Korean Journal of Metals and Materials (대한금속재료학회지)

The Korean Institute of Metals and Materials (대한금속재료학회)
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A study on the Thermal Fatigue Properties of Mg/Mg-Al18B4O33 Functionally Graded Material by Thermal Cycling Test and Finite Element Method

열반복 시험 및 유한요소해석을 통한 Mg/Mg-Al18B4O33 경사기능 재료의 열피로특성에 관한 연구

  • Lee, Wookjin (School of Materials Science and Engineering, Pusan National University) ;
  • Yang, Junseong (School of Materials Science and Engineering, Pusan National University) ;
  • Choi, Kyewon (School of Materials Science and Engineering, Pusan National University) ;
  • Park, Yongha (School of Materials Science and Engineering, Pusan National University) ;
  • Park, Bonggyu (School of Materials Science and Engineering, Pusan National University) ;
  • Park, Ikmin (School of Materials Science and Engineering, Pusan National University) ;
  • Park, Yongho (School of Materials Science and Engineering, Pusan National University)
  • Received : 2008.03.06
  • Published : 2008.08.25
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Abstract

MMCs were manufactured in two different forms. One was two-layered non FGM composite and the other was four-layered FGM composite. The matrix used in this study was AZ31 magnesium alloy and the reinforcement was $Al_{18}B_4O_{33}$. The composite materials contained reinforcement fibers with a volume fraction of 0, 15, 25 and 40%. Squeeze infiltration method was used for the fabrication of each block. The thermal properties of the FGM alloy and composite joints were studied by conducting thermal cycling tests. The numerical calculation (the finite elements method-FEM) results exhibited a good agreement with the experimental results. Thermal stresses induced by thermal cycling test were clearly reduced in the functionally graded materials.

Keywords

Acknowledgement

Supported by : 과학기술부

References

  1. D. M. Lee, B. K. Suh, B. G. Kim, J. S. Lee, C. H. Lee, Mater. Sci. Technol. 13, 590 (1997) https://doi.org/10.1179/mst.1997.13.7.590
  2. K. K. Ulrich, Proc. of 12th Int. Conf. on Composite Mater. (ed. by T. Massard), p453, Woodhead Publishing Limited, Melbourne, Australia. (1999)
  3. C. Mayencourt and R. Schaller, Proc. of 12th Int. Conf. on Composite Mater. (ed. by T. Massard), p459, Woodhead Publishing Limited, Melbourne, Australia. (1999)
  4. C. O. Son and S. H. Lee, Proc. of 12th Int. Conf. on Composite Mater. (ed. by T. Massard), p659, Woodhead Publishing Limited, Melbourne, Australia. (1999)
  5. I. M. Park, K. S. Shin and E. P. Yooh, J. Kor. Foundrymen's Soc. 8, 412 (1990)
  6. N. J. Kim, D. Y. Lee, S. H. Lee and S. H. Ahn, J. Kor. Inst. Met & Mater., 3, 35 (1990)
  7. M. Zheng, Y. Kojima, Microstructure and mechanical properties of aluminum borate whisker-reinforced magnesium matrix composite, Mater. Lett. 57, 558 (2002) https://doi.org/10.1016/S0167-577X(02)00829-7
  8. P. Gu, R. J. Asaro, Cracks in functionally graded materials, Int. J. Solids Struct., 34, 1 (1997) https://doi.org/10.1016/0020-7683(95)00289-8
  9. B. Ilschner, Processing-microstructure-property relationships in graded materials, J. Mech. Phys. Solids, 44, 647(1996) https://doi.org/10.1016/0022-5096(96)00023-3
  10. H. Li, J. Lambros, B.A. Cheeseman and M.H. Santare, Experimental investigation of the quasi-static fracture of functionally graded materials, Int. J. Solids Struct., 37, 3715 (2000) https://doi.org/10.1016/S0020-7683(99)00056-6
  11. P. R. Marur, H. V. Tippur, Numerical analysis of crack-tip fields in functionally graded materials, Int. J. Solids Struct. 37, 5353 (2000) https://doi.org/10.1016/S0020-7683(99)00207-3
  12. D. Chicot, I. Hage, P. Demarecaux and J. Lesage, Elastic properties determination from indentation tests, Surface and Coating Tech. 81, 269 (1996) https://doi.org/10.1016/0257-8972(95)02474-3