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

Published online by Cambridge University Press:  30 July 2014

Francisco Fernando Roberto Pereira ,
Maria Goretti Ferreira Coutinho ,
Bruno Moura Miranda  and
Carlos José de Araújo
Francisco Fernando Roberto Pereira
Affiliation:
Universidade Federal de Campina Grande (UFCG), 882 Aprígio Veloso Avenue, Bairro Universitário, Zip Code: 58429-140, Campina Grande – PB, Brazil. Laboratório Multidisciplinar de Materiais e Estruturas Ativas (LaMMEA), Mechanical Engineering Department.
Maria Goretti Ferreira Coutinho
Affiliation:
Universidade Federal de Campina Grande (UFCG), 882 Aprígio Veloso Avenue, Bairro Universitário, Zip Code: 58429-140, Campina Grande – PB, Brazil. Laboratório Multidisciplinar de Materiais e Estruturas Ativas (LaMMEA), Mechanical Engineering Department.
Bruno Moura Miranda
Affiliation:
Universidade Federal de Campina Grande (UFCG), 882 Aprígio Veloso Avenue, Bairro Universitário, Zip Code: 58429-140, Campina Grande – PB, Brazil. Laboratório Multidisciplinar de Materiais e Estruturas Ativas (LaMMEA), Mechanical Engineering Department.
Carlos José de Araújo
Affiliation:
Universidade Federal de Campina Grande (UFCG), 882 Aprígio Veloso Avenue, Bairro Universitário, Zip Code: 58429-140, Campina Grande – PB, Brazil. Laboratório Multidisciplinar de Materiais e Estruturas Ativas (LaMMEA), Mechanical Engineering Department.
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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).

Keywords

memoryplasmaphase equilibria
Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1611: Symposium 4A – Advanced Structural Materials--2013 , 2014 , pp. 25 - 30
Copyright
Copyright © Materials Research Society 2014 

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References

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