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Development and its Performance Evaluation of a Depth-Sensing Micro-Indentation Testing Device

깊이 측정이 가능한 마이크로 압입 시험기 개발 및 성능평가

  • Chung, Chin-Sung (Department of Automotive Engineering, Seoul National University of Technology) ;
  • Kim, Ho-Kyung (Department of Automotive Engineering, Seoul National University of Technology)
  • 정진성 (서울산업대학교 자동차공학과) ;
  • 김호경 (서울산업대학교 자동차공학과)
  • Published : 2009.06.30

Abstract

We developed a compact micro indentation testing device (designated SNUT) which is capable to measure Young's modulus of a sample using depth and applied load data during indentation. Performance of this device was evaluated using pure Ti, pure Ni, and die steel (SKD11). As a result of analysing the indentation test data, the frame compliance $C_f$ was found to influence mainly the modulus by 80% among several factors affecting accuracy of Young's modulus. Project area, which was determined by indirect indentation method, was modified using direct SEM observation. Finally, Young's modulus error was reduced to 5% after taking into consideration the frame compliance and modified projected area from 80% error without any these two correction factors. The performance of SNUT and MTS instruments was compared using same specimen (pure Ti).

Keywords

References

  1. Oliver, W.C and Pharr, G.M., J. Master. Res., Vol. 7, pp. 1564-1583. 1992 https://doi.org/10.1557/JMR.1992.1564
  2. Lee, Y. H., Jeong, J. H., Park, J. S., and Kwon, D., 'Analysis of Non-equi biaxial Surface Residual Stress through the Modeling of Shape Shifting in Instrumented Indentation Curve', J. Kor. Inst. Met & Mater., Vol. 41, No. 11, pp. 737-742, 2003
  3. Huber, N. and Tsakmakis, C., 'Determination of Constitutive Properties from Spherical Indentation Data using Neural Networks Part I: the Case of Pure Kinematic Hardening in Plasticity Laws', J. Mech. Phys. Solids, Vol. 47, pp. 1569-1588, 1999 https://doi.org/10.1016/S0022-5096(98)00109-4
  4. Jayaraman, S., Halm, G. T., Oliver, W.C., Rubin, C.A., and Bastias, P.C., 'Determination of Monotonic Stress-strain Curve of Hard Materials from Ultra-lowload-indentation Tests', Int. J. Solid Struct., Vol. 35, pp. 365-381, 1998 https://doi.org/10.1016/S0020-7683(97)89371-7
  5. Cao Y.P. and Lu J., 'A New Method to Extract the Plastic Properties of Metal Materials from an Instrumented Spherical Indentation Loading Curve', J. Acta Materialia, Vol. 52, pp. 4023-4032, 2004 https://doi.org/10.1016/j.actamat.2004.05.018
  6. Augulis L., Tamulevicius S., Augulis R., Bonneville J., Goudeau P., and Templier C., ' Electronic Speckle Pattern Interferometry Formechanical Testing of thin Films', Optics and Lasers in Engineering, Vol. 42 (2004) pp. 1-8, 2004 https://doi.org/10.1016/j.optlaseng.2003.06.001
  7. Bamberg E., Grippo C.P., Wanakamol P., Slocum A.H., Boyce M.C., and Thomas E.L., 'A Tensile Test Device for in Situ Atomic Force Microscope Mechanical Testing', Precision Eng., Vol. 30, pp. 71-84.2006 https://doi.org/10.1016/j.precisioneng.2005.05.001
  8. 양경탁, 김현준, 김호경, '마이크로 압업 크리프 시험기 개발 및 성능평가', 한국윤활학회지, Vol. 24, No. 1, pp. 27-33, 2008
  9. ISO 14577 - 1 Metallic materials - Instrumented indentation test for hardness and materials parameters- Part 1 : Test method
  10. Fischer-Cripps A.C. 'Nanoindentation', Springer, pp. 69-93, 2004
  11. Stauss S., Schwaller P., Bucaille J.L., Rabe R., Rohr L., Michler J., and Blank E., 'Determining the Stress-strain Behaviour of Small Devices by Nanoindentation in Combination with Inverse Methods', Microelectronic Engineering, Vol. 67-68, pp. 818-825, 2003 https://doi.org/10.1016/S0167-9317(03)00192-8