Further evidence for room temperature, indentation-induced nanocrystallization in a bulk metallic glass
- Authors
- Yoo, Byung-Gil; Choi, In-Chul; Kim, Yong-Jae; Suh, Jin-Yoo; Ramamurty, Upadrasta; Jang, Jae-il
- Issue Date
- May-2012
- Publisher
- ELSEVIER SCIENCE SA
- Keywords
- Bulk metallic glass; Nanoindentation; Nanocrsytallization
- Citation
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.545, pp.225 - 228
- Indexed
- SCIE
SCOPUS
- Journal Title
- MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
- Volume
- 545
- Start Page
- 225
- End Page
- 228
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/165742
- DOI
- 10.1016/j.msea.2012.03.026
- ISSN
- 0921-5093
- Abstract
- Room temperature nanoindentation experiments, employing two different pyramidal (Berkovich and cube-corner) indenters, were performed on a Zr-based bulk metallic glass (BMG) to critically examine the possibility of indentation-induced nanocrystallization in BMGs. Cross-sectional transmission electron microscopy images obtained from high angle annular dark field ( HAADF) and high resolution (HR) modes clearly indicate to the occurrence of nanocrystallization. Pronounced nanocrystallite formation in the case of sharper cube-corner indenter suggests that the structural transformation is favored by the high strains introduced during nanoindentation.
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