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Vol 11, Issue 1, 2016
Pages: 69 - 74
Research article
Metallic materials
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Published: 21.04.2016. Research article Metallic materials

ANALYSIS OF Cu-Al-Mn SHAPE MEMORY ALLOYS AFTER CASTING IN MOULDS

By
Mirko Gojić ,
Mirko Gojić
Contact Mirko Gojić

Faculty of metallurgy, University of Zagreb , Zagreb , Croatia

Stjepan Kožuh ,
Stjepan Kožuh

Faculty of metallurgy, University of Zagreb , Zagreb , Croatia

Ivana Ivanić ,
Ivana Ivanić

Faculty of metallurgy, University of Zagreb , Zagreb , Croatia

Tamara Holjevac-Grgurić ,
Tamara Holjevac-Grgurić

Faculty of metallurgy, University of Zagreb , Zagreb , Croatia

Robert Pezer ,
Robert Pezer

Faculty of metallurgy, University of Zagreb , Zagreb , Croatia

Ivan Anžel ,
Ivan Anžel

Faculty of mechanical engineering, University of Maribor , Maribor , Slovenia

Borut Kosec ,
Borut Kosec

Faculty of Natural Sciences and Engineering, University of Ljubljana , Ljubljana , Slovenia

Milan Bizjak ,
Milan Bizjak

Faculty of Natural Sciences and Engineering, University of Ljubljana , Ljubljana , Slovenia

Ladislav Vrsalović ,
Ladislav Vrsalović

Faculty of Chemistry and Technology, University of Split , Split , Croatia

Dragana Živković
Dragana Živković

Technical faculty Bor, University of Belgrade , Belgrade , Serbia

Abstract

Shape memory alloys (SMAs) are advanced functional materials suitable for technical applications. 
Among them Cu-Al-Mn alloy is a promising candidate for industry applications (mechanical 
engineering, electro-engineering etc.) due to their ductility. In this work analysis of the Cu-Al-Mn 
alloy after smelting and casting in the laboratory electro-arc furnace is shown. Metallographic 
analysis of the alloy samples were carried out by an optical microscopy and scanning electron 
microscopy including energy dispersive spectroscopy. It was found that after casting two-phase 
(+) microstructure occurred. Grain size of phases and hardness of alloy after smelting and casting 
are similar. Martensite microstructure and secondary particles are not observed. 

Funding Statement

This work has been fully supported by Croatian Science Foundation under the project IP- 2014-09-3405.

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