Indentation Size Effect (ISE) of Vickers Hardness in Steels: Correlation with H/E

Abstract:

The indentation size effect (ISE) in Vickers test using steel as a typical model material group with selected heat treatments (annealed or tempered) has been investigated and analysed. Systematically hardness test were performed within a commonly used micro-load range. The ISE data was analysed by fitting data following the Meyer power law and the proportional specimen resistance (PSR) models and the link between ISE and the hardness-to-modulus ratio (H/E) was discussed. The results show that the ISE data correlated well with the Meyers power law (P= A.dⁿ) and the PSR (P/d=a₁ +a₂d) models. The ISE power law index n exhibited a reasonable agreement with the hardness-elastic modulus ratio (H/E), which potentially could be used the relative contributions of plastic and elastic deformation contact area under indentation load and as a measurable input for inverse material parameter prediction.

• Periodical: Applied Mechanics and Materials (Volume 391)
• Pages: 23-28
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.391.23
• Online since: September 2013
• Authors: I. Nyoman Budiarsa
• Keywords: H/E, Indentation, Indentation Size Effect, Vickers Hardness

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