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Achieving high strength and toughness by engineering 3D artificial nacre-like structures inTi6Al4V-Ti metallic composite

文献类型：期刊论文

作者Liu, Xiaochun2; Liu, Zheng1; Liu, Yujing2; Zafar, Zainab2; Lu, Yanjin2; Wu, Xiang2; Jiang, Yue3; Xu, Zhiguang3; Guo, Zhenghua1; Li, Shujun4
刊名COMPOSITES PART B-ENGINEERING
出版日期2022-02-01
卷号230页码:12
ISSN号1359-8368
DOI10.1016/j.compositesb.2021.109552
通讯作者Liu, Zheng(zliu@nchu.edu.cn) ; Liu, Yujing(yjliu@csust.edu.au) ; Jiang, Yue(yjiang@zjxu.edu.cn)
英文摘要Bio-inspired mimicking natural structures generally duplicate the three dimensional "hard brick-and-soft mortar" structure that may overcome the intrinsic brittleness of the brick, resulting in an improved mechanical performance. Here for the first time, we proposed an anti-bioinspired strategy of designing metallic composite with soft bricks (pure Ti) confined by hard mortars (Ti6Al4V alloy). The three-dimensional minority of hard mortar (with a volume fraction of similar to 14%) is fabricated by using selective laser melting (SLM), while the bricks are introduced by filling the pure titanium powders followed by the hot isostatic pressing. The resulting nacre-like structured composite reveals a distinct periodic distribution of "soft-brick" and "hard-mortar" domains by a well-bonded interface with a well bonded interface between them. This unique composite structure exhibits a combination of high strength and high fracture toughness that both exceed the respective value calculated using the rule of mixtures (ROM). Three dimensional heterogenous plastic deformations between the two domains induce the mechanical incompatibility, which has been confirmed by the presence of higher density of geometrically necessary dislocations (GNDs) in front of the interface. The large amount of GNDs was believed primarily responsible for the extraordinary strengthening and toughening beyond the ROM. This novel strategy of designing artificial three dimensional "soft brick-and-hard mortar" structure could be further applied to other metals and alloys, shedding lights on the development of innovative heterogeneous materials relevant to industry.
资助项目National Natural Science Foundation of China[52001030] ; National Natural Science Foundation of China[51803200] ; National Natural Science Foundation of China[52105356] ; National Natural Science Foundation of China[52003104] ; Natural Science Foundation of Hunan Province Youth Fund[2021JJ20011] ; Natural Science Foundation of Hunan Province[2021JJ40590]
WOS研究方向Engineering ; Materials Science
语种英语
出版者ELSEVIER SCI LTD
WOS记录号WOS:000735255200002
资助机构National Natural Science Foundation of China ; Natural Science Foundation of Hunan Province Youth Fund ; Natural Science Foundation of Hunan Province
源URL[http://ir.imr.ac.cn/handle/321006/173757]  
专题金属研究所_中国科学院金属研究所
通讯作者Liu, Zheng; Liu, Yujing; Jiang, Yue
作者单位1.Nanchang Hangkong Univ, Sch Aeronaut Mfg Engn, Nanchang 330063, Jiangxi, Peoples R China
2.Changsha Univ Sci & Technol, Coll Mat Sci & Engn, Inst Met, 960 Wanjiali RD S, Changsha 410004, Hunan, Peoples R China
3.Jiaxing Univ, China Australia Inst Adv Mat & Mfg, Jiaxing 314001, Peoples R China
4.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, 72 Wenhua Rd, Shenyang 110016, Peoples R China
推荐引用方式
GB/T 7714		 Liu, Xiaochun,Liu, Zheng,Liu, Yujing,et al. Achieving high strength and toughness by engineering 3D artificial nacre-like structures inTi6Al4V-Ti metallic composite[J]. COMPOSITES PART B-ENGINEERING,2022,230:12.
APA Liu, Xiaochun.,Liu, Zheng.,Liu, Yujing.,Zafar, Zainab.,Lu, Yanjin.,...&Li, Shujun.(2022).Achieving high strength and toughness by engineering 3D artificial nacre-like structures inTi6Al4V-Ti metallic composite.COMPOSITES PART B-ENGINEERING,230,12.
MLA Liu, Xiaochun,et al."Achieving high strength and toughness by engineering 3D artificial nacre-like structures inTi6Al4V-Ti metallic composite".COMPOSITES PART B-ENGINEERING 230(2022):12.

入库方式： OAI收割

来源：金属研究所

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