Hardness of Thin-Film Media: Scratch Experiments and Finite Element Simulations
作者： E. R. Kral , K. Komvopoulos , D. B. Bogy
DOI: 10.1115/1.2837078
关键词:
摘要: Experiments and finite element simulations are presented pertaining to the effective hardness mechanics of indentation sliding contact on elastic-plastic layered media. Hardness measurements obtained from scratch experiments for thin-film rigid disks with 30 nm carbon overcoats. Reproducible results residual depths greater than approximately 8 nm. A simple force balance model is used calculate medium. values surface layer calculated by fitting a relationship between hardness, geometry, thickness experimental data. The compared three-dimensional spherical indenter over half-space stiffer harder layer. verify applied data provide insight into observed behavior in context associated deformation characteristics
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