A STUDY OF PHASE TRANSFORMATION IN SHAPE MEMORY ALLOY CuAl9Fe4
Journal Title: Journal of Mechanical Engineering Research & Developments (JMERD) - Year 2019, Vol 42, Issue 2
Abstract
Microstructure and phase transformation in shape memory alloy Cu-Al (Fe addition: 9% Al, 4 % Fe) were investigated in this study. It is a material capable of restoring its original shape when impacted by a reasonable temperature or cyclic stress and production cost is not too expensive. In many years, shape memory alloys (SMA) based on Cu – Fe is considered to be very attractive to industrial and biomedical applications such as cardiovascular, orthopedic, surgery and production of spare parts and jigs. Original alloy exists β martensite and only exists 〖α^’〗_1 (3R)+ 〖β’〗_1(9R) + 〖γ^’〗_(1 ) (2H) which is finely dispersed homogenously in microstructure after finishing shape memory transformation. Shape memory rate obtained 6%-24% corresponding to each deformation angle before the experiment. Phase transformation between these two phases during deformation as well as the heating-cooling process which create the basis for the unique properties of the alloy.
Authors and Affiliations
Nguyen Duong Nam, Vu Anh Tuan, Nguyen Hai Yen, Dao Van Lap, Pham Mai Khanh
Keywords
Related Articles
- EP ID EP503669
- DOI 10.26480/jmerd.02.2019.72.75
- Views 79
- Downloads 0
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