Influence of surface-roughness on indentation size effect
- Authors
- Kim, Ju Young; Kang, Seung Kyun; Lee, Jung Jun; Jang, Jae il; Lee, Yun Hee; Kwon, Dongil
- Issue Date
- Jun-2007
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- hardness; indentation size effect; nanoindentation; surface-roughness
- Citation
- ACTA MATERIALIA, v.55, no.10, pp.3555 - 3562
- Indexed
- SCIE
SCOPUS
- Journal Title
- ACTA MATERIALIA
- Volume
- 55
- Number
- 10
- Start Page
- 3555
- End Page
- 3562
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/172295
- DOI
- 10.1016/j.actamat.2007.02.006
- ISSN
- 1359-6454
- Abstract
- During nanoindentation of a material with a naturally rough-surface, a flattening of the rough-surface is additionally accomplished compared to nanoindentation on a flat surface. By separating analytically the work expended to flatten the rough-surface and to deform the flattened surface, we develop here a new rough-surface indentation size effect (ISE) model. This new model is applied to nanoindentation results for three Ni samples of different surface-roughness and the applicability of the model is discussed in terms of a critical contact depth for the surface-roughness effect on ISE.
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