,3,4; Li, Zhengkun1,3,4; Fu, Huameng3,4; Wang, Aimin3,4; Zhang, Zhefeng4
刊名COMPOSITES PART B-ENGINEERING
出版日期2023-08-15
卷号263页码:8
关键词Ti -Rich multiphase composite Heterogeneity Hierarchical structure Mechanical properties Toughening mechanisms
ISSN号1359-8368
DOI10.1016/j.compositesb.2023.110818
通讯作者Zhu, Zhengwang(zwzhu@imr.ac.cn) ; Liu, Zengqian(zengqianliu@imr.ac.cn) ; Ritchie, Robert O.(roritchie@lbl.gov)
英文摘要Lightweight materials with good combinations of properties, such as high strength, ductility and damage tolerance, are highly desirable in engineering applications; nevertheless, it remains a challenge to "defeat" the generally exclusive relationships between different properties for structural materials. One viable means is to construct complicated architectures in materials. Here, we employ a lightweight Ti-based metallic glass (MG) and pure Ti as constituents and assemble them into a hierarchically-structured multiphase composite with tailored heterogeneity. The Ti-rich multiphase composite exhibits a relatively low density of 4.95 g & BULL; cm-3 owing to its high Ti content and a high strength of -1408 MPa derived primarily from the MG phase. The hierarchical architecture with tailored heterogeneity promotes the formation of abundant shear bands and microcracks in MG, yet inhibits their extension to avoid catastrophic fracture, thereby endowing the Ti-rich multiphase composite with a remarkable tensile ductility of -7.1% which is nearly two times that of the MG composite having similar phase constitution but a uniform structure. Moreover, this architecture causes crack-tip blunting by promoting plastic deformation, together with crack bifurcation and microcracking ahead of the crack tip, which bestows a high (notched) fracture toughness of -109 MPa & BULL; m1/2 which is around three times that of its counterpart. This study is intended to give insight for the architectural design of new materials by offering a viable means for their architectural construction to achieve good combinations of properties.
资助项目National Natural Science Foundation of China[51871216] ; National Natural Science Foundation of China[2020YFA0710404] ; National Key R amp; D Program of China[GJTD-2020-09] ; KC Wong Education Foundation[AFSOR-FA9550-15- 1-0009] ; Youth Innovation Promotion Association CAS ; US Air Force Office of Scientific Research, under the MURI grant[52074257] ; Chinese Academy of Sciences ; [52173269]
WOS研究方向Engineering ; Materials Science
语种英语
WOS记录号WOS:001055598600001
出版者ELSEVIER SCI LTD
资助机构National Natural Science Foundation of China ; National Key R amp; D Program of China ; KC Wong Education Foundation ; Youth Innovation Promotion Association CAS ; US Air Force Office of Scientific Research, under the MURI grant ; Chinese Academy of Sciences
源URL[http://ir.imr.ac.cn/handle/321006/179023]  
专题金属研究所_中国科学院金属研究所
通讯作者Zhu, Zhengwang; Liu, Zengqian; Ritchie, Robert O.
作者单位1.Northeastern Univ, Sch Met, Shenyang 110819, Peoples R China
2.Univ Calif Berkeley, Dept Mat Sci & Engn, Berkeley, CA 94720 USA
3.Chinese Acad Sci, CAS Key Lab Nucl Mat & Safety Assessment, Inst Met Res, Shenyang 110016, Peoples R China
4.Chinese Acad Sci, Shi Changxu Innovat Ctr Adv Mat, Inst Met Res, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Lin, Shifeng,Zhu, Zhengwang,Liu, Zengqian,et al. A damage-tolerant Ti-rich multiphase metallic-glass composite with hierarchically heterogeneous architecture[J]. COMPOSITES PART B-ENGINEERING,2023,263:8.
APA Lin, Shifeng.,Zhu, Zhengwang.,Liu, Zengqian.,Ge, Shaofan.,Liu, Dingming.,...&Ritchie, Robert O..(2023).A damage-tolerant Ti-rich multiphase metallic-glass composite with hierarchically heterogeneous architecture.COMPOSITES PART B-ENGINEERING,263,8.
MLA Lin, Shifeng,et al."A damage-tolerant Ti-rich multiphase metallic-glass composite with hierarchically heterogeneous architecture".COMPOSITES PART B-ENGINEERING 263(2023):8.

入库方式： OAI收割

来源：金属研究所

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