Microscopic indentation: 1
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Microscopic Indentation
Visualization of hardness/deformation in small areas
We have enabled the in-situ observation of changes in indentation shapes and surrounding surfaces during indentation hardness tests. This will contribute to material development and the clarification of causes of accidents through the high-throughput collection of accurate data enabled by the combination of high temporal resolution of information from video recording and hardness tests.
Research
The hardness test, a method to clarify the strength of materials from the deformation caused by local loading, is widely used based on its high simplicity and reproducibility. To obtain highly accurate stress response information while taking advantage of the simplicity of this method, we have developed in-situ hardness tests (micro-indentation) method.
To observe the surface of the specimen both inside and around the indentation through a transparent indenter during the indentation test, it is necessary to optimize the optical conditions. However, by introducing a liquid with a refractive index close to that of the transparent indenter around the indenter, we have enabled a wide range of surface observations.Seiji Miura Professor
