DEVELOPMENT OF NANOINDENTATION TESTER WITH A RAMAN SPECTROSCOPY INTERFACE FOR MATERIAL CHARACTERIZATION |
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| Masayuki Fujitsuka, Makoto Yamaguchi, Shigeru Ueno, Ichiro Miura, Shigeo Katayama |
- Abstract:
- Instrumented indentation test is a simple and effective method for evaluating the mechanical properties such as elasticity/stiffness, hardness and adhesion. During indentation test, materials are subjected to highly localized stresses. It is fundamental interest to explore its mechanical properties under conditions of extreme contact pressure. Raman micro-spectroscopy is a powerful and rapid technique to investigate the pressure-induced phase transformations and the residual stress in the indented region. This technique has been successfully used to study pressure-induced phase transitions of during indentations.
On the other hand, the localized stress during indentation not only causes phase transformation, but also elastic and plastic deformation. The observation of shape of surface or internal material, for example the piling-up or sinking-in behaviour that appears around the indent, plastic zone boundary, the distribution of a lateral crack, and so on, is also important to understand the phenomena during indentation. This understanding also plays an important role in the accurate determination of material properties using nanoindentation test.
In this paper, authors developed the nanoindentation tester with a Raman spectroscopy interface for material characterization. Not only general mechanical properties but also crystalline and residual stress is obtained by this system. The observation data using this system revealed that the stress field around the residual impression. - Keywords:
- Raman spectroscopy, residual stress, surface observation
- Download:
- IMEKO-TC5-2010-017.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC5
- Event name:
- HARDMEKO 2010
- Title:
- 11th HARDMEKO Conference: HARDMEKO 2010 (together with 21st TC3 Conference on Measurement of Force, Mass and Torque and 2nd TC22 Meeting on Vibration Measurement)
- Place:
- Pattaya, THAILAND
- Time:
- 21 November 2010 - 25 November 2010