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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 AuthorNarayan, R. Lakshmi(rlnarayan@mse.iitd.ac.in) ; Zhang, Long(zhanglong@imr.ac.cn)
2022-04-20
Source PublicationJOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
ISSN1005-0302
Volume106Pages:225-235
AbstractA 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.
KeywordBulk metallic glass composites Fracture Rejuvenation Shear bands Microsegragation
Funding OrganizationScience 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
DOI10.1016/j.jmst.2021.09.001
Indexed BySCI
Language英语
Funding ProjectScience 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 AreaMaterials Science ; Metallurgy & Metallurgical Engineering
WOS SubjectMaterials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering
WOS IDWOS:000780421100002
PublisherJOURNAL MATER SCI TECHNOL
Citation statistics
Document Type期刊论文
Identifierhttp://ir.imr.ac.cn/handle/321006/172744
Collection中国科学院金属研究所
Corresponding AuthorNarayan, R. Lakshmi; Zhang, Long
Affiliation1.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.
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