Journal of the Korean Society for Heat Treatment (열처리공학회지)

The Korean Society for Heat Treatment (한국열처리공학회)
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Phase Transformation Behavior on Aging Treatment in CuAINi Shape Memory Alloy

CuAINi 형상기억합금의 시효처리에 따른 상변태 거동

  • Yang, G.S. (Dept. of Materials Engineering, Chosun University) ;
  • Kang, J.W. (Dept. of Metallurgical Engineering, Chosun University)
  • 앙권승 (조선대학교 공과대학 재료공학과) ;
  • 강조원 (조선대학교 공과대학 금속공학과)
  • Published : 1993.12.31
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Abstract

This research was performed to investigate the transformation behavior and shape memory effect of Cu-13.5Al-4.5Ni(wt%) alloy with various aging temperature and time. The results obtained in this study are as follows: Transformation temperature was very increased when aging temperature is at $250^{\circ}C$. The variation of transformation temperature in first reverse transformation cycle and second was very significant, but there was little difference in case of 2nd and 3rd. Transformation temperature at various aging temperature was increased with increasing of aging temperature and time. Microvickers hardness was increased with increasing of aging temperature and time. It was found that ${\alpha}$ and ${\gamma}_2$ phase were created by aging of long time at high temperature.

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