Abstract
In the determination of mechanical properties by ultra-microindentation, various errors can appear. This paper analyzes various sources of errors in estimation of elastic modulus and hardness. These errors arise from uncertainties of the indenter geometry and properties, as well as measuring instrument limitations and errors, such as the minimum detectable load, compliance, and noise of the system. Other sources of errors are thermal drift, shape of the impression, and scatter of properties of the tested material. Characteristic features and the magnitude of individual kinds of errors are discussed, together with formulas and recommended methods for their reduction.
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Menčík, J., Swain, M.V. Errors associated with depth-sensing microindentation tests. Journal of Materials Research 10, 1491–1501 (1995). https://doi.org/10.1557/JMR.1995.1491
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DOI: https://doi.org/10.1557/JMR.1995.1491