Korean Journal of Materials Research (한국재료학회지)

Materials Research Society of Korea (한국재료학회)
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Manufacturing of Cu-26.7Zn-4.05Al(wt.%) Shape Memory Alloy Using Spark Plasma Sintering

Spark Plasma Sintering을 이용한 Cu-26.7Zn-4.05Al(wt.%) 형상기억합금의 제조

  • Park, No-Jin (School of Advanced Materials and Systems Engineering, Kumoh National Institute of Technology) ;
  • Lee, In-Sung (School of Advanced Materials and Systems Engineering, Kumoh National Institute of Technology) ;
  • Cho, Kyeong-Sik (School of Advanced Materials and Systems Engineering, Kumoh National Institute of Technology) ;
  • Kim, Sung-Jin (School of Advanced Materials and Systems Engineering, Kumoh National Institute of Technology)
  • 박노진 (금오공과대학교 신소재시스템공학부) ;
  • 이인성 (금오공과대학교 신소재시스템공학부) ;
  • 조경식 (금오공과대학교 신소재시스템공학부) ;
  • 김성진 (금오공과대학교 신소재시스템공학부)
  • Published : 2003.06.01
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Abstract

In order to control the grain size, the spark plasma sintering technique is applied for the manufacturing of Cu-26.7Al-4.05AI(wt.%) shape memory alloy with pure Cu, Zn, and Al element powders. The sintering processes were carried out under different atmospheres. The sintered bodies were denser under Ar or Ar＋4%$H_2$gas atmosphere than under vacuum. With use of small-sized powders, a very small average grain size of 2∼3 $\mu\textrm{m}$ was obtained, but the single phase was not formed. With the large-sized powders the single austenitic phase was observed with the average grain size of $70∼72\mu\textrm{m}$. When the different size of raw powders was mixed, it is confirmed that the average grain size of the manufactured alloys was 15 $\mu\textrm{m}$ with single austenitic phase, but the distribution of grain size was not uniform.

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References

  1. T. W. Duering, K. N. Melton, D. Stoeckel and C. M. Wayman 'Engineering Aspects of Shape Memory Alloys' , Butterworth-Heinemann Ltd, London (1990)
  2. Z. Nishiyama, Martensitic Transformation, Academic Press (1978)
  3. J. S. Lee and C. M. Wayman, Metallographie, 19, 401 (1986) https://doi.org/10.1016/0026-0800(86)90074-1
  4. K. Murakami, Y. Murakami, K. Mishma and Y. Ikai, J. Japan Int. Metals, 48, 115 (1984) https://doi.org/10.2320/jinstmet1952.48.2_115
  5. C. S. Choi and I. S Chung, J. Korean. Inst. Met. & Mater., 34, 680 (1996)
  6. J. Janssen, F. Willems, B. Verelst, J. Maertens and L. Delaey, J. de Physique, 43, C4-809 (1982)
  7. N. Nakanishi and T. Shigematsu, Bull. Japan Int. Metals, 28, 659 (1989) https://doi.org/10.2320/materia1962.28.659
  8. Y. T. Choi and I. S. Chung, J. Korean Inst. Met. & Mater., 28, 857 (1990)
  9. N. J. Park, C. Q. Wang and H. J. Bunge, Mat. Sci. Forum, 157-162, 827 (1994) https://doi.org/10.4028/www.scientific.net/MSF.157-162.827
  10. S. B. Yi and N. J. Park, Korean J. Materials Research, 9, 322 (1999)
  11. M. Tokita, J. Powder Tech. Japan, 30, 790 (1993) https://doi.org/10.4164/sptj.30.11_790
  12. K. -S. Cho, S. Kim, S. -H. Beak, H. -J. Choi and J. -G. Lee, J. Kor. Ceram. Soc., 38, 687 (2001)
  13. M. lyama et al., Abstracts of 1999 annual meeting of JSPM, 237 (1999)
  14. T. Muraoka and T. Asaoka, Abstracts of 1999 annual meeting of JSPM, 238 (1999)
  15. N. J. Park, I. S. Lee, K. -S. Cho, S. Kim, J. Kor, Crystal Growth and Crystal Technology, 12, 172 (2002)
  16. L. Delaey, A. Deruyttere, E. Aernoudt and J. R. Roos, Shape Memory Effect, Superelasticity and Damping in Copper-Zinc-Aluminium Alloys, INCRA Report 78R1, Belgium, (1978)
  17. P. Villas, A. Prince and H. Okamoto, Handbook of Ternary Alloy Phase Diagrams, ASM International, 3, (1990)
  18. L. Delaey and R. De Vos, Z. Metallkde., 70, 33 (1979)