Designing new work-hardenable ductile Ti-based multilayered bulk metallic glass composites with ex-situ and in-situ hybrid strategy

doi:10.1016/j.jmst.2019.12.037

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	Designing new work-hardenable ductile Ti-based multilayered bulk metallic glass composites with ex-situ and in-situ hybrid strategy
	Lin, Shifeng 1,3; Zhu, Zhengwang 1; Ge, Shaofan 1; Zhang, Long 1; Liu, Dingming 1,3; Zhuang, Yanxin 2,3; Fu, Huameng 1; Li, Hong 1; Wang, Aimin 1; Zhang, Haifeng 1
刊名	JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
	2020-08-01
卷号	50 页码:128-138
关键词	Hybrid Strategy ML-BMGCs Tensile property Deformation Mechanism
ISSN号	1005-0302
DOI	10.1016/j.jmst.2019.12.037
通讯作者	Zhu, Zhengwang(zwzhu@imr.ac.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn)
英文摘要	To overcome the trade-off between the devisable microstructure and the excellent tensile ductility of bulk metallic glass composites (BMGCs), a novel ex situ and in situ hybrid strategy is successfully proposed to design a series of the work-hardenable ductile Ti-based multilayered BMGCs (ML-BMGCs). The as-prepared ML-BMGCs, consisting of a-phases, p-phases and amorphous phases, exhibit a controllable multilayered structure of the Ti layers and the amorphous layers with alternative distribution. The size and volume fraction of the crystalline phases are tuned by Nb microalloying. It is found that the ML-BMGCs possess a suitable size and volume fraction of the crystalline phases when Nb microalloying content are 5% (at.) or 8% (at.), and they obtain an optimum combination of the specific strength of 243 MPa g kg(-1) or 216 MPa g kg(-1), and tensile plasticity of 4.33%+0.1% or 5.10%+0.1%. The deformation mechanism of the as-prepared ML-BMGCs during tension is also revealed. The ex situ Ti layers and in situ dendrites together effectively serve as absorbers to suppress the propagation of shear bands and multiply shear bands. And the deformation of ex situ alpha-Ti phases by dislocation slip and the transformation from in situ metastable beta-Ti phase to orthorhombic alpha-Ti during tension impart significant work-hardening capability to the ML-BMGCs. The present study provides a guidance of developing novel high-performance BMGCs with a controllable microstructure. (C) 2020 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology.
资助项目	National Nature Science Foundation of China[51790484] ; National Nature Science Foundation of China[51531005] ; National Key Research and Development Program[2018YFB0703402] ; Liao Ning Revitalization program[XLYC1802078] ; Liao Ning Revitalization program[XLYC1807062] ; Shenyang Amorphous Metal Manufacturing Co., Ltd.
WOS研究方向	Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	JOURNAL MATER SCI TECHNOL
WOS记录号	WOS:000537588800013
资助机构	National Nature Science Foundation of China ; National Key Research and Development Program ; Liao Ning Revitalization program ; Shenyang Amorphous Metal Manufacturing Co., Ltd.
内容类型	期刊论文
源URL	[http://ir.imr.ac.cn/handle/321006/139126]
专题	金属研究所_中国科学院金属研究所
通讯作者	Zhu, Zhengwang; Zhang, Haifeng
作者单位	1.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 2.Northeastern Univ, Key Lab Electromagnet Proc Mat, Minist Educ, Shenyang 110819, Peoples R China 3.Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
推荐引用方式 GB/T 7714	Lin, Shifeng,Zhu, Zhengwang,Ge, Shaofan,et al. Designing new work-hardenable ductile Ti-based multilayered bulk metallic glass composites with ex-situ and in-situ hybrid strategy[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2020,50:128-138.
APA	Lin, Shifeng.,Zhu, Zhengwang.,Ge, Shaofan.,Zhang, Long.,Liu, Dingming.,...&Zhang, Haifeng.(2020).Designing new work-hardenable ductile Ti-based multilayered bulk metallic glass composites with ex-situ and in-situ hybrid strategy.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,50,128-138.
MLA	Lin, Shifeng,et al."Designing new work-hardenable ductile Ti-based multilayered bulk metallic glass composites with ex-situ and in-situ hybrid strategy".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 50(2020):128-138.