| Designing new work-hardenable ductile Ti-based multilayered bulk metallic glass composites with ex-situ and in-situ hybrid strategy | |
| Lin, Shifeng1,3; Zhu, Zhengwang1; Ge, Shaofan1; Zhang, Long1; Liu, Dingming1,3; Zhuang, Yanxin2,3; Fu, Huameng1; Li, Hong1; Wang, Aimin1; Zhang, Haifeng1 | |
| Corresponding Author | Zhu, Zhengwang(zwzhu@imr.ac.cn) ; Zhang, Haifeng(hfzhang@imr.ac.cn) |
| 2020-08-01 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 50Pages:128-138 |
| Abstract | 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. |
| Keyword | Hybrid Strategy ML-BMGCs Tensile property Deformation Mechanism |
| Funding Organization | National Nature Science Foundation of China ; National Key Research and Development Program ; Liao Ning Revitalization program ; Shenyang Amorphous Metal Manufacturing Co., Ltd. |
| DOI | 10.1016/j.jmst.2019.12.037 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | 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 Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000537588800013 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/139124 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Zhu, Zhengwang; Zhang, Haifeng |
| Affiliation | 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 |
| Recommended Citation 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. |
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