Tip shape effect on hot nanoindentation hardness and modulus measurements

Monclús, M.A.; Lotfian, Saeid; Molina-Aldareguía, J.M.

doi:10.1007/s12541-014-0499-2

Cited by 21 publications

(2 citation statements)

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“…Prior to discussions of analysis, the effect of thousands of indents on tip wear and calibration was considered. It is advisable for tip area functions to be re-calibrated regularly, either through direct means via AFM measurement, or indirect means via indentation in reference material [48]. In common practice, this would often occur after several hundred indents had been performed at most, a time-scale which could span several months.…”

Section: Nanoindentation Mappingmentioning

confidence: 99%

Nanoindentation in multi-modal map combinations: a correlative approach to local mechanical property assessment

Magazzeni

Gardner

Howe

et al. 2021

Journal of Materials Research

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A method is presented for the registration and correlation of property maps of materials, including data from nanoindentation hardness, Electron Back-Scattered Diffraction (EBSD), and Electron Micro-Probe Analysis (EPMA). This highly spatially resolved method allows for the study of micron-scale microstructural features, and has the capability to rapidly extract correlations between multiple features of interest from datasets containing thousands of data points. Two case studies are presented in commercially pure (CP) titanium: in the first instance, the effect of crystal anisotropy on measured hardness and, in the second instance, the effect of an oxygen diffusion layer on hardness. The independently collected property maps are registered using affine geometric transformations and are interpolated to allow for direct correlation. The results show strong agreement with trends observed in the literature, as well as providing a large dataset to facilitate future statistical analysis of microstructure-dependent mechanisms. Graphical abstract

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Section: Nanoindentation Mappingmentioning

confidence: 99%

Nanoindentation in multi-modal map combinations: a correlative approach to local mechanical property assessment

Magazzeni

Gardner

Howe

et al. 2021

Journal of Materials Research

View full text Add to dashboard Cite

show abstract

“…As an alternative, cubic boron nitride (cBN) can be used, but its hardness decreases quickly with temperature, it might react with some elements at high temperatures to form more stable borides (15), and it is non-conductive, which limits its use in the electron microscope. Nevertheless, even if more stable indenter tip materials are developed, the harsh conditions encountered at the indentation contact will inevitably lead to quick blunting of the tip due to tip-sample reactions and/or deposition of sample material (18), limiting the lifetime of the expensive indenter tips to performing just a few indents. Therefore, future developments call for dramatically new approaches, where the high temperature nanoindentation indenters can be produced in mass, such as lithography techniques, and treated as affordable consumables that can be thrown away and exchanged automatically after performing just a few indents.…”

Section: High and Low Temperaturesmentioning

confidence: 99%