Estimation of the shear transformation zone size fin a bulk metallic glass through statistical a analysis of the first pop-in stresses during spherical nanoindentation
- Title
- Estimation of the shear transformation zone size fin a bulk metallic glass through statistical a analysis of the first pop-in stresses during spherical nanoindentation
- Author
- 장재일
- Keywords
- Bulk amorphous materials; Nanoindentation; Yield phenomena; Shear transformation zone
- Issue Date
- 2012-06
- Publisher
- Elsevier Science LTD
- Citation
- Scripta Materialia, 2012, 66(11), P.923-926
- Abstract
- The size of the shear transformation zone (STZ) that initiates the elastic to plastic transition in a Zr-based bulk metallic glass was estimated by conducting a statistical analysis of the first pop-in event during spherical nanoindentation. A series of experiments led us to a successful description of the distribution of shear strength for the transition and its dependence on the loading rate. From the activation volume determined by statistical analysis the STZ size was estimated based on a cooperative shearing model. (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
- URI
- https://www.sciencedirect.com/science/article/pii/S1359646212001340?via%3Dihubhttp://hdl.handle.net/20.500.11754/67870
- ISSN
- 1359-6462
- DOI
- 10.1016/j.scriptamat.2012.02.032
- Appears in Collections:
- COLLEGE OF ENGINEERING[S](공과대학) > MATERIALS SCIENCE AND ENGINEERING(신소재공학부) > Articles
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