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김주영

Kim, Ju-Young
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Determining effective radius and frame compliance in spherical nanoindentation

Author(s)
Kang, Seung-KyunKim, Young-CheonLee, Yun-HeeKim, Ju-YoungKwon, Dongil
Issued Date
2012-03
DOI
10.1016/j.msea.2012.01.013
URI
https://scholarworks.unist.ac.kr/handle/201301/3200
Fulltext
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=84862786196
Citation
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, v.538, pp.58 - 62
Abstract
We estimate effective radii of a spherical nanoindenter at various indentation depths using Hertz elastic contact theory for the fully elastic contact region and AFM profiling residual indentation marks for the elastoplastic contact region. Using frame compliance measured as a function of indentation depth and the concept of infinitesimal deformation of a spherical nanoindenter, we introduce a profile of indentation-depth-dependent frame compliance that successfully explains the variation in frame compliance over the entire contact region. After using this indentation-depth-dependent frame compliance, we evaluated more consistent indenter radii from Hertz elastic contact theory at shallow indentation depths (<90 nm).
Publisher
ELSEVIER SCIENCE SA
ISSN
0921-5093
Keyword (Author)
NanoindentationSpherical indenterFrame complianceTip bluntnessElastic modulus
Keyword
STRESS-STRAIN CURVESEFFECTIVE INDENTERYOUNGS MODULUSINDENTATIONPOINTPILE

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