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Study of a Cu-Al-Mn Shape Memory Alloy Produced by Plasma Melting Followed by Injection Molding

  • Francisco Fernando Roberto Pereira (a1) (a2), Maria Goretti Ferreira Coutinho (a1) (a2), Bruno Moura Miranda (a1) (a2) and Carlos José de Araújo (a1) (a2)

Abstract

Shape Memory Alloys (SMA) are characterized by the capacity to recover a permanent deformation after being heated above a critical temperature called Final Austenite Temperature (Af). The Ni-Ti SMA are the most commercially used, however recent studies showed that the Cu-Al-Mn SMA present significant shape recovery and mechanical properties, showing a strong potential for developing new applications. In this context, the main goal of this work is to manufacture a Cu-Al-Mn SMA through a plasma melting process followed by injection molding of liquid metal and then characterize the samples, using the following techniques: Optical Microscopy (OM), Differential Scanning Calorimetry (DSC), Electrical Resistance as a function of Temperature (ERT) tests, Dynamical Mechanical Analysis (DMA) and Microhardness (MH).

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References

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1. Otsuka, K., Wayman, C.M.. Shape Memory Materials. 1ª ed. Cambridge University Press, Cambridge, UK, pp. 284 (1998).
2. Hodgson, D. E., Wu, H. M., Biermann, R. J.. Shape Memory Alloys, Metals Handbook. Vol. 2. pp. 897902 (1990).
3. Lu, X., Chen, F., Li, W., Zheng, Y.. Journal of Alloys and Compounds, Vol. 480, pp. 608611 (2009).
4. de Araújo, C.J., Gomes, A. A. C., Silva, J. A., Cavalcanti, A. J. T., Reis, R. P. B., Gonzalez, C. H.. Journal of Materials Processing Technology, Vol. 209, pp. 36573664 (2009).

Keywords

Study of a Cu-Al-Mn Shape Memory Alloy Produced by Plasma Melting Followed by Injection Molding

  • Francisco Fernando Roberto Pereira (a1) (a2), Maria Goretti Ferreira Coutinho (a1) (a2), Bruno Moura Miranda (a1) (a2) and Carlos José de Araújo (a1) (a2)

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