| Fracture toughness of a rejuvenated beta-Ti reinforced bulk metallic glass matrix composite | |
| Rajpoot, Devashish1,2; Narayan, R. Lakshmi3; Zhang, Long4; Kumar, Punit2; Zhang, Haifeng4; Tandaiya, Parag1; Ramamurty, Upadrasta2,5 | |
| Corresponding Author | Narayan, R. Lakshmi(rlnarayan@mse.iitd.ac.in) ; Zhang, Long(zhanglong@imr.ac.cn) |
| 2022-04-20 | |
| Source Publication | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
 |
| ISSN | 1005-0302 |
| Volume | 106Pages:225-235 |
| Abstract | A beta-Ti dendrite reinforced Zr-based bulk metallic glass composite (BMGC) was found to be brittle when cast in a large size. The reasons for the embrittlement and the effectiveness of the cryothermal cycling (CTC) treatment in restoring the mode I fracture toughness are examined. Plasticity in all the CTC treated BMGC is estimated from the distribution and occurrence of pop-ins in nanoindentation tests and by measuring the magnitude of enthalpy of relaxation (Delta H-rel) via differential scanning calorimetry (DSC). This is further validated by examining the strain-to-failure (epsilon(f)) in compression tests. Mode I fracture behaviour of the as-cast embrittled BMGC and the CTC treated BMGC, which exhibits maximum plasticity, is examined. Results show that both BMGCs are equally brittle and exhibit 5 times lower notch toughness (K-QJ) than their tougher counterpart. Post-facto imaging of the side surfaces reveals the absence of notch-tip plasticity in both BMGCs. The lack of notch tip plasticity of CTC treated BMGC, despite exhibiting signatures of plasticity in nanoindentation and higher Delta H(rel )is rationalized by reassessing the origin of pop-ins in nanoindentation tests and describing the variations in chemical and topological short range ordering during CTC, respectively. Implications of these results in terms of improving the fracture toughness of structurally relaxed BMGCs via CTC are discussed. (C) 2022 Published by Elsevier Ltd on behalf of The editorial office of Journal of Materials Science & Technology. |
| Keyword | Bulk metallic glass composites Fracture Rejuvenation Shear bands Microsegragation |
| Funding Organization | Science and Engineering Research Board, DST, GoI ; IITB-NTU joint PhD Degree Program ; A STAR via the Structural Metals and Alloys Programme ; National Natural Science Foundation of China ; National Key Research and Development Program ; Youth Innovation Promotion Association CAS |
| DOI | 10.1016/j.jmst.2021.09.001 |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Science and Engineering Research Board, DST, GoI[SRG/2020/000095] ; IITB-NTU joint PhD Degree Program ; A STAR via the Structural Metals and Alloys Programme[A18B1b0061] ; National Natural Science Foundation of China[52171164] ; National Natural Science Foundation of China[51790484] ; National Key Research and Development Program[2018YFB0703402] ; Youth Innovation Promotion Association CAS[2021188] |
| WOS Research Area | Materials Science ; Metallurgy & Metallurgical Engineering |
| WOS Subject | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
| WOS ID | WOS:000780421100002 |
| Publisher | JOURNAL MATER SCI TECHNOL |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/172744 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | Narayan, R. Lakshmi; Zhang, Long |
| Affiliation | 1.Indian Inst Technol, Dept Mech Engn, Mumbai 400076, Maharashtra, India 2.Nanyang Technol Univ, Dept Mech & Aerosp Engn, Singapore 637331, Singapore 3.Indian Inst Technol Delhi, Dept Mat Sci & Engn, New Delhi 110016, India 4.Chinese Acad Sci, Inst Met Res, Shi Changxu Innovat Ctr Adv Mat, Shenyang 110016, Peoples R China 5.ASTAR, Inst Mat Res & Engn, Singapore 138634, Singapore |
| Recommended Citation GB/T 7714 | Rajpoot, Devashish,Narayan, R. Lakshmi,Zhang, Long,et al. Fracture toughness of a rejuvenated beta-Ti reinforced bulk metallic glass matrix composite[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2022,106:225-235. |
| APA | Rajpoot, Devashish.,Narayan, R. Lakshmi.,Zhang, Long.,Kumar, Punit.,Zhang, Haifeng.,...&Ramamurty, Upadrasta.(2022).Fracture toughness of a rejuvenated beta-Ti reinforced bulk metallic glass matrix composite.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,106,225-235. |
| MLA | Rajpoot, Devashish,et al."Fracture toughness of a rejuvenated beta-Ti reinforced bulk metallic glass matrix composite".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 106(2022):225-235. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment