Journal of the Korean Society for Heat Treatment (열처리공학회지)
- Volume 4 Issue 4
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- Pages.34-43
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- 1991
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- 1225-1070(pISSN)
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- 2508-4046(eISSN)
Transformation Behavior on Heat Treatment Condition in Grain-Refined Cu-Zn-Al Shape Memory Alloy
결정립 미세화된 Cu-Zn-Al 형상기억합금의 열처리 조건에 따른 변태거동
- Kang, J.W. (Dept. of Metallurgical Engineering, Chosun University) ;
- Jang, W.Y. (Dept. of Metallurgical Engineering, Chosun University) ;
- Yang, G.S. (Dept. of Materials Engineering, Chosun University)
- Published : 1991.12.31
Abstract
A small amount of misch metal and/or Zr was added as a dopant to 70.5wt----Cu-26wt----Zn-3.5wt----Al shape memory alloy in order to study the effect of grain refinement and heat treatments on the transformation behavior, stabilization of martensite, and shape memory ability. It was found that the addition of misch metal and Zr was very effective for reducing the grain size. The fracture mode has been changed from intergranular brittle fracture to ductile fracture with void formation and coalescence by the addition of misch metal and Zr. Aging of the
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