STUDY ON EVALUATION METHOD OF DETERMINING YOUNG'S MODULUS USING ULTRAMICRO HARDNESS TESTER WITH A SMALL BALL INDENTER |
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| M. Fujitsuka, T. Ishibashi, S. Sukigara, H. Amano, M. Ohki |
- Abstract:
- The aim of this study is to determine Young’s modulus by means of measured indentation load, depth and elastic recovery displacement of an indenter during loading and unloading processes using a developed horizontal ultramicro hardness tester. In order to determine correctly Young’s modulus of materials in narrower and shallower area of nanometer or micrometer level, authors use very small ball indenters that are made by bearing ball of a diameter in 0.3 mm and 0.5 mm. Several metal specimens [carbon steel, stainless steel, high tension brass and aluminum alloy] are used in test. Young’s moduli of metal specimens calculated on the ball indentation theory show good agreements with that of uniaxial compression test. As a result, effectiveness of evaluation method of determining Young’s modulus with a small ball indenter is confirmed.
- Keywords:
- Horizontal Ultramicro Hardness Tester, Small Ball Indenter, Young’s Modulus
- Download:
- IMEKO-TC5-2002-028.pdf
- DOI:
- -
- Event details
- IMEKO TC:
- TC5
- Event name:
- Joint International Conference on Force, Mass, Torque, Hardness and Civil Engineering Metrology in the age of globalization
- Title:
- 8th HARDMEKO Conference on Hardness Measurement (together with 18th TC3 Conference on Force, Mass and Torque and 1st TC20 Conference on Civil Engineering Metrology)
- Place:
- Celle, GERMANY
- Time:
- 24 September 2002 - 26 September 2002